GeForce RTX 3080 vs GT 640

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Aggregate performance score

We've compared GeForce GT 640 and GeForce RTX 3080, covering specs and all relevant benchmarks.

GT 640
2012
2 GB DDR3, 65 Watt
3.05

RTX 3080 outperforms GT 640 by a whopping 2044% based on our aggregate benchmark results.

Primary details

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

Place in the ranking76126
Place by popularitynot in top-10087
Cost-effectiveness evaluation0.2046.20
Power efficiency3.3914.74
ArchitectureKepler (2012−2018)Ampere (2020−2024)
GPU code nameGK107GA102
Market segmentDesktopDesktop
Release date5 June 2012 (12 years ago)1 September 2020 (4 years ago)
Launch price (MSRP)$99 $699

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RTX 3080 has 23000% 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 cores3848704
Core clock speed902 MHz1440 MHz
Boost clock speedno data1710 MHz
Number of transistors1,270 million28,300 million
Manufacturing process technology28 nm8 nm
Power consumption (TDP)65 Watt320 Watt
Texture fill rate28.86465.1
Floating-point processing power0.6927 TFLOPS29.77 TFLOPS
ROPs1696
TMUs32272
Tensor Coresno data272
Ray Tracing Coresno data68

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).

InterfacePCIe 3.0 x16PCIe 4.0 x16
Length145 mm285 mm
Width1-slot2-slot
Supplementary power connectorsNone1x 12-pin

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 typeDDR3GDDR6X
Maximum RAM amount2 GB10 GB
Memory bus width128 Bit320 Bit
Memory clock speed891 MHz1188 MHz
Memory bandwidth28.51 GB/s760.3 GB/s
Shared memoryno 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 Connectors1x DVI, 1x HDMI, 1x DisplayPort1x HDMI, 3x DisplayPort
HDMI++

API compatibility

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

DirectX12 (11_0)12 Ultimate (12_2)
Shader Model5.16.5
OpenGL4.64.6
OpenCL1.22.0
Vulkan1.1.1261.2
CUDA3.08.5

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.

GT 640 3.05
RTX 3080 65.38
+2044%

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.

GT 640 1176
RTX 3080 25228
+2045%

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.

GT 640 1560
RTX 3080 39257
+2416%

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.

GT 640 3731
RTX 3080 167014
+4376%

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.

GT 640 3683
RTX 3080 145176
+3842%

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.

GT 640 2853
RTX 3080 202162
+6986%

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 HD7−8
−2286%
167
+2286%
1440p5−6
−2400%
125
+2400%
4K4−5
−2050%
86
+2050%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 120−130
+0%
120−130
+0%

Full HD
Medium Preset

Assassin's Creed Odyssey 130−140
+0%
130−140
+0%
Assassin's Creed Valhalla 111
+0%
111
+0%
Battlefield 5 200−210
+0%
200−210
+0%
Call of Duty: Modern Warfare 110−120
+0%
110−120
+0%
Cyberpunk 2077 138
+0%
138
+0%
Far Cry 5 110−120
+0%
110−120
+0%
Far Cry New Dawn 150−160
+0%
150−160
+0%
Forza Horizon 4 230−240
+0%
230−240
+0%
Hitman 3 116
+0%
116
+0%
Horizon Zero Dawn 240−250
+0%
240−250
+0%
Metro Exodus 144
+0%
144
+0%
Red Dead Redemption 2 131
+0%
131
+0%
Shadow of the Tomb Raider 270−280
+0%
270−280
+0%
Watch Dogs: Legion 248
+0%
248
+0%

Full HD
High Preset

Assassin's Creed Odyssey 130−140
+0%
130−140
+0%
Assassin's Creed Valhalla 96
+0%
96
+0%
Battlefield 5 200−210
+0%
200−210
+0%
Call of Duty: Modern Warfare 110−120
+0%
110−120
+0%
Cyberpunk 2077 134
+0%
134
+0%
Far Cry 5 110−120
+0%
110−120
+0%
Far Cry New Dawn 150−160
+0%
150−160
+0%
Forza Horizon 4 230−240
+0%
230−240
+0%
Hitman 3 118
+0%
118
+0%
Horizon Zero Dawn 240−250
+0%
240−250
+0%
Metro Exodus 144
+0%
144
+0%
Red Dead Redemption 2 120−130
+0%
120−130
+0%
Shadow of the Tomb Raider 326
+0%
326
+0%
The Witcher 3: Wild Hunt 130−140
+0%
130−140
+0%
Watch Dogs: Legion 238
+0%
238
+0%

Full HD
Ultra Preset

Assassin's Creed Odyssey 130−140
+0%
130−140
+0%
Assassin's Creed Valhalla 88
+0%
88
+0%
Call of Duty: Modern Warfare 110−120
+0%
110−120
+0%
Cyberpunk 2077 131
+0%
131
+0%
Far Cry 5 110−120
+0%
110−120
+0%
Forza Horizon 4 230−240
+0%
230−240
+0%
Hitman 3 110
+0%
110
+0%
Horizon Zero Dawn 182
+0%
182
+0%
Shadow of the Tomb Raider 287
+0%
287
+0%
The Witcher 3: Wild Hunt 149
+0%
149
+0%
Watch Dogs: Legion 101
+0%
101
+0%

Full HD
Epic Preset

Red Dead Redemption 2 131
+0%
131
+0%

1440p
High Preset

Battlefield 5 150−160
+0%
150−160
+0%
Far Cry New Dawn 100−110
+0%
100−110
+0%

1440p
Ultra Preset

Assassin's Creed Odyssey 75−80
+0%
75−80
+0%
Assassin's Creed Valhalla 76
+0%
76
+0%
Call of Duty: Modern Warfare 75−80
+0%
75−80
+0%
Cyberpunk 2077 86
+0%
86
+0%
Far Cry 5 75−80
+0%
75−80
+0%
Forza Horizon 4 270−280
+0%
270−280
+0%
Hitman 3 112
+0%
112
+0%
Horizon Zero Dawn 151
+0%
151
+0%
Metro Exodus 107
+0%
107
+0%
Shadow of the Tomb Raider 219
+0%
219
+0%
The Witcher 3: Wild Hunt 110−120
+0%
110−120
+0%
Watch Dogs: Legion 247
+0%
247
+0%

1440p
Epic Preset

Red Dead Redemption 2 130
+0%
130
+0%

4K
High Preset

Battlefield 5 75−80
+0%
75−80
+0%
Far Cry New Dawn 65−70
+0%
65−70
+0%
Hitman 3 57
+0%
57
+0%
Horizon Zero Dawn 220−230
+0%
220−230
+0%
Metro Exodus 142
+0%
142
+0%
The Witcher 3: Wild Hunt 115
+0%
115
+0%

4K
Ultra Preset

Assassin's Creed Odyssey 50−55
+0%
50−55
+0%
Assassin's Creed Valhalla 52
+0%
52
+0%
Call of Duty: Modern Warfare 45−50
+0%
45−50
+0%
Cyberpunk 2077 43
+0%
43
+0%
Far Cry 5 45−50
+0%
45−50
+0%
Forza Horizon 4 100−110
+0%
100−110
+0%
Shadow of the Tomb Raider 135
+0%
135
+0%
Watch Dogs: Legion 54
+0%
54
+0%

4K
Epic Preset

Red Dead Redemption 2 95
+0%
95
+0%

This is how GT 640 and RTX 3080 compete in popular games:

  • RTX 3080 is 2286% faster in 1080p
  • RTX 3080 is 2400% faster in 1440p
  • RTX 3080 is 2050% faster in 4K

All in all, in popular games:

  • there's a draw in 72 tests (100%)

Pros & cons summary


Performance score 3.05 65.38
Recency 5 June 2012 1 September 2020
Maximum RAM amount 2 GB 10 GB
Chip lithography 28 nm 8 nm
Power consumption (TDP) 65 Watt 320 Watt

GT 640 has 392.3% lower power consumption.

RTX 3080, on the other hand, has a 2043.6% higher aggregate performance score, an age advantage of 8 years, a 400% higher maximum VRAM amount, and a 250% more advanced lithography process.

The GeForce RTX 3080 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

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NVIDIA GeForce GT 640
GeForce GT 640
NVIDIA GeForce RTX 3080
GeForce RTX 3080

Comparisons with similar GPUs

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.


3.4 1535 votes

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4.2 5838 votes

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Questions & comments

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