Compare any two graphics cards:
Radeon HD 3650 256MB vs Radeon HD 6450 (OEM) 1GB
IntroThe Radeon HD 3650 256MB has a clock frequency of 725 MHz and a DDR2 memory frequency of 800 MHz. It also features a 128-bit memory bus, and uses a 55 nm design. It is comprised of 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.Compare all that to the Radeon HD 6450 (OEM) 1GB, which comes with a core clock frequency of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 64-bit bus, and uses a 40 nm design. It is made up of 160 SPUs, 8 Texture Address Units, and 4 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthAs far as performance goes, the Radeon HD 6450 (OEM) 1GB should theoretically be a bit superior to the Radeon HD 3650 256MB in general. (explain)
Texel RateThe Radeon HD 6450 (OEM) 1GB will be a little bit (more or less 3%) more effective at AF than the Radeon HD 3650 256MB. (explain)
Pixel RateIf using lots of anti-aliasing is important to you, then the Radeon HD 6450 (OEM) 1GB is the winner, but it probably won't make a huge difference. (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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions. Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second. Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential 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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