Compare any two graphics cards:
Radeon HD 5870 vs Radeon HD 6870
IntroThe Radeon HD 5870 features a clock speed of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 1600(320x5) SPUs, 80 TAUs, and 32 ROPs.Compare those specifications to the Radeon HD 6870, which uses a 40 nm design. AMD has set the core frequency at 900 MHz. The GDDR5 RAM runs at a frequency of 1050 MHz on this specific card. It features 1120 SPUs along with 56 TAUs and 32 Rasterization Operator Units.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthIn theory, the Radeon HD 5870 is 14% quicker than the Radeon HD 6870 overall, because of its greater data rate. (explain)
Texel RateThe Radeon HD 5870 should be quite a bit (more or less 35%) faster with regards to AF than the Radeon HD 6870. (explain)
Pixel RateIf using high levels of AA is important to you, then the Radeon HD 6870 is a better choice, but it probably won't make a huge difference. (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 data (counted in MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions. Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second. Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out 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 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 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 5870 vs Radeon HD 6870”[...] [...]
[...] Here is a theoretical comparison, that has always seemed pretty close to real world performance. Radeon HD 5870 vs Radeon HD 6870 – Performance Comparison Benchmarks @ Hardware Compare If you can wait till this evening, we do have some real experts, and you won't be disappointed. [...]
[...] Posted by Lemon hahahaha that's a 5870 loser Idiot, see this: Radeon HD 5870 vs Radeon HD 6870 ***8211; Performance Comparison Benchmarks @ Hardware Compare 5870 is better than 6870, I think it may be better than all but the 6900 series [...]
[...] more efficient in terms of power consumption compared to a 5870 (unless I've overlooked something) Radeon HD 5870 vs Radeon HD 6870 – Performance Comparison Benchmarks @ Hardware Compare Definitely will be aiming for a used card, hopefully some fellow Canucks will sell their cards to [...]
Real world shows the 6870 will deliver better performance over its sibling at high res': http://www.techspot.com/review/325-amd-radeon-6870/page8.html