Compare any two graphics cards:
GeForce 8400 GS 512MB vs GeForce 9600 GT 1GB
IntroThe GeForce 8400 GS 512MB comes with a GPU clock speed of 650 MHz, and the 512 MB of DDR2 memory is set to run at 400 MHz through a 64-bit bus. It also features 16 Stream Processors, 8 Texture Address Units, and 4 Raster Operation Units.
Compare those specifications to the GeForce 9600 GT 1GB, which comes with GPU clock speed of 650 MHz, and 1024 MB of GDDR3 memory set to run at 900 MHz through a 256-bit bus. It also is made up of 64 SPUs, 32 TAUs, and 16 Raster Operation Units.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
The GeForce 9600 GT 1GB should in theory be quite a bit faster than the GeForce 8400 GS 512MB in general. (explain)
Texel RateThe GeForce 9600 GT 1GB should be a lot (about 300%) more effective at anisotropic filtering than the GeForce 8400 GS 512MB. (explain)
Pixel RateIf running with a high screen resolution is important to you, then the GeForce 9600 GT 1GB is superior to the GeForce 8400 GS 512MB, by a large margin. (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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 can be processed in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 get to the max fill rate.