AMD Radeon HD 7340 vs AMD Radeon R2 (Stoney Ridge) vs AMD Radeon HD 6250

AMD Radeon HD 7340

The AMD Radeon HD 7340 (or perhaps also called ATI Mobility Radeon HD 7340) is an integrated graphics card in the 2nd generation Zacate netbook processor. It is based on the same graphics core as the Radeon HD 6320, but the base clock and the turbo boost is somewhat higher. Furthermore, it features the UVD3 video processor.

The 3D performance of the HD 7340 is about 10 percent faster than the HD 6320. Gaming performance are therefore similar to a Nvidia ION or Intel HD Graphics graphics card. In our tests the HD 6320 was only able to run low end games like Fifa 11, Sims 3 and Star Craft 2 single player in lowest detail settings fluently. More demanding games like Risen or Call of Duty series were not playable.

The UVD3 video decoder allows the decoding of HD videos using the graphics card. It allows the parallel decoding of two MPEG2, H.264 and VC-1 streams and therefore compatible to BD-Live. Furthermore, the new UVD3 also supports DivX, Xvid and MPEG4 Part 2 decoding. Blu-Ray 3D via MCV (Multiview Video Coding) is theoretically supported by the UVD3 but wasn't available in the first laptops and platforms (no hardware accelleration and no HDMI 1.4 output).

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.

AMD Radeon HD 6250

The AMD Radeon HD 6250 (or sometimes also called ATI Mobility Radeon HD 6250) is an integrated graphics card in the Ontario netbook processors (e.g., C-50 and C-30). It is based on the same graphics core as the ATI Mobility Radeon HD 4330 but without any dedicated memory. Furthermore, it features the newer UVD3 video processor.

The 3D performance of the HD 6250 is located in the low end above the integrated chipset graphics card of the 880M chipset (e.g. Radeon HD 4250). Due to the slow processor, the gaming is however very restricted. In our tests only very old games ran fluent in medium detail settings (e.g. Half Life 2). Even non demanding games like Trackmania Nations Forever ran in our tests with a C-50 APU only in low settings. Modern games like Starcraft 2 or Battlefield Bad Company 2 are unplayable.

The new UVD3 video decoder allows the decoding of HD videos using the graphics card. It allows the parallel decoding of two MPEG2, H.264 and VC-1 streams and therefore compatible to BD-Live. Furthermore, the new UVD3 also supports DivX, Xvid and MPEG4 Part 2 decoding. Blu-Ray 3D via MCV (Multiview Video Coding) of the UVD3 is not supported due to the low processing power.

The power consumption of the HD 6250 is quite low as it is directly integrated in the processor. The whole processor containing northbridge parts, a memory controller and the gpu is specified with 9 Watt TDP.