AMD Radeon HD 7620G vs AMD Radeon HD 7640G

AMD Radeon HD 7620G

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The AMD Radeon HD 7620G or HD7620G is a processor graphics card in the Trinity APUs from AMD. It is built into the low voltage 25 Watt  A10 versions (e.g. A10-4655M) and offers all 384 Radeon cores. However, the base and Turbo clock rate was reduced from 497/686 in the 7660G to 360/497 MHz in the 7620G. The architecture is based on the VLIW4 architecture of the Radeon HD 6900 series desktop graphics card and doesn't offer a dedicated graphics memory.

Trinity got its name due to the fact that it consists out of three different architecture parts. The CPU cores are based on the Piledriver architecture (Bulldozer successor), the GPU cores on Northern Islands GPU cores (HD 6900 desktop series) and the video processing engine and multi-display connectivity from the new Southern Islands GPU architecture (HD 7900 series).

The integrated UVD3 video decoder (Avivo HD) allows the full decoding of Multi-View Codec (MVC), MPEG-4 Part 2 (DivX, xVid), MPEG-4 AVC/H.264 and Adobe Flash HD videos.

The performance (with dual channel memory) is in the mid range of HD 6500M series cards. Most games of 2012/2013 will only run fluently in (very) low settings.

The APU is still manufactured in 32nm and, as the low voltage parts are clasified at 25 Watt, good suited for small laptops (but not ultrathin, as the HD 7500G is intended for these subnotebooks).

AMD Radeon HD 7640G

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The AMD Radeon HD 7640G or HD7640G is a processor graphics card in the Trinity APUs from AMD. It is the second fastest version and is featured only in the A8 series. It is based on the VLIW4 architecture of the Radeon HD 6900 series desktop graphics card and doesn't offer a dedicated graphics memory.

Trinity got its name due to the fact that it consists out of three different architecture parts. The CPU cores are based on the Piledriver architecture (Bulldozer successor), the GPU cores on Northern Islands GPU cores (HD 6900 desktop series) and the video processing engine and multi-display connectivity from the new Southern Islands GPU architecture (HD 7900 series).

The integrated UVD3 video decoder (Avivo HD) allows the full decoding of Multi-View Codec (MVC), MPEG-4 Part 2 (DivX, xVid), MPEG-4 AVC/H.264 and Adobe Flash HD videos.

The performance is in the mid range of HD 6000M series cards similar or slower than the AMD Radeon HD 6630M (see for benchmarks). Therefore, the graphics card is a bit faster than the Intel HD Graphics 4000 in Ivy Bridge CPUs.

The APU is still manufactured in 32nm and as most A8 series parts should be classified with a 35 Watt TDP, the HD 7640G is best suited for laptops of 13-14-inch an up.

AMD Radeon HD 7620GAMD Radeon HD 7640G
ManufacturerAMDAMD
Radeon HD 7000G Series
Radeon HD 7660G (compare) 384 @ 497 - 686 (Boost) MHz
Radeon HD 7620G 384 @ 360 - 497 (Boost) MHz
Radeon HD 7640G 256 @ 497 - 686 (Boost) MHz
Radeon HD 7600G (compare) 384 @ 320 - 424 (Boost) MHz
Radeon HD 7500G (compare) 256 @ 327 - 424 (Boost) MHz
Radeon HD 7520G (compare) 192 @ 497 - 686 (Boost) MHz
Radeon HD 7420G (compare) 128 @ 480 - 655 (Boost) MHz
Radeon HD 7400G (compare) 192 @ 327 - 423 (Boost) MHz
Radeon HD 7660G (compare) 384 @ 497 - 686 (Boost) MHz
Radeon HD 7620G 384 @ 360 - 497 (Boost) MHz
Radeon HD 7640G 256 @ 497 - 686 (Boost) MHz
Radeon HD 7600G (compare) 384 @ 320 - 424 (Boost) MHz
Radeon HD 7500G (compare) 256 @ 327 - 424 (Boost) MHz
Radeon HD 7520G (compare) 192 @ 497 - 686 (Boost) MHz
Radeon HD 7420G (compare) 128 @ 480 - 655 (Boost) MHz
Radeon HD 7400G (compare) 192 @ 327 - 423 (Boost) MHz
CodenameTrinityTrinity
ArchitectureTerascale 3Terascale 3
384 - 256 -
Core360 - 497 (Boost) MHz497 - 686 (Boost) MHz
yesyes
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology32 nm32 nm
Size
Introduced15.05.2012 15.05.2012
CPUGPU Base SpeedGPU Boost / Turbo
AMD A10-4655M4 x 2000 MHz, 25 W360 MHz497 MHz

3DMark - Cloud Gate Standard Score 1280x720
3064 Points (5%)
3DMark - Cloud Gate Standard Graphics 1280x720
5378 Points (3%)
3DMark - Fire Strike Score 1920x1080
659 Points (2%)
3DMark - Fire Strike Graphics 1920x1080
716 Points (2%)
3DMark - Ice Storm Standard Graphics 1280x720
29155 Points (4%)
3DMark 11 - Performance 1280x720
1030 points (3%)
min: 680     avg: 704     median: 704 (2%)     max: 728 points
3DMark 11 - Performance GPU 1280x720
948 points (2%)
min: 651     avg: 655.5     median: 655 (1%)     max: 660 points
3DMark Vantage
P Result 1280x1024 + AMD Radeon HD 7620G
P Result 1280x1024 + AMD Radeon HD 7640G
P GPU no PhysX 1280x1024 + AMD Radeon HD 7620G
P GPU no PhysX 1280x1024 + AMD Radeon HD 7640G
3DMark 2001SE - Standard 1024x768
18117 Points (19%)
3DMark 03 - Standard 1024x768
min: 12496     avg: 12523     median: 12523 (7%)     max: 12550 Points
3DMark 05 - Standard 1024x768
min: 7655     avg: 7781     median: 7781 (15%)     max: 7907 Points
3DMark 06 + AMD Radeon HD 7620G
Standard 1280x1024 + AMD Radeon HD 7640G
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
5.1 fps (2%)
Windows 7 Experience Index - Gaming graphics
6.1 points (87%)
Windows 7 Experience Index - Graphics
min: 4     avg: 5.3     median: 5 (71%)     max: 5 points
Cinebench R10 Shading 32Bit + AMD Radeon HD 7620G
Shading 32Bit + AMD Radeon HD 7640G
Cinebench R11.5 OpenGL 64Bit + AMD Radeon HD 7620G
OpenGL 64Bit + AMD Radeon HD 7640G
ComputeMark v2.1 - Normal, Score 1024x600
578 Points (2%)

Average Benchmarks AMD Radeon HD 7620G → 100%

Average Benchmarks AMD Radeon HD 7640G → 93%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

SimCity

SimCity

2013
low 1024x768
100%
Radeon HD 7620G:
21  fps
med. 1366x768
100%
Radeon HD 7620G:
15  fps
high 1366x768
100%
Radeon HD 7620G:
12  fps
Radeon HD 7620G:
»
Fifa 13

Fifa 13

2012
low 1024x768
100%
Radeon HD 7620G:
50  fps
med. 1366x768
100%
Radeon HD 7620G:
41  fps
high 1366x768
100%
Radeon HD 7620G:
40  fps
ultra 1920x1080
100%
Radeon HD 7620G:
37  fps
Radeon HD 7620G:
»
low 1024x768
Radeon HD 7640G:
30.2  fps
Radeon HD 7640G:
»
low 1024x768
Radeon HD 7640G:
42.7  fps
ultra 1920x1080
Radeon HD 7640G:
9.5  fps
Radeon HD 7640G:
»
Anno 2070

Anno 2070

2011
low 1024x768
Radeon HD 7640G:
44.3  fps
Radeon HD 7640G:
»
low 1280x720
Radeon HD 7640G:
28.4  fps
med. 1366x768
Radeon HD 7640G:
16.7  fps
high 1366x768
Radeon HD 7640G:
11.6  fps
Radeon HD 7640G:
»
Fifa 12

Fifa 12

2011
low 800x600
Radeon HD 7640G:
124.1  fps
med. 1024x768
Radeon HD 7640G:
76  fps
Radeon HD 7640G:
»
F1 2011

F1 2011

2011
low 800x600
Radeon HD 7640G:
45  fps
med. 1024x768
Radeon HD 7640G:
29  fps
Radeon HD 7640G:
»
low 1024x768
Radeon HD 7640G:
45.5 47.5 ~ 47 fps
high 1366x768
Radeon HD 7640G:
21.1  fps
Radeon HD 7640G:
»
Dirt 3

Dirt 3

2011
low 800x600
Radeon HD 7640G:
65.3  fps
med. 1024x768
Radeon HD 7640G:
33.5  fps
Radeon HD 7640G:
»
low 1024x768
Radeon HD 7640G:
109.1  fps
med. 1360x768
Radeon HD 7640G:
23  fps
high 1360x768
Radeon HD 7640G:
15  fps
Radeon HD 7640G:
»

Average Gaming AMD Radeon HD 7620G → 100%

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Redaktion, 2017-09- 8 (Update: 2017-09-11)