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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 384 @ 497 - 686 (Boost) MHz
Radeon HD 7620G 384 @ 360 - 497 (Boost) MHz
Radeon HD 7640G 256 @ 497 - 686 (Boost) MHz
Radeon HD 7600G 384 @ 320 - 424 (Boost) MHz
Radeon HD 7500G 256 @ 327 - 424 (Boost) MHz
Radeon HD 7520G 192 @ 497 - 686 (Boost) MHz
Radeon HD 7420G 128 @ 480 - 655 (Boost) MHz
Radeon HD 7400G 192 @ 327 - 423 (Boost) MHz
CodenameTrinity
ArchitectureTerascale 3
Pipelines128 - unified
Core Speed *480 - 655 (Boost) MHz
Shared Memoryyes
DirectXDirectX 11, Shader 5.0
technology32 nm
Notebook Sizemedium sized
Date of Announcement01.06.2012
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

Cinebench R15
Ref. Match 64Bit +
OpenGL 64Bit +
3DMark - Fire Strike Graphics 1920x1080
0%
100%
min: 343     avg: 343 (1%)     median: 343 (1%)     max: 343 Points
3DMark - Ice Storm Standard Graphics 1280x720
0%
100%
min: 32636     avg: 32636 (4%)     median: 32636 (4%)     max: 32636 Points
LuxMark v2.0 64Bit - Room GPUs-only
0%
100%
min: 35     avg: 35 (1%)     median: 35 (1%)     max: 35 Samples/s
LuxMark v2.0 64Bit - Sala GPUs-only
0%
100%
min: 67     avg: 67 (1%)     median: 67 (1%)     max: 67 Samples/s
3DMark 11 - Performance 1280x720
0%
100%
min: 0     avg: 250.5 (1%)     median: 250.5 (1%)     max: 501 points
3DMark Vantage
P GPU no PhysX 1280x1024 +
P Result 1280x1024 +
3DMark 06 Standard 1280x1024 +
Cinebench R11.5 OpenGL 64Bit +
Cinebench R10 Shading 32Bit +
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

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 detailled information on the benchmark results, click on the fps number.

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.
BioShock Infinite
low 1280x720
26.1  fps    + Compare
med. 1366x768
13  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
StarCraft II: Heart of the Swarm
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.
Tomb Raider
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.
Dead Space 3
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.
Hitman: Absolution
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.
Medal of Honor: Warfighter
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..