Compare any two graphics cards:
GeForce GT 240 GDDR5 1GB vs Radeon HD 4830 1GB
IntroThe GeForce GT 240 GDDR5 1GB comes with a core clock frequency of 550 MHz and a GDDR5 memory frequency of 850 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It is comprised of 96 SPUs, 32 TAUs, and 8 ROPs.Compare all that to the Radeon HD 4830 1GB, which has a core clock frequency of 575 MHz and a GDDR4 memory speed of 900 MHz. It also makes use of a 256-bit bus, and makes use of a 55 nm design. It features 640(128x5) SPUs, 32 Texture Address Units, and 16 Raster Operation Units.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthAs far as performance goes, the Radeon HD 4830 1GB should in theory be a bit better than the GeForce GT 240 GDDR5 1GB in general. (explain)
Texel RateThe Radeon HD 4830 1GB should be just a bit (about 5%) better at AF than the GeForce GT 240 GDDR5 1GB. (explain)
Pixel RateThe Radeon HD 4830 1GB will be much (more or less 109%) faster with regards to AA than the GeForce GT 240 GDDR5 1GB, and also will be capable of handling higher 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 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 max amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 are applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 maximum number of pixels that the graphics card could 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to 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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