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AMD Radeon HD 7420G

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.

ManufacturerAMD
Radeon HD 7000G Series
Radeon HD 7660G compare 384 @ 497 - 686 MHz
Radeon HD 7620G compare 384 @ 360 - 497 MHz
Radeon HD 7640G compare 256 @ 497 - 686 MHz
Radeon HD 7600G compare 384 @ 320 - 424 MHz
Radeon HD 7500G compare 256 @ 327 - 424 MHz
Radeon HD 7520G compare 192 @ 497 - 686 MHz
Radeon HD 7420G 128 @ 480 - 655 MHz
Radeon HD 7400G compare 192 @ 327 - 423 MHz
CodenameTrinity
ArchitectureTerascale 3
Pipelines128 - unified
Core Speed480 - 655 (Boost) MHz
Shared Memoryyes
DirectXDirectX 11, Shader 5.0
technology32 nm
Notebook Sizemedium sized
Date of Announcement01.06.2012
CPU in Radeon HD 7420GGPU Base SpeedGPU Boost / Turbo
AMD A4-4300M2 x 2500 MHz, 35 W480 MHz655 MHz

Benchmarks

Performance Rating - 3DMark 11 + Fire Strike + Time Spy
3 pt (3%)
3DMark Vantage
P Result 1280x1024 +
P GPU no PhysX 1280x1024 +
3DMark 06 Standard 1280x1024 +
Cinebench R10 Shading 32Bit +
Cinebench R11.5 OpenGL 64Bit +
Cinebench R15
OpenGL 64Bit +
Ref. Match 64Bit +
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.

Dirt 4

Dirt 4

2017
low 1280x720
15.5  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1366x768
26.1  fps    + Compare
med. 1366x768
18  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
23.3  fps    + Compare
med. 1366x768
18.3  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
GRID 2

GRID 2

2013
low 1024x768
28.9  fps    + Compare
med. 1366x768
17.2  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
91.5  fps    + Compare
med. 1366x768
28.2  fps    + Compare
high 1366x768
14.9  fps    + Compare
» With all tested laptops playable in detail settings low.
low 1024x768
28.7  fps    + Compare
med. 1366x768
14.9  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
49.6  fps    + Compare
med. 1366x768
18.4  fps    + Compare
» With all tested laptops playable in detail settings low.
Far Cry 3

Far Cry 3

2012
low 1024x768
14  fps    + Compare
med. 1366x768
11  fps    + Compare
high 1366x768
10  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
12  fps    + Compare
med. 1366x768
10  fps    + Compare
high 1366x768
4  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
14  fps    + Compare
med. 1366x768
12  fps    + Compare
high 1366x768
9  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Fifa 13

Fifa 13

2012
low 1024x768
82  fps    + Compare
med. 1366x768
54  fps    + Compare
high 1366x768
34  fps    + Compare
» With all tested laptops playable in detail settings med..
F1 2012

F1 2012

2012
low 1024x768
19  fps    + Compare
med. 1366x768
18  fps    + Compare
high 1366x768
15  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
24  fps    + Compare
med. 1366x768
18  fps    + Compare
high 1366x768
11  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
52  fps    + Compare
med. 1366x768
39  fps    + Compare
high 1366x768
31  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1024x768
12  fps    + Compare
med. 1366x768
11  fps    + Compare
high 1366x768
8  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.