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Radeon HD 6970 vs Radeon HD 7970
Intro
The Radeon HD 6970 has core clock speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 96 TAUs and 32 Rasterization Operator Units.Compare all of that to the Radeon HD 7970, which features GPU clock speed of 925 MHz, and 3072 MB of GDDR5 RAM set to run at 1375 MHz through a 384-bit bus. It also is comprised of 2048 SPUs, 128 TAUs, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Theoretically speaking, the Radeon HD 7970 should perform quite a bit faster than the Radeon HD 6970 in general. (explain)
| Radeon HD 7970 |
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264000 MB/sec |
| Radeon HD 6970 |
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176000 MB/sec |
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Texel Rate
The Radeon HD 7970 should be quite a bit (about 40%) faster with regards to AF than the Radeon HD 6970. (explain)| Radeon HD 7970 |
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118400 Mtexels/sec |
| Radeon HD 6970 |
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84480 Mtexels/sec |
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Pixel Rate
If using a high resolution is important to you, then the Radeon HD 7970 is superior to the Radeon HD 6970, but it probably won't make a huge difference. (explain)| Radeon HD 7970 |
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29600 Mpixels/sec |
| Radeon HD 6970 |
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28160 Mpixels/sec |
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Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Price Comparison
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
Radeon HD 6970Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 7970Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | Radeon HD 6970 | Radeon HD 7970 |
|---|---|---|
| Manufacturer | ATi | ATi |
| Year | December 2010 | January 2012 |
| Code Name | Cayman XT | Tahiti XT |
| Fab Process | 40 nm | 28 nm |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| Memory | 2048 MB | 3072 MB |
| Core Speed | 880 MHz | 925 MHz |
| Shader Speed | N/A MHz | (N/A) MHz |
| Memory Speed | 1375 MHz | 1375 MHz |
| Unified Shaders | 1536 | 2048 |
| Texture Mapping Units | 96 | 128 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 384-bit |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.2 |
| Power (Max TDP) | 250 watts | 250 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 176000 MB/sec | 264000 MB/sec |
| Texel Rate | 84480 Mtexels/sec | 118400 Mtexels/sec |
| Pixel Rate | 28160 Mpixels/sec | 29600 Mpixels/sec |
Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.
Comments
3 Responses to “Radeon HD 6970 vs Radeon HD 7970”lol guys, get a 6970, its a lot cheaper
Do want! But still, then I have to invest in a new Mobo, and then it would be about double the price of a 6990
6990 > 7970
2x 6970 > 6990 > 7970
But they are so loud :S