Compare any two graphics cards:
Geforce GTX 670 vs Radeon HD 7850
IntroThe Geforce GTX 670 comes with a clock frequency of 915 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is made up of 1344 SPUs, 112 TAUs, and 32 Raster Operation Units.
Compare those specifications to the Radeon HD 7850, which uses a 28 nm design. ATi has set the core frequency at 860 MHz. The GDDR5 RAM runs at a frequency of 1200 MHz on this card. It features 1024 SPUs along with 64 Texture Address Units and 32 Rasterization Operator Units.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
Performance-wise, the Geforce GTX 670 should theoretically be much superior to the Radeon HD 7850 overall. (explain)
Texel RateThe Geforce GTX 670 will be much (approximately 86%) more effective at AF than the Radeon HD 7850. (explain)
Pixel RateThe Geforce GTX 670 is a bit (more or less 6%) more effective at AA than the Radeon HD 7850, and also able to handle 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.
Price ComparisonPlease 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.
Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.