Compare any two graphics cards:
Radeon HD 3650 vs Radeon HD 4650 1GB
IntroThe Radeon HD 3650 uses a 55 nm design. AMD has set the core speed at 725 MHz. The GDDR4 RAM runs at a frequency of 800 MHz on this model. It features 120(24x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.Compare those specs to the Radeon HD 4650 1GB, which makes use of a 55 nm design. AMD has clocked the core frequency at 600 MHz. The GDDR3 RAM works at a speed of 700 MHz on this card. It features 320(64x5) SPUs along with 32 TAUs and 8 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthAs far as performance goes, the Radeon HD 3650 should theoretically be a little bit superior to the Radeon HD 4650 1GB overall. (explain)
Texel RateThe Radeon HD 4650 1GB is a lot (more or less 231%) better at AF than the Radeon HD 3650. (explain)
Pixel RateThe Radeon HD 4650 1GB should be quite a bit (approximately 66%) more effective at FSAA than the Radeon HD 3650, and able to handle higher screen resolutions without slowing down too much. (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 maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 can be applied 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 per second. Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach 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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