Radeon HD 7620G vs GeForce GT 640 Rev. 2

Aggregate performance score

We've compared GeForce GT 640 Rev. 2 with Radeon HD 7620G, including specs and performance data.

GT 640 Rev. 2
2013, $89
1 GB GDDR5, 49 Watt
3.26
+284%

640 Rev. 2 outperforms HD 7620G by a whopping 284% based on our aggregate benchmark results.

Primary details

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

Place in the ranking7861189
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.19no data
Power efficiency5.152.63
ArchitectureKepler 2.0 (2013−2015)TeraScale 3 (2010−2013)
GPU code nameGK208Devastator
Market segmentDesktopLaptop
Release date29 May 2013 (12 years ago)15 May 2012 (13 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

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 cores384384
Core clock speed1046 MHz360 MHz
Boost clock speedno data497 MHz
Number of transistors915 million1,303 million
Manufacturing process technology28 nm32 nm
Power consumption (TDP)49 Watt25 Watt
Texture fill rate33.4711.93
Floating-point processing power0.8033 TFLOPS0.3817 TFLOPS
ROPs88
TMUs3224
L1 Cache32 KBno data
L2 Cache128 KBno data

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 x8IGP
Length145 mmno data
Width1-slotno data
Supplementary power connectorsNoneno data

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 typeGDDR5System Shared
Maximum RAM amount1 GBSystem Shared
Memory bus width64 BitSystem Shared
Memory clock speed1252 MHzSystem Shared
Memory bandwidth40.06 GB/sno data
Shared memory-+

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)11.2 (11_0)
Shader Model5.15.0
OpenGL4.64.4
OpenCL1.21.2
Vulkan1.1.126N/A
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 HD140−150
+278%
37
−278%

Cost per frame, $

1080p0.64no data

FPS performance in popular games

Full HD
Low

Cyberpunk 2077 2−3
+0%
2−3
+0%

Full HD
Medium

Cyberpunk 2077 2−3
+0%
2−3
+0%
Escape from Tarkov 1−2
+0%
1−2
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Fortnite 0−1 0−1
Forza Horizon 4 6−7
+0%
6−7
+0%
Forza Horizon 5 0−1 0−1
PLAYERUNKNOWN'S BATTLEGROUNDS 8−9
+0%
8−9
+0%
Valorant 30−33
+0%
30−33
+0%

Full HD
High

Counter-Strike: Global Offensive 21−24
+0%
21−24
+0%
Cyberpunk 2077 2−3
+0%
2−3
+0%
Dota 2 14−16
+0%
14−16
+0%
Escape from Tarkov 1−2
+0%
1−2
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Fortnite 0−1 0−1
Forza Horizon 4 6−7
+0%
6−7
+0%
Forza Horizon 5 0−1 0−1
Metro Exodus 1−2
+0%
1−2
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 8−9
+0%
8−9
+0%
The Witcher 3: Wild Hunt 6−7
+0%
6−7
+0%
Valorant 30−33
+0%
30−33
+0%

Full HD
Ultra

Cyberpunk 2077 2−3
+0%
2−3
+0%
Dota 2 14−16
+0%
14−16
+0%
Escape from Tarkov 1−2
+0%
1−2
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Forza Horizon 4 6−7
+0%
6−7
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 8−9
+0%
8−9
+0%
The Witcher 3: Wild Hunt 6−7
+0%
6−7
+0%
Valorant 30−33
+0%
30−33
+0%

Full HD
Epic

Fortnite 0−1 0−1

1440p
High

Counter-Strike 2 3−4
+0%
3−4
+0%
Counter-Strike: Global Offensive 5−6
+0%
5−6
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 9−10
+0%
9−10
+0%

1440p
Ultra

Cyberpunk 2077 0−1 0−1
Escape from Tarkov 3−4
+0%
3−4
+0%
Far Cry 5 0−1 0−1
Forza Horizon 4 2−3
+0%
2−3
+0%
The Witcher 3: Wild Hunt 2−3
+0%
2−3
+0%

1440p
Epic

Fortnite 1−2
+0%
1−2
+0%

4K
High

Grand Theft Auto V 14−16
+0%
14−16
+0%
Valorant 4−5
+0%
4−5
+0%

4K
Ultra

PLAYERUNKNOWN'S BATTLEGROUNDS 2−3
+0%
2−3
+0%

4K
Epic

Fortnite 2−3
+0%
2−3
+0%

This is how GT 640 Rev. 2 and HD 7620G compete in popular games:

  • GT 640 Rev. 2 is 278% faster in 1080p

All in all, in popular games:

  • there's a draw in 36 tests (100%)

Pros & cons summary


Performance score 3.26 0.85
Recency 29 May 2013 15 May 2012
Chip lithography 28 nm 32 nm
Power consumption (TDP) 49 Watt 25 Watt

GT 640 Rev. 2 has a 283.5% higher aggregate performance score, an age advantage of 1 year, and a 14.3% more advanced lithography process.

HD 7620G, on the other hand, has 96% lower power consumption.

The GeForce GT 640 Rev. 2 is our recommended choice as it beats the Radeon HD 7620G in performance tests.

Be aware that GeForce GT 640 Rev. 2 is a desktop graphics card while Radeon HD 7620G is a notebook one.

Vote for your favorite

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NVIDIA GeForce GT 640 Rev. 2
GeForce GT 640 Rev. 2
AMD Radeon HD 7620G
Radeon HD 7620G

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.


3.7 34 votes

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2.9 21 votes

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