AMD Radeon HD 7970M videocard review: Specs | Hashrate | CPU performance | Config – The video card for laptops Radeon HD 7970M belongs to the high-end video accelerators. The new video card is based on the 28 nm standard. technical process and is based on the “Pitcairn” architecture. It is worth noting that the video adapter Radeon HD 7970M was codenamed Thames.
In general, the mobile video accelerator Radeon HD 7970M is similar to the desktop video card Radeon HD 7870, but has lower path frequencies. The Radeon HD 7970M has 1280 Graphics CoreNext stream processors, 80 texture units, 32 ROP units, a 256-bit memory interface, and its volume is 2 GB. The core runs at 850 MHz and the memory clocks at 1200 MHz (or 4800 MHz). Mobile accelerator from their children
The Radeon HD 7970M took the AMD ZeroCore technology, in addition, it provides support for the AMD Enduro function, which, when the video subsystem is idle, will reduce its power consumption to 1 W. As a result, the overall performance level of the HD 7970M sits between the desktop Radeon HD 7850 and HD 7870 / Compared to NVIDIA GPUs, the HD 7970M should be slightly faster than the GeForce GTX 675M and roughly on par with the GTX 680M, announcement which is expected in the summer of 2012. The 7970M video card has a UVD3 video decoder, which is capable of decoding not only MPEG-4 AVC / H.264, VC-1, MPEG-2, Flash, but also Multi-View Codec (MVC) and MPEG-4 part 2 (DivX, xVid) HD.
The 7900M series also supports automatic switching between integrated and discrete graphics. This technology from AMD is called Enduro, and it is identical in function to the Optimus technology from NVIDIA. In addition, the 7970M has the ability to support up to 6 monitors simultaneously using Eyefinity technology when Enduro is disabled. Also worth noting is the ZeroCore technology, which is designed to optimize energy consumption. The essence of this technology is to significantly save energy consumption when the monitor is off. The next technology supported by the video card is PowerTune, its essence lies in the automatic overclocking of the video chip and its ability to lower the frequency until the heat dissipation of the graphics card is within acceptable limits.
For example, the operating frequency of the chip can be reduced when loading office suites and vice versa, raised in demanding computer games on hardware resources. The built-in HD audio processor is capable of delivering high quality audio (TrueHD and DTS Master Audio) via HDMI and DisplayPort (such as Blu-ray video). In addition, the presence of Discrete Digital Multipoint Audio (DDMA) technology allows you to output sound simultaneously from multiple devices. The power consumption level of the AMD Radeon HD 7970M is quite high at 100 watts.
Specifications
| AMD Radeon HD 7970M |
| Manufacturer |
| AMD Radeon |
| Series |
| ATI Radeon HD7000 |
| GPU |
| GCN Wimbledon XT |
| Streams |
| 1280 |
| Core clock speed |
| 850 MHz |
| Shader frequency |
| 850MHz |
| Memory frequency |
| 1200MHz |
| Memory bus width |
| 256Bit |
| Memory type |
| GDDR5 |
| Memory Amount |
| 2048MB |
| DirectX |
| DirectX 11, Shader 5.0 |
| Technology |
| 28nm |
Synthetic tests
- 3DMark (2011) – Performance GPU: 5630
- 3DMark (2013) – Ice Storm Standard Graphics: 149672
- 3DMark (2013) – Cloud Gate Standard Graphics: 31992
- 3DMark (2013) – Fire Strike Standard Graphics: 4702
- Unigine Heaven 2,1 (DirectX 11 1280×1024): 80.1 kad sec
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