In this comparison of Dell Precision 7740 and Precision 7750, we will see improvements and changes made in this latest Precision laptops. So, we will decide which one is better in performance and all.
|BUY NOW||BUY NOW|
|DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|The specs like CPU and GPU are really good options.|
Good quality 4K display.
|Great thermal performance even in high load.|
Good quality display.
|Weighs a little bit more.|
Average battery life.
Average battery life.
|DISPLAY||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Diagonal Size||17.3 in. HD+ TN AG non-touch, No Mic, 60% color gamut display,|
17.3 in. HD+ TN AG non-touch, Mic, 60% color gamut display,
17.3 in. HD+ TN AG non-touch, Cam/Mic, 60% color gamut display,
17.3 in. UltraSharp FHD WVA AG, NT, No Mic, w/Prem Panel Guar 72% color gamut display,
17.3 in. UltraSharp FHD WVA AG, NT, Mic, w/Prem Panel Guar 72% color gamut display,
17.3 in. UltraSharp FHD WVA AG, NT, Cam/Mic, w/Prem Panel Guar 72% color gamut display,
17.3 in. UltraSharp FHD WVA AG, NT, No WWAN, IR Cam/Mic, w/Prem Panel Guar 72% color gamut display,
17.3 in. UltraSharp UHD WVA AG NT, No WWAN, Cam/Mic, w/Prem Panel Guar 100% Adobe color gamut display
|17.3-inch, FHD, 60 Hz, Anti-Glare, Non Touchscreen, 45% NTSC, 220 Nits, WVA display,|
17.3-inch, FHD, 60 Hz, Anti-Glare, Non Touchscreen, 100% DCIP3, 500 Nits, WVA display,
17.3-inch, UHD, 60 Hz, Anti-Glare, Non Touchscreen, 100% Adobe, 500 Nits, HDR400, WVA display
|Resolution||1600 x 900, 1920 x 1200, 3840 x 2160||1920 x 1080, 3840 x 2160|
|LCD Backlight Technology||LED-backlight||LED-backlight|
|PROCESSOR||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|CPU||9th Gen Intel I5-9400H, I7-9750H, I7-9850H, I9-9880H, I9-9980HK, Intel Xeon E-2276M, Intel Xeon E-2286M||Intel Xeon W-10855M, Intel Xeon W-10885M, 10th Generation Intel Core i5-10400H, i7-10750H, i7-10850H, i7-10875H, i9-10885H|
|Clock Speed||4.3 GHz, 4.5 GHz, 4.6 GHz, 4.8 GHz, 5.0 GHz||4.6 GHz, 5.0 GHz, 5.1 GHz, 5.3 GHz|
|Cache||8 M, 12 M, 16 M Cache||8 MB, 12 MB, 16 MB Cache|
|MEMORY||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Speed||2666Mhz, 3200MHz||2666Mhz, 3200MHz|
|Technology||DDR4 ECC or Non-ECC||DDR4 ECC or Non-ECC|
|Size||8GB to 128GB||8GB to 128GB|
|HARD DRIVE||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Storage||Upto 2 TB||Upto 2 TB|
|Spindle Speed||M.2 PCIe NVMe SSD, 2.5-inch SATA HDD||M.2 PCIe NVMe 35 class Solid State Drive, M.2 PCIe NVMe 40 class Solid State Drive, M.2 PCIe NVMe 50 class Solid State Drive|
|AUDIO & VIDEO||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Graphic Processor||Intel UHD Graphics 630, |
Intel UHD Graphics P630,
NVIDIA Quadro RTX3000,
NVIDIA Quadro RTX4000,
NVIDIA Quadro RTX5000,
Radeon Pro WX 3200,
Radeon Pro WX7130
|Intel UHD Graphics 630,|
NVIDIA Quadro T1000, 4 GB, GDDR6,
NVIDIA Quadro RTX3000, 6GB, GDDR6,
NVIDIA Quadro RTX4000, 8 GB, GDDR6,
NVIDIA Quadro RTX5000, 16 GB, GDDR6
|Sound||Four-channel high-definition audio, Two (Directional speakers)||2 W Stereo speaker|
|Camera||Still image: 0.92 megapixels, Video: 1280×720 at 30 fps||HD 1280 x 720 RGB at 30 fps camera with Omni-directional digital Microphone, HD 1280 x 720 RGB at 30 fps IR camera with Omni-directional digital Microphone + Proximity sensor|
|OPERATING SYSTEM||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Type||Windows 10 Home, Windows 10 Pro, Windows Professional||Windows 10 Home, Windows 10 Pro|
|CONNECTIONS||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Ports||3 USB 3.1 Gen 1 ports with PowerShare, Noble wedge lock slot, Headset port,|
Noise reduction array microphones,
1.4 HDMI 2.0,
1 RJ-45 connector,
2 thunderbolt 3 Type-C ports
|1 Universal Audio Jack,|
3 USB 3.2 Gen 1 with Powershare,
1 Mini DP 1.4,
1 HDMI 2.0,
2 USB 3.2 Gen 2 Thunderbolt 3.0 Type C,
1 Cable Lock,
1 Smart Card Reader
|Memory card||SD-card reader||SD-card reader|
|COMMUNICATIONS||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Wireless Protocol||Wi-Fi 802.11n/ac via M.2 & Bluetooth||Intel Wi-Fi 6 AX201|
|BATTERY||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Capacity||64 WHr or 97 WHr||68 WHr or 95 Whr|
|Cells||4 cell or 6 cell||6 cell|
|DIMENSIONS & WEIGHT||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Width||16.31 in||15.75 in|
|Depth||10.78 in||10.38 in|
|Height||1.03 – 1.19 in||1.14 in|
|Weight||6.81 lbs||6.65 lbs|
|MISCELLANEOUS||DELL PRECISION 17 7740||DELL PRECISION 17 7750|
|Color||Aluminum Titan Gray LCD Cover|
|Keyboard||Optional backlit keyboard||Internal US/International Qwerty Non-backlit Keyboard with 10 Key Numeric Keypad, Internal US/International Qwerty Backlit Keyboard with 10 Key Numeric Keypad|
Dell Precision 7740
The Precision 7740 has 9th gen processor and other than that everything is pretty the same as the latest gen laptop Precision 7750. As it has an old 9th gen processor, we cannot put aside this laptop because it also performs really well.
Dell Precision 7750
The Precision 7750 is the latest mobile workstation in Dell’s 7000 series. As it is from the 7000 series, the thermal performance is really good in this laptop. Combining the size and performance, it is not that portable but we can say it is semi-portable.
DESIGN & CONSTRUCTION:
Dell Precision 7740
The interior of the laptop is good which gives a sort of rubber feels to it. So, it can take a bit of roughness to it and the side is all aluminium base and the top exterior is depending on the screen that you get, so this one I’ve got is the carbon fiber version and there is also aluminium version as well or normal version as well. The bottom is just all plastic, there is nothing really fancy.
The starting weight of the Precision 7740 is 3.09 kilos. This one I have for review is a six-cell battery with two Ram slots and it is the carbon fiber with the HD screen and that’s coming at 3.36 kilos and its power adapter coming at 842 grams.
The keyboard is a full-size one. So, you actually have the number pad is included, it’s just grateful. I know a lot of people really like having a number pad on the keyboard. As for the travel of the keys, it’s got a nice tactile feel to it as well. The feel of the surface is a little not smooth and not rough, it’s actually in between. So, it’s got a really nice feel to it. In between the keyboard and the trackpad, you got three buttons. The trackpad looks actually quite small but it’s actually quite large, it just looks small because of how large this computer is but that’s decent enough for what it does. I do kind of wish they actually put the Dell Precision 5540 trackpad feel to it in the 7740 because I do like the more glass feel to it. This one is not giving that feel, it’s actually got a more of a rough feel.
Dell Precision 7750
As for the build quality of the computer, it is an all aluminium top as well as the bottom and also for the side is a nice beautiful brush aluminium all on the sides. The only thing that’s really plastic is actually the hinge but they’re actually a very durable hinge. On the inside, you’ve got the nice sort of rubberized sort of feel to the palm rest, it’s still plastic but it’s actually very durable. The weight of the 7750 is 3.19 kilos and add in the power adapter is 3.96 kilos.
There is a full-size keyboard and it has a number pad which I really like. It’s got a really nice sort of feel to there as well and the surface type of the keys itself is a bit more like a rubberized soft type than the hard flat rubber. So, it’s actually quite nice and it’s got the tactile feel and quite nice texture. You don’t actually have any problems with the palm, it’s actually quite a large palm rest there. You’ve got plenty of room on the left side for your left arm.
As for the trackpad, it looks a little bit small but it’s not, because proportionately compared to the big keyboard and the massive palm rest. It just looks small but it is quite large. The trackpad is nice and smooth, it’s got a glass feel to it. If you’ve got a moist hand, you can still quite happily glide, plus you’ve got the free mechanical button. I’ve just found out what the middle button is really useful, especially for solidworks or CAD work.
Dell Precision 7740
Screen-wise, it is a 17.3-inch screen and there are a few options. The first one is an HD option on such a large screen but it is running the TN technology and that one is about 220 nits of brightness. As for the full HD option, you’re looking at about 300 nits and that’s using the WVA technology and then there is also the Ultra HD which is the 4K option and that does run the WVA technology as well and that goes up to 400 nits of brightness. You can get a touch or non-touch version of those screens.
I did a color calibration on this laptop with the Spyder Pro tool. At a factory unlocked, it is a lot more cooler and after it’s calibrated, it’s warmed up a fair bit and as for magenta and the green tinge, it doesn’t seem to have changed too much. It’s just warmer after it’s calibrated. There are ten increments to the brightness of the screen, its maximum brightness of this screen is 237 nits. I did test out the color gamut coverage of this HD screen and Adobe RGB came at 50.8% coverage and for sRGB came at 70% coverage.
Dell Precision 7750
As for the display, there are not many options. It’s actually only three options, so you don’t really get confused. Two of them are full HD options. So, the first one is a power-saving display and that has a rating of a maximum brightness of 220 nits of brightness, and the second one which is the normal one has a maximum rating of 500 nits of brightness and they both don’t do touch and the third option is a UHD display or 4K resolution and that is rated at a maximum brightness of 500 nits of brightness and it doesn’t have touch, and all three displays have an anti-glare matte finish type of look to this display.
We test out the display if it uses PWM. If a screen uses PWM and you’re staring for a long period of time or working on the screen for a very long period of time, it increases the probability of leading to an increase in eye strain as well as headaches. The result of this is, there is a PWM running on this laptop screen.
To have a look at the luminance or the brightness of the display, the one we’ve got for review is the full HD and it is rated at 500 nits. There are actually 10 increments on the keyboard for the brightness displays. After calibration, the display is actually got a lot more cooler. It definitely looks a lot nicer after calibration. Testing out the color gamut coverage of the Full HD display, this is the 500 nits. It measured in at 99.7% sRGB coverage and 79.5% adobe RGB coverage which isn’t too bad. let’s have a look inside offset 7750.
Dell Precision 7740
You can actually spec this computer with a processor of anywhere between an i5 to a Xeon and this is running the ninth generation. Ram wise, you can go from 8 GB to 128 GB, and with the Xeon, you can go up to 64 GB of ECC Ram. Now, they are running off four DIMM slots, and harddrive wise, it actually houses four PCIe SSD drives and there is space for a 2.5-inch hard drive as well. Graphics-wise, it does have discrete graphics and that is running off with NVIDIA Quadro RTX 3000 to the 5000.
For the ports, we’ve got the audio combo jack, two USB 3.1 which do power share as well, and then we’ve got to exhaust and then we have the noble lock for security. Looking around to the back end, we’ve got another exhaust vents and then we have the HDMI 2.0B, mini DisplayPort. On the other side, we have an RJ45 Ethernet port, another USB 3.1 as well and there were other exhaust vents, and then we have the AC barrel for power. On the left-hand side, there is another exhaust vent and then we have two Thunderbolt USB-C and we’ve got a full-size SD card reader. You also have the optional smart card slot as well.
For the sound of this computer, it does have two speakers and they’re located on the bottom end of the computer. When I tested the speakers at their maximum peak, the decibel meter read at around 84 decibels, so that’s its loudest point which is decent. The quality of the sound was actually fairly good, it actually has a bit of bass. So, you can actually hear the bass between 80 to 200 Hertz, you actually have a bit of bass which’s fantastic. For the high end, it didn’t distort crazy too much. So, these are definitely decent speakers.
There is a Dell Precision optimizer which is software built from Dell to actually make use of these very powerful computers. It does CPU optimization, graphics optimization, and power optimization and it all depends on your workload as well. So, it boosts performance and also helps you with an increasing amount of battery life as well. These are only for Precision computers.
Dell Precision 7750
With the processor, it is the 10th generation Intel core and you can get anywhere between an i5 to Xeon and as for the RAM, you can actually configure these up to a maximum capacity of 128 GB, and of course, it can be configured with a Non-ECC RAM from the i5 to Xeon and then you can also configure with the ECC RAM as well for the Xeon. As for storage, it can house four M.2 format SSD hard drives. As for graphics, it’s got the integrated Intel graphics but more than likely you’ll be configuring it with the discrete graphics. Now, what it can be configured with is an NVIDIA Quadro T1000 or an RTX 3000 or RTX 4000, or even the RTX 5000. It’s got a fair bit of graphical grunt if you need that to be configured in this computer.
For the ports, on the right-hand side, we have the full-size SD card reader, then we get the headphone jack, two USB 3.1 gen1 ports, and the one on the right is power share and then we’ve got the wedge lock slot. Looking at the back of the computer, we have the mini display port that’s version 1.4, the HDMI port version 2.0, and then we have the RJ45 ethernet port, and then we have the DC-In for the power. On the left-hand side of the computer, we have two thunderbolt ports, a USB 3.1 gen1 port, and then the optional smart card reader.
With the webcam, it is a 720p webcam. There are two options; the first one being the RGB version which we have for this review, and the second one is the IR version. Now, with the RGB version, you do have a privacy shot, it’s a little lever on top of this display. It’s been a little flick and you’ll see a physical shutter go over it and it has a red light to know that the shutter is over it, so you can’t have it accidentally turn on.
Speaker-wise, when I tested out the maximum peak volume of the speakers, it measured at 85 decibels. So, it’s not really overly loud, you would be happy to actually still be able to do some presentations when you’re on the go but it’s not overly loud. As for the sound quality, even though it’s on a softer side compared to a lot of other laptops, the sound quality is not bad at all. It’s got a bit of bass and what really impressed me is the clarity of the sound, especially when you have this on maximum peak volume, you can hear the different layers of the different frequencies of the sound. If we compare the 7750 to the 7550, you definitely hear the noticeable difference between the 7750 and the 7550. The 7750 is way more clearly than the 7550.
There is a new software that Dell has created for the Dell Precision and Latitude series for 2020. What the Dell Power Manager is, mostly to do with the battery life but what we’re really interested in is this one called thermal management which can be accessed for the BIOS but now they’ve actually created software which you can actually change the settings in Windows on the fly which is fantastic. The thermal settings are normally set to optimize and this is to deal with more about the fan and the fan noise as well. Also, you can unlock some of the voltages as well. What we’re really interested in is called Ultra Performance and that basically allows the fan to run and just go at whatever it wants to be and produce the best results for coolings. Therefore, you can actually get better performance. This is fantastic if you’re doing a lot of number crunching or doing a lot of renders and you can actually set it to ultra-performance for that period of time and then once you finish that burdensome load task and then you can quickly switch it back to optimize mode once you’re done.
Dell Precision 7740
When I did the stress of the Precision 7740, I do point to the temperatures and loudness of fans. So, where the actual heat is when this computer is under load, you’ll find it’s actually heating up above the keyboard in between the keyboard and the screen hinge. So, it’s in that general area which is unsurprisingly where the exhaust vents are which means they’re doing the job fantastically. On the keyboard, you don’t really feel much of the heat at all. When the computer running 100% utilization, on the area between the keyboard and the hinge, it read at 38 degrees Celsius and the ambient temperature was 22 degrees, and the decibel meter read at 43 decibels. I did run the computer at 50% utilization and it read at 39 degrees Celsius and the decibel meter read at 40 decibels. So, it’s still doing extremely well, it does spin up but it doesn’t spin up that crazy. I did run this computer at 15% utilization that’s pretty much like surfing the web, streaming video and music, doing word or powerpoints and documents, the thermometer above the keyboards was reading at 38 degrees Celsius and the decibel meter was reading at 36 decibels, so that’s pretty quiet. I did measure the keyboard temperature as well and that came back 32 degrees Celsius and the ambient temperature was 22 degrees, so that’s doing extremely well. So, the overall thermals on this are pretty amazing.
For the CPU test, I set it at the utilization of 100%, and same with the GPU is being stressed as well and it looks to be pretty decent. The computer is actually doing a decent job of cooling itself and keep maintaining quite a high speed.
Dell Precision 7750
When I tested that the fan noise and temperature of the 7750, most of the heat is where the exhaust fans are, vents at the back which is where it should be, and also near the middle top of the keyboard that’s where the GPU and also the CPU is sitting but it’s closer to where the function keys rather than the middle part.
The ambient temperature was 21 degrees celsius when I did the measurements. I did the very first base measurement which was when the computer was on idle and it managed the hottest part was 31 degrees celsius where near the keyboard and it measured for the fan noise was 31 decibels. So, it’s pretty much quiet. Then, I put the computer on 20% load that’s CPU and GPU and that’s pretty much what you’ll be looking at for average office productivity work as well as streaming the videos and surfing the web, the center of the keyboard measured at 35 degrees celsius and the fan noise was 32 decibels. I put the computer on 50% load and the maximum temperature was 37 degrees celsius and the fan noise was at 34 decibels. Then, I put the computer at 100% load and is measured at a maximum of 41 degrees celsius, and the fan noise for the maximum was 42 decibels. This is all under the optimized mold in the thermal management and for the fan noise, it was mostly at 38 decibels for about two minutes and then a ramp up to about 42 decibels for another two minutes. When it’s running at a maximum of about 44 decibels, the fan noise is not annoying.
This precision 7750 is configured with an i7 10850H processor and I’ve tested this computer for any thermal throttle. This computer does not thermal throttling but it does a very little amount of turbo frosting. I’ve tested this computer for a very long extended period of time, it has a very nice stable staying at 4.3 gigahertz that’s pretty impressive and it doesn’t really change pretty much. This thermal design can do a lot of number crunching, computering, or even rendering, this is really stable.
Dell Precision 7740
It does come with the 240-watt power adapter, it’s actually quite large but it’s actually not that crazy heavy for the size it is. As for the battery, there are two options. You can get a four-cell battery or a six-cell battery, the one I have is a six-cell battery. When I tested the battery life, I put in performance mode pretty much ran all the hardware at 100% utilization and I got one and half hours. When I was just doing video encoding and a lot of processing, especially for the CPU of nearly 100% encoding but the hard drives are running a little bit lower than that, I actually got about two and half hours. For better battery mode, I got around 11 hours and that’s with the screen brightness at about 50%. When I have the computer in battery saving mode, I got around 13 hours and that’s pretty much with the screen brightness at around about 10 to 20 percent.
Dell Precision 7750
I tested out the battery life of the 7750 on the four different modes. In the best performance mode, I did set this power scheme to ultra-performance in the power manager and it managed to and put the computer on 100% load including the GPU as well and managed to get an hour of battery life, that’s not too bad considering this bright screen brightness was at 100% as well. I changed the thermal management to optimize mode but I kept the load to 100% with the GPU and in better performance mode, it managed to get about 1.5 hours. For the better battery life mode, I did change the load from 100 to 50 percent for the CPU and GPU, and it managed to get three hours, and in battery saving mode, I did drop the screen brightness from 100% down at 50, and it managed to get 3.5 hours.
I’ve tested these conditions with a very constant load at those percentages and you’ll probably get a little bit more because your workload more than likely go up and down all the time, so you won’t be driving the processor and GPU like I would have been doing.
WHICH TO BUY?
The Dell Precision 7740’s thermal and performance are really good. For the price you pay, it really gives good features and performance as a mobile workstation. The thermals on this Precision 7750 are fantastic. I haven’t seen another laptop that actually has better thermals than the Dell Precision 7750. So, you have to decide which one you want to buy considering the features, performance, and price range. The price range of these laptops is a bit different.
Expert reviews of Dell Precision 7740:
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Expert reviews of Dell Precision 7750:
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