GeForce GT 640 vs GTX 1080

#ad 
Buy on Amazon
VS

Aggregate performance score

We've compared GeForce GTX 1080 and GeForce GT 640, covering specs and all relevant benchmarks.

GTX 1080
2016
8 GB GDDR5X, 180 Watt
40.46
+1222%

GTX 1080 outperforms GT 640 by a whopping 1222% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking103770
Place by popularity63not in top-100
Cost-effectiveness evaluation19.600.20
Power efficiency15.513.25
ArchitecturePascal (2016−2021)Kepler (2012−2018)
GPU code nameGP104GK107
Market segmentDesktopDesktop
Release date27 May 2016 (8 years ago)5 June 2012 (12 years ago)
Launch price (MSRP)$599 $99

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

GTX 1080 has 9700% better value for money than GT 640.

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores2560384
Core clock speed1607 MHz902 MHz
Boost clock speed1733 MHzno data
Number of transistors7,200 million1,270 million
Manufacturing process technology16 nm28 nm
Power consumption (TDP)180 Watt65 Watt
Maximum GPU temperature94 °Cno data
Texture fill rate277.328.86
Floating-point processing power8.873 TFLOPS0.6927 TFLOPS
ROPs6416
TMUs16032

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus supportPCIe 3.0no data
InterfacePCIe 3.0 x16PCIe 3.0 x16
Length267 mm145 mm
Height4.376" (11.1 cm)no data
Width2-slot1-slot
Recommended system power (PSU)500 Wattno data
Supplementary power connectors1x 8-pinNone
SLI options+-

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5XDDR3
Maximum RAM amount8 GB2 GB
Memory bus width256 Bit128 Bit
Memory clock speed10 GB/s891 MHz
Memory bandwidth320 GB/s28.51 GB/s
Shared memory-no data

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsDP 1.42, HDMI 2.0b, DL-DVI1x DVI, 1x HDMI, 1x DisplayPort
Multi monitor support+no data
HDMI++
G-SYNC support+-

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

GPU Boost3.0no data
VR Ready+no data
Ansel+no data

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_1)12 (11_0)
Shader Model6.45.1
OpenGL4.54.6
OpenCL1.21.2
Vulkan1.2.1311.1.126
CUDA+3.0

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GTX 1080 40.46
+1222%
GT 640 3.06

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

GTX 1080 15559
+1223%
GT 640 1176

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

GTX 1080 21409
+1272%
GT 640 1560

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

GTX 1080 55528
+1381%
GT 640 3750

GeekBench 5 Vulkan

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses Vulkan API by AMD & Khronos Group.

GTX 1080 65209
+1671%
GT 640 3683

GeekBench 5 CUDA

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses CUDA API by NVIDIA.

GTX 1080 51531
+1706%
GT 640 2853

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD126
+1300%
9−10
−1300%
1440p75
+1400%
5−6
−1400%
4K60
+1400%
4−5
−1400%

Cost per frame, $

1080p4.75
+131%
11.00
−131%
1440p7.99
+148%
19.80
−148%
4K9.98
+148%
24.75
−148%
  • GTX 1080 has 131% lower cost per frame in 1080p
  • GTX 1080 has 148% lower cost per frame in 1440p
  • GTX 1080 has 148% lower cost per frame in 4K

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2 85−90
+1317%
6−7
−1317%
Cyberpunk 2077 85−90
+1350%
6−7
−1350%
Elden Ring 140−150
+1330%
10−11
−1330%

Full HD
Medium Preset

Battlefield 5 84
+1300%
6−7
−1300%
Counter-Strike 2 85−90
+1317%
6−7
−1317%
Cyberpunk 2077 85−90
+1350%
6−7
−1350%
Forza Horizon 4 190−200
+1314%
14−16
−1314%
Metro Exodus 111
+1288%
8−9
−1288%
Red Dead Redemption 2 114
+1325%
8−9
−1325%
Valorant 160−170
+1250%
12−14
−1250%

Full HD
High Preset

Battlefield 5 130
+1344%
9−10
−1344%
Counter-Strike 2 85−90
+1317%
6−7
−1317%
Cyberpunk 2077 85−90
+1350%
6−7
−1350%
Dota 2 113
+1313%
8−9
−1313%
Elden Ring 140−150
+1330%
10−11
−1330%
Far Cry 5 75
+1400%
5−6
−1400%
Fortnite 158
+1480%
10−11
−1480%
Forza Horizon 4 190−200
+1314%
14−16
−1314%
Grand Theft Auto V 119
+1222%
9−10
−1222%
Metro Exodus 83
+1283%
6−7
−1283%
PLAYERUNKNOWN'S BATTLEGROUNDS 242
+1244%
18−20
−1244%
Red Dead Redemption 2 53
+1225%
4−5
−1225%
The Witcher 3: Wild Hunt 142
+1320%
10−11
−1320%
Valorant 160−170
+1250%
12−14
−1250%
World of Tanks 272
+1411%
18−20
−1411%

Full HD
Ultra Preset

Battlefield 5 73
+1360%
5−6
−1360%
Counter-Strike 2 47
+1467%
3−4
−1467%
Cyberpunk 2077 85−90
+1350%
6−7
−1350%
Dota 2 100
+1329%
7−8
−1329%
Far Cry 5 179
+1392%
12−14
−1392%
Forza Horizon 4 190−200
+1314%
14−16
−1314%
PLAYERUNKNOWN'S BATTLEGROUNDS 88
+1367%
6−7
−1367%
Valorant 160−170
+1250%
12−14
−1250%

1440p
High Preset

Dota 2 72
+1340%
5−6
−1340%
Elden Ring 80−85
+1283%
6−7
−1283%
Grand Theft Auto V 72
+1340%
5−6
−1340%
PLAYERUNKNOWN'S BATTLEGROUNDS 170−180
+1358%
12−14
−1358%
Red Dead Redemption 2 35
+1650%
2−3
−1650%
World of Tanks 250−260
+1322%
18−20
−1322%

1440p
Ultra Preset

Battlefield 5 72
+1340%
5−6
−1340%
Counter-Strike 2 28
+1300%
2−3
−1300%
Cyberpunk 2077 40−45
+1300%
3−4
−1300%
Far Cry 5 118
+1375%
8−9
−1375%
Forza Horizon 4 110−120
+1375%
8−9
−1375%
Metro Exodus 82
+1267%
6−7
−1267%
The Witcher 3: Wild Hunt 70−75
+1320%
5−6
−1320%
Valorant 120−130
+1333%
9−10
−1333%

4K
High Preset

Counter-Strike 2 40−45
+1300%
3−4
−1300%
Dota 2 74
+1380%
5−6
−1380%
Elden Ring 40−45
+1233%
3−4
−1233%
Grand Theft Auto V 74
+1380%
5−6
−1380%
Metro Exodus 28
+1300%
2−3
−1300%
PLAYERUNKNOWN'S BATTLEGROUNDS 106
+1225%
8−9
−1225%
Red Dead Redemption 2 21
+2000%
1−2
−2000%
The Witcher 3: Wild Hunt 74
+1380%
5−6
−1380%

4K
Ultra Preset

Battlefield 5 42
+1300%
3−4
−1300%
Counter-Strike 2 40−45
+1300%
3−4
−1300%
Cyberpunk 2077 18−20
+1700%
1−2
−1700%
Dota 2 129
+1333%
9−10
−1333%
Far Cry 5 59
+1375%
4−5
−1375%
Fortnite 54
+1250%
4−5
−1250%
Forza Horizon 4 65−70
+1240%
5−6
−1240%
Valorant 65−70
+1260%
5−6
−1260%

This is how GTX 1080 and GT 640 compete in popular games:

  • GTX 1080 is 1300% faster in 1080p
  • GTX 1080 is 1400% faster in 1440p
  • GTX 1080 is 1400% faster in 4K

Pros & cons summary


Performance score 40.46 3.06
Recency 27 May 2016 5 June 2012
Maximum RAM amount 8 GB 2 GB
Chip lithography 16 nm 28 nm
Power consumption (TDP) 180 Watt 65 Watt

GTX 1080 has a 1222.2% higher aggregate performance score, an age advantage of 3 years, a 300% higher maximum VRAM amount, and a 75% more advanced lithography process.

GT 640, on the other hand, has 176.9% lower power consumption.

The GeForce GTX 1080 is our recommended choice as it beats the GeForce GT 640 in performance tests.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA GeForce GTX 1080
GeForce GTX 1080
NVIDIA GeForce GT 640
GeForce GT 640

Other comparisons

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.3 5519 votes

Rate GeForce GTX 1080 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.4 1596 votes

Rate GeForce GT 640 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.