Compare any two graphics cards:
GeForce 8600 GTS vs GeForce 9500 GT 512MB GDDR3
IntroThe GeForce 8600 GTS uses a 80 nm design. nVidia has clocked the core speed at 675 MHz. The GDDR3 memory runs at a speed of 1000 MHz on this particular model. It features 32 SPUs along with 16 TAUs and 8 ROPs.
Compare that to the GeForce 9500 GT 512MB GDDR3, which features GPU core speed of 550 MHz, and 512 MB of GDDR3 memory set to run at 800 MHz through a 128-bit bus. It also features 32 SPUs, 16 Texture Address Units, and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
The GeForce 8600 GTS should in theory perform quite a bit faster than the GeForce 9500 GT 512MB GDDR3 overall. (explain)
Texel RateThe GeForce 8600 GTS will be much (approximately 23%) more effective at texture filtering than the GeForce 9500 GT 512MB GDDR3. (explain)
Pixel RateThe GeForce 8600 GTS should be quite a bit (more or less 23%) better at FSAA than the GeForce 9500 GT 512MB GDDR3, and also will be capable of handling higher screen resolutions without losing too much performance. (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.
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.
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 a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.