Radeon RX 6800S vs GeForce GT 640 Rev. 2

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630 Rev. 2 630 Rev. 2 PCIe x8 635 OEM 640 OEM 640 OEM Rebrand 640 Rev. 2 710
VS
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6600M 6600S 6650M 6650M XT 6700S 6800S

Aggregate performance score

We've compared GeForce GT 640 Rev. 2 with Radeon RX 6800S, including specs and performance data.

GT 640 Rev. 2
2013, $89
1 GB GDDR5, 49 Watt
3.29

6800S outperforms 640 Rev. 2 by a whopping 1033% based on our aggregate benchmark results.

Contents

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GT 640 Rev. 2 GT 640 Rev. 2
RX 6800S RX 6800S

Primary details

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

Place in the ranking806144
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.19no data
Power efficiency5.2329.03
ArchitectureKepler 2.0 (2013−2015)RDNA 2.0 (2020−2025)
GPU code nameGK208Navi 23
Market segmentDesktopLaptop
Release date29 May 2013 (13 years ago)4 January 2022 (4 years ago)
Launch price (MSRP)$89 no data

Cost-effectiveness evaluation

The higher the ratio, the better. We use the manufacturer's recommended prices.

no data

Performance to price scatter graph

Currently popular graphics cards are shown for comparison.

Detailed specifications

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

Pipelines / CUDA cores3842048
Core clock speed1046 MHz1800 MHz
Boost clock speedno data2100 MHz
Number of transistors915 million11,060 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)49 Watt100 Watt
Texture fill rate33.47268.8
Floating-point processing power0.8033 TFLOPS8.602 TFLOPS
ROPs864
TMUs32128
Ray Tracing Coresno data32
L0 Cacheno data512 KB
L1 Cache32 KB512 KB
L2 Cache128 KB2 MB
L3 Cacheno data32 MB

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).

Laptop sizeno datamedium sized
InterfacePCIe 2.0 x8PCIe 4.0 x8
Length145 mmno data
Width1-slotno data
Supplementary power connectorsNoneNone

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 typeGDDR5GDDR6
Maximum RAM amount1 GB8 GB
Memory bus width64 Bit128 Bit
Memory clock speed1252 MHz2000 MHz
Memory bandwidth40.06 GB/s256.0 GB/s
Shared memory--
Resizable BAR-+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors1x DVI, 1x HDMI, 1x VGANo outputs
HDMI+-

API and SDK support

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
OpenCL1.22.1
Vulkan1.1.1261.3
CUDA3.5-

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 HD10−12116
+1060%
1440p6−775
+1150%
4K3−440
+1233%

Cost per frame, $

1080p8.90no data
1440p14.83no data
4K29.67no data

FPS performance in popular games

Full HD
Low

Atomic Heart 110−120 110−120
Counter-Strike 2 200−210 200−210
Cyberpunk 2077 141 141

Full HD
Medium

Atomic Heart 110−120 110−120
Battlefield 5 130−140 130−140
Counter-Strike 2 200−210 200−210
Cyberpunk 2077 111 111
Far Cry 5 120 120
Fortnite 160−170 160−170
Forza Horizon 4 140−150 140−150
PLAYERUNKNOWN'S BATTLEGROUNDS 150−160 150−160
Valorant 220−230 220−230

Full HD
High

Atomic Heart 110−120 110−120
Battlefield 5 130−140 130−140
Counter-Strike 2 200−210 200−210
Counter-Strike: Global Offensive 270−280 270−280
Cyberpunk 2077 82 82
Dota 2 128 128
Far Cry 5 112 112
Far Cry 6 107 107
Fortnite 160−170 160−170
Forza Horizon 4 140−150 140−150
Grand Theft Auto V 125 125
Metro Exodus 90−95 90−95
PLAYERUNKNOWN'S BATTLEGROUNDS 150−160 150−160
The Witcher 3: Wild Hunt 164 164
Valorant 220−230 220−230

Full HD
Ultra

Battlefield 5 130−140 130−140
Cyberpunk 2077 74 74
Dota 2 107 107
Far Cry 5 104 104
Forza Horizon 4 140−150 140−150
PLAYERUNKNOWN'S BATTLEGROUNDS 150−160 150−160
The Witcher 3: Wild Hunt 92 92
Valorant 214 214

Full HD
Epic

Fortnite 160−170 160−170

1440p
High

Counter-Strike 2 95−100 95−100
Counter-Strike: Global Offensive 260−270 260−270
Far Cry 6 72 72
Grand Theft Auto V 66 66
Metro Exodus 55−60 55−60
PLAYERUNKNOWN'S BATTLEGROUNDS 170−180 170−180
Valorant 260−270 260−270

1440p
Ultra

Battlefield 5 95−100 95−100
Cyberpunk 2077 39 39
Far Cry 5 90−95 90−95
Forza Horizon 4 100−110 100−110
The Witcher 3: Wild Hunt 70−75 70−75

1440p
Epic

Fortnite 100−105 100−105

4K
High

Atomic Heart 30−33 30−33
Counter-Strike 2 40−45 40−45
Far Cry 6 30−33 30−33
Grand Theft Auto V 80−85 80−85
Metro Exodus 30−35 30−35
The Witcher 3: Wild Hunt 60−65 60−65
Valorant 230−240 230−240

4K
Ultra

Battlefield 5 60−65 60−65
Counter-Strike 2 40−45 40−45
Cyberpunk 2077 16 16
Dota 2 100−110 100−110
Far Cry 5 50−55 50−55
Forza Horizon 4 70−75 70−75
PLAYERUNKNOWN'S BATTLEGROUNDS 50−55 50−55

4K
Epic

Fortnite 45−50 45−50

This is how GT 640 Rev. 2 and RX 6800S compete in popular games:

  • RX 6800S is 1060% faster in 1080p
  • RX 6800S is 1150% faster in 1440p
  • RX 6800S is 1233% faster in 4K

All in all, in popular games:

  • there's a draw in 64 tests (100%)

Pros & cons summary

Performance score 3.29 37.27
Recency 29 May 2013 4 January 2022
Maximum RAM amount 1 GB 8 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 49 Watt 100 Watt

GT 640 Rev. 2 has 51% lower power consumption.

RX 6800S, on the other hand, has a 1033% higher aggregate performance score, an age advantage of 8 years, a 700% higher maximum VRAM amount, and a 75% more advanced lithography process.

The Radeon RX 6800S is our recommended choice as it beats the GeForce GT 640 Rev. 2 in performance tests.

Be aware that GeForce GT 640 Rev. 2 is a desktop graphics card while Radeon RX 6800S is a notebook one.

Other comparisons

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

GT 640 Rev. 2 GeForce GT 640 Rev. 2
vs
ATI HD 4870 Radeon HD 4870
RX 6800S Radeon RX 6800S
vs
RX 7600S Radeon RX 7600S
GT 640 Rev. 2 GeForce GT 640 Rev. 2
vs
GTS 450 GeForce GTS 450
GTX 770 GTX 770
vs
NVS 420 NVS 420
GTX 770 GTX 770
vs
Arc B570 Arc B570
GT 630 Rev. 2 PCIe x8 GT 630 Rev. 2 PCIe x8
vs
GT 120 Mac Edition GT 120 Mac Edition
GT 630 Rev. 2 PCIe x8 GT 630 Rev. 2 PCIe x8
vs
520 Mobile GDDR5 520 Mobile GDDR5
GT 630 Rev. 2 PCIe x8 GT 630 Rev. 2 PCIe x8
vs
RTX 5090 RTX 5090
GTX 780 GTX 780
vs
HD 7640G + HD 7610M Dual Graphics HD 7640G + HD 7610M Dual Graphics
GTX 780 GTX 780
vs
Tesla P40 Tesla P40
GTX 780 GTX 780
vs
ATI V9800 V9800
GTX 780 GTX 780
vs
FX 1500 FX 1500
GTX 780 GTX 780
vs
RX 560X RX 560X

Community ratings

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

3.8 37 votes

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3.9 187 votes

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Comments

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