AMD Radeon HD 7640G vs AMD Radeon HD 7420G vs AMD Radeon HD 7620G

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 7420G

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The AMD Radeon HD 7420G or HD7420G is a processor graphics card in the Trinity APUs from AMD (A4-4300M). It is a low-range version with a reduced shader count / clock speed and will be featured in the A4 series. It should be based on the VLIW4 architecture of the Radeon HD 6900 series desktop graphics card and most likely wont 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 somewhat below the Llano-based HD 6620G or in range of slower versions of the HD Graphics 4000. Most modern games of 2013/2014 won't run fluently even in (very) low settings; however, older and less demanding games can be played smoothly.

The APU is still manufactured in 32nm and as most A4 series parts should be classified with a 35 Watt TDP, the HD 7420G is best suited for laptops of 13-14-inch an up.

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 7640GAMD Radeon HD 7420GAMD Radeon HD 7620G
ManufacturerAMDAMDAMD
Radeon HD 7000G Series
Radeon HD 7660G 384 @ 497 - 686 MHz
Radeon HD 7620G 384 @ 360 - 497 MHz
Radeon HD 7640G 256 @ 497 - 686 MHz
Radeon HD 7600G 384 @ 320 - 424 MHz
Radeon HD 7500G 256 @ 327 - 424 MHz
Radeon HD 7520G 192 @ 497 - 686 MHz
Radeon HD 7420G 128 @ 480 - 655 MHz
Radeon HD 7400G 192 @ 327 - 423 MHz
Radeon HD 7660G 384 @ 497 - 686 MHz
Radeon HD 7620G 384 @ 360 - 497 MHz
Radeon HD 7640G 256 @ 497 - 686 MHz
Radeon HD 7600G 384 @ 320 - 424 MHz
Radeon HD 7500G 256 @ 327 - 424 MHz
Radeon HD 7520G 192 @ 497 - 686 MHz
Radeon HD 7420G 128 @ 480 - 655 MHz
Radeon HD 7400G 192 @ 327 - 423 MHz
Radeon HD 7660G 384 @ 497 - 686 MHz
Radeon HD 7620G 384 @ 360 - 497 MHz
Radeon HD 7640G 256 @ 497 - 686 MHz
Radeon HD 7600G 384 @ 320 - 424 MHz
Radeon HD 7500G 256 @ 327 - 424 MHz
Radeon HD 7520G 192 @ 497 - 686 MHz
Radeon HD 7420G 128 @ 480 - 655 MHz
Radeon HD 7400G 192 @ 327 - 423 MHz
CodenameTrinityTrinityTrinity
ArchitectureTerascale 3Terascale 3Terascale 3
Cores256 - unified128 - unified384 - unified
Core497 - 686 (Boost) MHz480 - 655 (Boost) MHz360 - 497 (Boost) MHz
Shared Memoryyesyesyes
DirectXDirectX 11, 5.0DirectX 11, 5.0DirectX 11, 5.0
Technology32 nm32 nm32 nm
Size1/31/31/3
Introduced15.05.2012 01.06.2012 15.05.2012
CPUGPU Base SpeedGPU Boost / Turbo
AMD A8-4500M4 x 1900 MHz, 35 W496 MHz685 MHz
AMD A8-4557M4 x 1900 MHz, 35 W497 MHz655 MHz
min. - max.496 - 497 MHz655 - 685 MHz

3DMark - Cloud Gate Standard Score 1280x720
1963 Points (3%)
3064 Points (5%)
3DMark - Cloud Gate Standard Graphics 1280x720
2717 Points (1%)
5378 Points (3%)
3DMark - Fire Strike Score 1920x1080
332 Points (1%)
659 Points (2%)
3DMark - Fire Strike Graphics 1920x1080
343 Points (1%)
716 Points (2%)
3DMark - Ice Storm Standard Graphics 1280x720
32636 Points (4%)
29155 Points (4%)
3DMark 11 - Performance 1280x720
min: 680     avg: 704     median: 704 (2%)     max: 728 points
501 points (1%)
1030 points (3%)
3DMark 11 - Performance GPU 1280x720
min: 651     avg: 656     median: 655.5 (1%)     max: 660 points
453 points (1%)
948 points (2%)
3DMark Vantage
P Result 1280x1024 + AMD Radeon HD 7640G
P Result 1280x1024 + AMD Radeon HD 7420G
P Result 1280x1024 + AMD Radeon HD 7620G
P GPU no PhysX 1280x1024 + AMD Radeon HD 7640G
P GPU no PhysX 1280x1024 + AMD Radeon HD 7420G
P GPU no PhysX 1280x1024 + AMD Radeon HD 7620G
3DMark 2001SE - Standard 1024x768
18117 Points (19%)
3DMark 03 - Standard 1024x768
min: 12496     avg: 12523     median: 12523 (7%)     max: 12550 Points
10934 Points (6%)
3DMark 05 - Standard 1024x768
min: 7655     avg: 7781     median: 7781 (15%)     max: 7907 Points
3DMark 06 Standard 1280x1024 + AMD Radeon HD 7640G
Standard 1280x1024 + AMD Radeon HD 7420G
Score + AMD Radeon HD 7620G
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
5.1 fps (1%)
Windows 7 Experience Index - Gaming graphics
6.1 points (77%)
6 points (76%)
Windows 7 Experience Index - Graphics
min: 4.9     avg: 5.3     median: 5.3 (66%)     max: 5.6 points
4.9 points (62%)
Cinebench R10 Shading 32Bit + AMD Radeon HD 7640G
Shading 32Bit + AMD Radeon HD 7420G
Shading 32Bit + AMD Radeon HD 7620G
Cinebench R11.5 OpenGL 64Bit + AMD Radeon HD 7640G
OpenGL 64Bit + AMD Radeon HD 7420G
OpenGL 64Bit + AMD Radeon HD 7620G
Cinebench R15
OpenGL 64Bit + AMD Radeon HD 7420G
Ref. Match 64Bit + AMD Radeon HD 7420G
LuxMark v2.0 64Bit - Room GPUs-only
35 Samples/s (0%)
LuxMark v2.0 64Bit - Sala GPUs-only
67 Samples/s (1%)
ComputeMark v2.1 - Normal, Score 1024x600
332 Points (1%)
578 Points (2%)

Average Benchmarks AMD Radeon HD 7640G → 100% n=7

Average Benchmarks AMD Radeon HD 7420G → 77% n=7

Average Benchmarks AMD Radeon HD 7620G → 121% n=7

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

Dirt 4

Dirt 4

2017
low 1280x720
Radeon HD 7420G:
15.5  fps
low 1280x720
Radeon HD 7420G:
42.4  fps
med. 1366x768
Radeon HD 7420G:
26.6  fps
low 1366x768
Radeon HD 7420G:
26.1  fps
med. 1366x768
Radeon HD 7420G:
18  fps
low 1024x768
Radeon HD 7420G:
23.3  fps
med. 1366x768
Radeon HD 7420G:
18.3  fps
low 1280x720
Radeon HD 7420G:
33.8  fps
med. 1366x768
Radeon HD 7420G:
17.3  fps
low 1024x768
Radeon HD 7420G:
38.6  fps
med. 1366x768
Radeon HD 7420G:
14.6  fps
low 1024x768
Radeon HD 7420G:
9.5  fps
med. 1366x768
Radeon HD 7420G:
8.6  fps
Sims 4

Sims 4

2014
low 1024x768
Radeon HD 7420G:
88.7  fps
med. 1366x768
Radeon HD 7420G:
19.7  fps
F1 2013

F1 2013

2013
low 1024x768
Radeon HD 7420G:
18  fps
med. 1366x768
Radeon HD 7420G:
15  fps
low 1024x768
Radeon HD 7420G:
23.3  fps
med. 1366x768
Radeon HD 7420G:
16.6  fps
low 1280x720
Radeon HD 7420G:
11.7  fps
low 1024x768
Radeon HD 7420G:
8.2  fps
GRID 2

GRID 2

2013
low 1024x768
Radeon HD 7420G:
28.9  fps
med. 1366x768
Radeon HD 7420G:
17.2  fps
low 1024x768
Radeon HD 7420G:
10.3  fps
low 1280x720
Radeon HD 7420G:
26.1  fps
med. 1366x768
Radeon HD 7420G:
13  fps
low 1024x768
Radeon HD 7420G:
91.5  fps
med. 1366x768
Radeon HD 7420G:
28.2  fps
high 1366x768
Radeon HD 7420G:
14.9  fps
SimCity

SimCity

2013
low 1024x768
Radeon HD 7620G:
21  fps
med. 1366x768
Radeon HD 7620G:
15  fps
high 1366x768
Radeon HD 7620G:
12  fps
low 1024x768
Radeon HD 7420G:
28.7  fps
med. 1366x768
Radeon HD 7420G:
14.9  fps
low 1024x768
Radeon HD 7420G:
49.6  fps
med. 1366x768
Radeon HD 7420G:
18.4  fps
Far Cry 3

Far Cry 3

2012
low 1024x768
Radeon HD 7420G:
14  fps
med. 1366x768
Radeon HD 7420G:
11  fps
high 1366x768
Radeon HD 7420G:
10  fps
med. 1366x768
Radeon HD 7420G:
10  fps
high 1366x768
Radeon HD 7420G:
8.5  fps
low 1024x768
Radeon HD 7420G:
12  fps
med. 1366x768
Radeon HD 7420G:
10  fps
high 1366x768
Radeon HD 7420G:
4  fps
low 1024x768
Radeon HD 7420G:
14  fps
med. 1366x768
Radeon HD 7420G:
12  fps
high 1366x768
Radeon HD 7420G:
9  fps
Fifa 13

Fifa 13

2012
low 1024x768
Radeon HD 7420G:
82  fps
Radeon HD 7620G:
50  fps
med. 1366x768
Radeon HD 7420G:
54  fps
Radeon HD 7620G:
41  fps
high 1366x768
Radeon HD 7420G:
34  fps
Radeon HD 7620G:
40  fps
ultra 1920x1080
Radeon HD 7620G:
37  fps
F1 2012

F1 2012

2012
low 1024x768
Radeon HD 7420G:
19  fps
med. 1366x768
Radeon HD 7420G:
18  fps
high 1366x768
Radeon HD 7420G:
15  fps
low 1024x768
Radeon HD 7420G:
24  fps
med. 1366x768
Radeon HD 7420G:
18  fps
high 1366x768
Radeon HD 7420G:
11  fps
low 1024x768
Radeon HD 7420G:
52  fps
med. 1366x768
Radeon HD 7420G:
39  fps
high 1366x768
Radeon HD 7420G:
31  fps
med. 1366x768
Radeon HD 7420G:
22  fps
low 1024x768
Radeon HD 7420G:
11  fps
med. 1366x768
Radeon HD 7420G:
6  fps
high 1366x768
Radeon HD 7420G:
3  fps
low 1024x768
Radeon HD 7420G:
12  fps
med. 1366x768
Radeon HD 7420G:
11  fps
high 1366x768
Radeon HD 7420G:
8  fps
low 1024x768
100%
Radeon HD 7640G:
30.2  fps
low 1024x768
100%
Radeon HD 7640G:
42.7  fps
96%
Radeon HD 7420G:
39.7 42 ~ 41 fps
med. 1366x768
Radeon HD 7420G:
24 26.4 ~ 25 fps
high 1366x768
Radeon HD 7420G:
13 21.4 ~ 17 fps
ultra 1920x1080
100%
Radeon HD 7640G:
9.5  fps
low 1024x768
Radeon HD 7420G:
16  fps
med. 1366x768
Radeon HD 7420G:
10  fps
high 1366x768
Radeon HD 7420G:
8  fps
low 1280x720
Radeon HD 7420G:
21  fps
high 1366x768
Radeon HD 7420G:
16  fps
Alan Wake

Alan Wake

2012
low 1024x768
Radeon HD 7420G:
16  fps
med. 1366x768
Radeon HD 7420G:
10  fps
Anno 2070

Anno 2070

2011
low 1024x768
100%
Radeon HD 7640G:
44.3  fps
95%
Radeon HD 7420G:
39.9 45 ~ 42 fps
med. 1366x768
Radeon HD 7420G:
15.8 17 ~ 16 fps
high 1366x768
Radeon HD 7420G:
12  fps
low 1280x720
100%
Radeon HD 7640G:
28.4  fps
85%
Radeon HD 7420G:
22.3 25 ~ 24 fps
med. 1366x768
100%
Radeon HD 7640G:
16.7  fps
90%
Radeon HD 7420G:
14.3 16 ~ 15 fps
high 1366x768
100%
Radeon HD 7640G:
11.6  fps
95%
Radeon HD 7420G:
10 11 ~ 11 fps
low 1024x768
Radeon HD 7420G:
16  fps
med. 1366x768
Radeon HD 7420G:
11  fps
high 1366x768
Radeon HD 7420G:
7  fps
Fifa 12

Fifa 12

2011
low 800x600
100%
Radeon HD 7640G:
124.1  fps
med. 1024x768
100%
Radeon HD 7640G:
76  fps
F1 2011

F1 2011

2011
low 800x600
100%
Radeon HD 7640G:
45  fps
med. 1024x768
100%
Radeon HD 7640G:
29  fps
low 1024x768
100%
Radeon HD 7640G:
45.5 47.5 ~ 47 fps
89%
Radeon HD 7420G:
42  fps
high 1366x768
100%
Radeon HD 7640G:
21.1  fps
71%
Radeon HD 7420G:
15  fps
Dirt 3

Dirt 3

2011
low 800x600
100%
Radeon HD 7640G:
65.3  fps
med. 1024x768
100%
Radeon HD 7640G:
33.5  fps
Total War: Shogun 2

Total War: Shogun 2

2011
low 1024x768
Radeon HD 7420G:
55  fps
med. 1280x720
Radeon HD 7420G:
12  fps
low 800x600
Radeon HD 7420G:
31  fps
med. 1024x768
Radeon HD 7420G:
23  fps
low 1024x768
100%
Radeon HD 7640G:
109.1  fps
92%
Radeon HD 7420G:
100  fps
med. 1360x768
100%
Radeon HD 7640G:
23  fps
95%
Radeon HD 7420G:
22  fps
high 1360x768
100%
Radeon HD 7640G:
15  fps
114%
Radeon HD 7420G:
17  fps
low 800x600
Radeon HD 7420G:
27  fps
med. 1360x768
Radeon HD 7420G:
16  fps
low 1024x768
Radeon HD 7420G:
32  fps
med. 1366x768
Radeon HD 7420G:
25  fps
high 1366x768
Radeon HD 7420G:
16  fps
Crysis - GPU Benchmark

Crysis - GPU Benchmark

2007
low 1024x768
Radeon HD 7420G:
35  fps
med. 1024x768
Radeon HD 7420G:
15  fps
Crysis - CPU Benchmark

Crysis - CPU Benchmark

2007
low 1024x768
Radeon HD 7420G:
21  fps
med. 1024x768
Radeon HD 7420G:
13  fps

Average Gaming AMD Radeon HD 7640G → 100%

Average Gaming AMD Radeon HD 7420G → 92%

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