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Radeon HD 6970 vs Radeon HD 7970
Intro
The Radeon HD 6970 features a GPU core speed of 880 MHz, and the 2048 MB of GDDR5 memory is set to run at 1375 MHz through a 256-bit bus. It also features 1536 Stream Processors, 96 Texture Address Units, and 32 Raster Operation Units.Compare those specifications to the Radeon HD 7970, which has clock speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs 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 |
|
8225 points |
| Radeon HD 6970 |
|
3470 points |
|
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Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
The Radeon HD 7970 should in theory perform quite a bit faster than the Radeon HD 6970 in general. (explain)
| Radeon HD 7970 |
|
264000 MB/sec |
| Radeon HD 6970 |
|
176000 MB/sec |
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Texel Rate
The Radeon HD 7970 will be a lot (more or less 40%) better at anisotropic filtering than the Radeon HD 6970. (explain)| Radeon HD 7970 |
|
118400 Mtexels/sec |
| Radeon HD 6970 |
|
84480 Mtexels/sec |
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Pixel Rate
The Radeon HD 7970 should be a little bit (approximately 5%) more effective at FSAA than the Radeon HD 6970, and also will be able to handle higher screen resolutions without slowing down too much. (explain)| Radeon HD 7970 |
|
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 6970
Radeon HD 7970
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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.
Radeon HD 6970
Radeon HD 7970
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