Compare any two graphics cards:
GeForce 8400 GS 512MB vs GeForce 9500 GT DDR2
IntroThe GeForce 8400 GS 512MB comes with a GPU core clock speed of 650 MHz, and the 512 MB of DDR2 RAM is set to run at 400 MHz through a 64-bit bus. It also is comprised of 16 SPUs, 8 TAUs, and 4 ROPs.
Compare those specs to the GeForce 9500 GT DDR2, which comes with a GPU core clock speed of 550 MHz, and 256 MB of DDR2 RAM running at 500 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 Texture Address Units, and 8 ROPs.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
The GeForce 9500 GT DDR2, in theory, should perform a lot faster than the GeForce 8400 GS 512MB in general. (explain)
Texel RateThe GeForce 9500 GT DDR2 is much (more or less 69%) more effective at anisotropic filtering than the GeForce 8400 GS 512MB. (explain)
Pixel RateThe GeForce 9500 GT DDR2 will be much (more or less 69%) faster with regards to FSAA than the GeForce 8400 GS 512MB, and should be able to handle higher screen 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 (in units of megabytes per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.