Radeon R4 (Stoney Ridge) vs HD 7640G

Aggregate performance score

We've compared Radeon HD 7640G and Radeon R4 (Stoney Ridge), covering specs and all relevant benchmarks.

HD 7640G
2012
35 Watt
1.19
+1.7%

HD 7640G outperforms R4 (Stoney Ridge) by a minimal 2% based on our aggregate benchmark results.

Primary details

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

Place in the ranking10601070
Place by popularitynot in top-100not in top-100
Power efficiency2.335.34
ArchitectureTeraScale 3 (2010−2013)GCN 1.2/2.0 (2015−2016)
GPU code nameDevastator LiteStoney Ridge
Market segmentLaptopLaptop
Release date15 May 2012 (12 years ago)1 June 2016 (8 years ago)

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 cores256192
Core clock speed496 MHzno data
Boost clock speed685 MHz600 MHz
Number of transistors1,303 millionno data
Manufacturing process technology32 nm28 nm
Power consumption (TDP)35 Watt15 Watt
Texture fill rate10.96no data
Floating-point processing power0.3507 TFLOPSno data
ROPs8no data
TMUs16no 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 sizemedium sizedno data
InterfaceIGPno 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 typeSystem Sharedno data
Maximum RAM amountSystem Sharedno data
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Sharedno data
Shared memory++

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 ConnectorsNo outputsno data

API compatibility

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

DirectX11.2 (11_0)12 (FL 12_0)
Shader Model5.0no data
OpenGL4.4no data
OpenCL1.2no data
VulkanN/A-

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.

HD 7640G 1.19
+1.7%
R4 (Stoney Ridge) 1.17

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

HD 7640G 656
R4 (Stoney Ridge) 973
+48.4%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

HD 7640G 2599
+2.2%
R4 (Stoney Ridge) 2542

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 HD9−10
+0%
9
+0%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 3−4
+0%
3−4
+0%

Full HD
Medium Preset

Assassin's Creed Odyssey 5−6
+0%
5−6
+0%
Call of Duty: Modern Warfare 4−5
+0%
4−5
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Far Cry New Dawn 3−4
+0%
3−4
+0%
Forza Horizon 4 1−2
+0%
1−2
+0%
Hitman 3 6−7
+0%
6−7
+0%
Horizon Zero Dawn 14−16
+0%
14−16
+0%
Red Dead Redemption 2 2−3
−150%
5
+150%
Shadow of the Tomb Raider 8−9
+0%
8−9
+0%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
High Preset

Assassin's Creed Odyssey 5−6
+0%
5−6
+0%
Call of Duty: Modern Warfare 4−5
+0%
4−5
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Far Cry New Dawn 3−4
+0%
3−4
+0%
Forza Horizon 4 1−2
+0%
1−2
+0%
Hitman 3 6−7
+0%
6−7
+0%
Horizon Zero Dawn 14−16
+0%
14−16
+0%
Red Dead Redemption 2 2−3
+0%
2−3
+0%
Shadow of the Tomb Raider 8−9
+0%
8−9
+0%
The Witcher 3: Wild Hunt 10−12
+0%
10−12
+0%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
Ultra Preset

Assassin's Creed Odyssey 5−6
+0%
5−6
+0%
Call of Duty: Modern Warfare 4−5
+0%
4−5
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Forza Horizon 4 1−2
+0%
1−2
+0%
Hitman 3 6−7
+0%
6−7
+0%
Horizon Zero Dawn 14−16
+0%
14−16
+0%
Shadow of the Tomb Raider 8−9
+0%
8−9
+0%
The Witcher 3: Wild Hunt 10−12
+0%
10−12
+0%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
Epic Preset

Red Dead Redemption 2 2−3
+0%
2−3
+0%

1440p
High Preset

Battlefield 5 1−2
+0%
1−2
+0%
Far Cry New Dawn 2−3
+0%
2−3
+0%

1440p
Ultra Preset

Assassin's Creed Odyssey 1−2
+0%
1−2
+0%
Call of Duty: Modern Warfare 0−1 0−1
Cyberpunk 2077 1−2
+0%
1−2
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Hitman 3 7−8
+0%
7−8
+0%
Horizon Zero Dawn 4−5
+0%
4−5
+0%
The Witcher 3: Wild Hunt 0−1 0−1
Watch Dogs: Legion 5−6
+0%
5−6
+0%

1440p
Epic Preset

Red Dead Redemption 2 4−5
+0%
4−5
+0%

4K
High Preset

Far Cry New Dawn 0−1 0−1

4K
Ultra Preset

Assassin's Creed Odyssey 1−2
+0%
1−2
+0%
Assassin's Creed Valhalla 1−2
+0%
1−2
+0%
Call of Duty: Modern Warfare 0−1 0−1
Far Cry 5 0−1 0−1

4K
Epic Preset

Red Dead Redemption 2 2−3
+0%
2−3
+0%

This is how HD 7640G and R4 (Stoney Ridge) compete in popular games:

  • A tie in 1080p

Here's the range of performance differences observed across popular games:

  • in Red Dead Redemption 2, with 1080p resolution and the Medium Preset, the R4 (Stoney Ridge) is 150% faster.

All in all, in popular games:

  • R4 (Stoney Ridge) is ahead in 1 test (2%)
  • there's a draw in 46 tests (98%)

Pros & cons summary


Performance score 1.19 1.17
Recency 15 May 2012 1 June 2016
Chip lithography 32 nm 28 nm
Power consumption (TDP) 35 Watt 15 Watt

HD 7640G has a 1.7% higher aggregate performance score.

R4 (Stoney Ridge), on the other hand, has an age advantage of 4 years, a 14.3% more advanced lithography process, and 133.3% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Radeon HD 7640G and Radeon R4 (Stoney Ridge).


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

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AMD Radeon HD 7640G
Radeon HD 7640G
AMD Radeon R4 (Stoney Ridge)
Radeon R4 (Stoney Ridge)

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.


2.9 166 votes

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2.9 123 votes

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Questions & comments

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