Compare any two graphics cards:
Radeon HD 6770 1GB vs Radeon HD 7770
IntroThe Radeon HD 6770 1GB uses a 40 nm design. AMD has set the core speed at 900 MHz. The GDDR5 memory is set to run at a speed of 1050 MHz on this particular model. It features 800 SPUs as well as 40 Texture Address Units and 16 ROPs.Compare those specs to the Radeon HD 7770, which features a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthTheoretically speaking, the Radeon HD 7770 should be a bit faster than the Radeon HD 6770 1GB in general. (explain)
Texel RateThe Radeon HD 7770 will be just a bit (more or less 11%) better at AF than the Radeon HD 6770 1GB. (explain)
Pixel RateThe Radeon HD 7770 is a small bit (more or less 11%) more effective at FSAA than the Radeon HD 6770 1GB, and also will be capable of handling higher screen resolutions better. (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 Comparison
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. Specifications
Display Specifications
Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions. Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the 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 amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 memory bandwidth is, the lower the ability to reach the max 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
5 Responses to “Radeon HD 6770 1GB vs Radeon HD 7770”Wonder if I can flash the 6770 to the 7770, Flashed a 5770 to a 6770, might be possible
Try it Viking2121, I dare you.
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U9DTSARDTSXRDTGSDUGDS8YAY8UIJKAIUSAG SYUASDSGYDSYGDGYDSTUDSUTASTUAS67AST6SA67 TAS 87AS7YSYUSIUAouaIUOauioaoaUHYAOIiOUIOzuyazi8u99a
seems legit , only ~9% difference...
and 7770 is about the same as GTX 460, of course in game benchmarks.
so i guess its not bad card...