Notebookcheck Logo

AMD Radeon HD 6770M

AMD Radeon HD 6770M

The AMD Radeon HD 6770M (sometimes also called ATI Mobility Radeon HD 6770 or similar) is a fast middle class graphics card for laptops in 2011. It supports DirectX11, is the successor of the HD 5770, and features higher clock rates, 80 more shaders, Eyefinity+ and the new UVD3 video decoder. However, it is still produced in 40nm and based on the same Whistler chip as the entire 6700M and 6600M series. The chip is normally clocked at 725 MHz, but is only clocked at 675 MHz in the MacBook Pro 15 Late 2011 model.

The 480 Stream processors should still based on the "old" 5D architecture similar to the 5000 series. Therefore, the number of shaders is not comparable to the 1D cores of current Nvidia GPUs. The Tessellation performance, however, should be an improvement with the new cards. The Stream processors can be used with DirectX 11, OpenGL 4.1, DirectCompute 11 and OpenCL. The latter two APIs can exploit the GPU for general computations like transcoding videos.

The 3D performance of the 6770M is slightly better than the GeForce GT 555M and is therefore positioned in the upper middle class as of 2011. Demanding games like Anno 2070 or Skyrim can only be played in medium detail settings and lower resolutions. Certain games, such as Battlefield 3, may even only run in low detail settings. Older games like Call of Duty: Black Ops are playable with all settings maxed.

The new UVD3 video decoder supports the decoding of MPEG-4 AVC/H.264, VC-1, MPEG-2, Flash and now also Multi-View Codec (MVC) and MPEG-4 part 2 (DivX, xVid) HD videos on the graphics card.

Furthermore, the HD 6700M series integrates an HD audio controller to transmit HD Audio (TrueHD or DTS Master Audio) over HDMI and DisplayPort (e.g., for Blu-Ray videos).

The AMD HD3D Technology offers support for Blu-Ray 3D and 3D displays (integrated and external). However, the solution is not as mature as 3D Vision from Nvidia in terms of dirvers and overall support.

Thanks to Eyefinity, the AMD card is able to theoretically drive up to 5 monitors simultaneously. This would only work, however, if the laptop features enough DisplayPort outputs.

The power consumption of the 6770M should be similar to the Mobility Radeon HD 5770. As a result, the 6770M is normally only found in 15-inch or larger notebooks.

Radeon HD 6600M/6700M Series

Radeon HD 6770M 480 @ 0.68 GHz128 Bit @ 800 MHz
Radeon HD 6750M compare 480 @ 0.6 GHz128 Bit @ 900 MHz
Radeon HD 6730M compare 480 @ 0.73 GHz128 Bit @ 800 MHz
Radeon HD 6650M compare 480 @ 0.6 GHz128 Bit @ 900 MHz
Radeon HD 6630M compare 480 @ 0.49 GHz128 Bit @ 800 MHz
ArchitectureTerascale 2
Pipelines480 - unified
Core Speed675 / 725 MHz
Memory Speed800 MHz
Memory Bus Width128 Bit
Memory TypeGDDR5
Shared Memoryno
APIDirectX 11, Shader 5.0, OpenGL 4.0
Transistor Count716 Million
technology40 nm
Notebook Sizemedium sized
Date of Announcement04.01.2011
Link to Manufacturer Page


3DMark 11 - 3DM11 Performance Score
min: 1347     avg: 1475     median: 1475.5 (2%)     max: 1561 Points
3DMark Vantage
3DM Vant. Perf. total +
3DM Vant. Perf. GPU no PhysX +
3DMark 06 3DMark 06 - Score Unknown Settings +
3DMark 06 - Standard 1280x1024 +
3DMark 06
min: 9266     avg: 10127     median: 10056 (14%)     max: 10762 Points
SPECviewperf 11
specvp11 snx-01 +
specvp11 tcvis-02 +
specvp11 sw-02 +
specvp11 proe-05 +
specvp11 maya-03 +
specvp11 lightwave-01 +
specvp11 ensight-04 +
specvp11 catia-03 +
Cinebench R10 Cinebench R10 Shading (32bit) +
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit +
- 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.

Anno 2070

Anno 2070

low 1024x768
95 105 ~ 100 fps    + Compare + 📈 Graph
med. 1366x768
40 42 ~ 41 fps    + Compare + 📈 Graph
high 1366x768
26.3 27 ~ 27 fps    + Compare + 📈 Graph
ultra 1920x1080
13.5 15 ~ 14 fps    + Compare + 📈 Graph
» With all tested laptops playable in detail settings med..
low 1280x720
59  fps    + Compare
med. 1366x768
39.8 43 ~ 41 fps    + Compare + 📈 Graph
high 1366x768
29 30.4 ~ 30 fps    + Compare + 📈 Graph
ultra 1920x1080
15 15 ~ 15 fps    + Compare + 📈 Graph
» With all tested laptops playable in detail settings med..
low 1024x768
37.7 39 ~ 38 fps    + Compare + 📈 Graph
med. 1366x768
26.7 28 ~ 27 fps    + Compare + 📈 Graph
high 1366x768
21.1 22 ~ 22 fps    + Compare + 📈 Graph
» With all tested laptops playable in detail settings low.