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Radeon HD 6970 vs Radeon HD 7970
Intro
The Radeon HD 6970 has a clock frequency of 880 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It features 1536 SPUs, 96 Texture Address Units, and 32 ROPs.Compare all that to the Radeon HD 7970, which uses a 28 nm design. AMD has set the core speed at 925 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this particular card. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.
Benchmarks
These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
| Radeon HD 7970 |
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8225 points |
| Radeon HD 6970 |
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3470 points |
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Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
The Radeon HD 7970, in theory, should be a lot faster than the Radeon HD 6970 overall. (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 much (more or less 40%) better at 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
The Radeon HD 7970 will be a bit (about 5%) more effective at FSAA than the Radeon HD 6970, and capable of handling higher resolutions better. (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
Radeon HD 6970Amazon.com
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Radeon HD 7970Amazon.com
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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
Specifications
| Model | Radeon HD 6970 | Radeon HD 7970 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | December 2010 | January 2012 |
| Code Name | Cayman XT | Tahiti XT |
| Memory | 2048 MB | 3072 MB |
| Core Speed | 880 MHz | 925 MHz |
| Memory Speed | 5500 MHz | 5500 MHz |
| Power (Max TDP) | 250 watts | 250 watts |
| Bandwidth | 176000 MB/sec | 264000 MB/sec |
| Texel Rate | 84480 Mtexels/sec | 118400 Mtexels/sec |
| Pixel Rate | 28160 Mpixels/sec | 29600 Mpixels/sec |
| Unified Shaders | 1536 | 2048 |
| Texture Mapping Units | 96 | 128 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 384-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 2640 million | 4313 million |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.2 |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.
Radeon HD 6970Amazon.com
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Radeon HD 7970Amazon.com
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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
Comments
4 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
get 7970 and replace the cooler with arctic cooler 7970
cheaper than plus 2 or extreme