Compare any two graphics cards:
Radeon HD 7970 vs Radeon HD 7990
IntroThe Radeon HD 7970 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 along with 128 TAUs and 32 ROPs.Compare those specs to the Radeon HD 7990, which makes use of a 28 nm design. AMD has clocked the core speed at 950 MHz. The GDDR5 memory runs at a speed of 1500 MHz on this specific card. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.
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BenchmarksThese 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
Ethereum Mining Hash Rate
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthTheoretically speaking, the Radeon HD 7990 will be 118% quicker than the Radeon HD 7970 overall, because of its higher bandwidth. (explain)
Texel RateThe Radeon HD 7990 is much (about 105%) better at AF than the Radeon HD 7970. (explain)
Pixel RateThe Radeon HD 7990 will be a lot (more or less 105%) better at FSAA than the Radeon HD 7970, and will be capable of handling higher resolutions more effectively. (explain)
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. One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of. Price Comparison
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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
Display Specifications
Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second. Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.
Display Prices
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.
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Comments
2 Responses to “Radeon HD 7970 vs Radeon HD 7990”if you havea ny of these cards get evga precision, push the voltage to the highest and notice the 20+fps difference (bf3)
i am getting the 7970 and my friend is getting the 7990, the 7990 is double the 7970 but is also double the price. both cards look very good it just depends on your budget.