AMD Radeon R2 (Stoney Ridge)

AMD Radeon R2 (Stoney Ridge)

The AMD Radeon R2 (Stoney Ridge) is an integrated graphics adapter of the weakest mobile dual-core Stoney Ridge APUs. At its launch, it is being used in the AMD E2-9010 and probably has 128 shaders running at up to 600 MHz. The performance can vary heavily depending on the configured TDP and the system memory.

Architecture and Features

The Radeon R4 is equipped with two cores from the third GCN generation (often called GCN 1.2 or 2.0 by the press). This means it is very similar to the Tonga desktop chip and supports DirectX 12 (FL 12_0), but the graphics cores can also be accessed via Mantle, OpenGL, and OpenCL. The GPU supports the HSA 1.0 standard as well and can therefore use the connection with the CPU cores very efficiently. The technical specifications are identical to the Carrizo predecessor. 

The video unit includes the UVD 6 (Unified Video Decoder), which can decode HEVC/H.265 and 4K with support from the hardware. More details are available in our dedicated Stoney Ridge article

Power Consumption

Depending on the model and configured TDP (cTDP), the 28 nm chip is specified with 10 up to 15 Watts. This means it can also be used for thin and light notebooks.

Radeon R (Stoney / Bristol Ridge) Series
Radeon R7 (Bristol Ridge) (compare) 512 @ 900 (Boost) MHz64/128 Bit
Radeon R5 (Bristol Ridge) (compare) 384 @ 800 (Boost) MHz64/128 Bit
Radeon R5 (Stoney Ridge) (compare) 192 @ 800 (Boost) MHz64 Bit
Radeon R4 (Stoney Ridge) (compare) 192 @ 600 (Boost) MHz64 Bit
Radeon R2 (Stoney Ridge) 128 @ 600 (Boost) MHz64 Bit
CodenameStoney Ridge
ArchitectureGCN 1.2/2.0
Pipelines128 - unified
Core Speed600 (Boost) MHz
Memory Bus Width64 Bit
Shared Memoryyes
DirectXDirectX 12 (FL 12_0)
Transistor Count3100 Million
technology28 nm
FeaturesUVD 6, VCE
Date of Announcement01.06.2016
CPUGPU Base SpeedGPU Boost / Turbo
AMD A4-91202 x 2200 MHz, 10-15 W? MHz655 MHz
AMD E2-90102 x 2000 MHz, 10-15 W? MHz600 MHz
AMD E2-90002 x 1800 MHz, 10 W? MHz600 MHz
min. - max.? - ? MHz600 - 655 MHz


3DMark - Ice Storm Unlimited Graphics Score 1280x720 offscreen
min: 37423     avg: 38046.5     median: 38046 (7%)     max: 38670 Points
3DMark - Cloud Gate Standard Score 1280x720
min: 1998     avg: 2092.5     median: 2092 (3%)     max: 2187 Points
3DMark - Cloud Gate Standard Graphics 1280x720
min: 3009     avg: 3321.5     median: 3321 (2%)     max: 3634 Points
3DMark - Fire Strike Score 1920x1080
min: 449     avg: 463     median: 463 (2%)     max: 477 Points
3DMark - Fire Strike Graphics 1920x1080
min: 503     avg: 511.5     median: 511 (1%)     max: 520 Points
3DMark 11 - Performance 1280x720
min: 761     avg: 774.5     median: 774 (2%)     max: 788 points
3DMark 11 - Performance GPU 1280x720
min: 714     avg: 730.5     median: 730 (1%)     max: 747 points
3DMark Vantage
P Result 1280x1024 +
P GPU no PhysX 1280x1024 +
3DMark 06 Standard 1280x1024 +
Unigine Heaven 3.0 - OpenGL, Normal Tessellation, High Shaders 1920x1080
5.5 fps (3%)
Cinebench R10 Shading 32Bit +
Cinebench R11.5 OpenGL 64Bit +
Cinebench R15
OpenGL 64Bit +
Ref. Match 64Bit +
GFXBench (DX / GLBenchmark) 2.7
T-Rex HD Offscreen C24Z16 1920x1080 +
T-Rex HD Onscreen C24Z16 +
- 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.

low 1280x720
43.5  fps    + Compare
med. 1366x768
26.4  fps    + Compare
» With all tested laptops playable in detail settings low.
low 1366x768
25.5  fps    + Compare
med. 1366x768
20.3  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
23.6  fps    + Compare
med. 1366x768
18.5  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1280x720
28.7  fps    + Compare
med. 1366x768
18.4  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768