Compare any two graphics cards:
GeForce GT 430 1GB vs Radeon HD 4850 512MB
IntroThe GeForce GT 430 1GB makes use of a 40 nm design. nVidia has set the core speed at 700 MHz. The GDDR3 RAM works at a frequency of 900 MHz on this model. It features 96 SPUs as well as 16 TAUs and 4 Rasterization Operator Units.
Compare those specs to the Radeon HD 4850 512MB, which uses a 55 nm design. ATi has clocked the core frequency at 625 MHz. The GDDR3 RAM is set to run at a speed of 993 MHz on this specific model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
The Radeon HD 4850 512MB should in theory perform a lot faster than the GeForce GT 430 1GB in general. (explain)
Texel RateThe Radeon HD 4850 512MB will be much (approximately 123%) more effective at anisotropic filtering than the GeForce GT 430 1GB. (explain)
Pixel RateThe Radeon HD 4850 512MB should be quite a bit (more or less 257%) faster with regards to anti-aliasing than the GeForce GT 430 1GB, and also will be able to handle higher 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.
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 largest amount of data (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.