Compare any two graphics cards:
Radeon HD 3850 1GB vs Radeon HD 4830 512MB
IntroThe Radeon HD 3850 1GB makes use of a 55 nm design. AMD has clocked the core frequency at 668 MHz. The GDDR3 RAM runs at a frequency of 828 MHz on this card. It features 320(64x5) SPUs as well as 16 TAUs and 16 ROPs.Compare those specs to the Radeon HD 4830 512MB, which uses a 55 nm design. AMD has clocked the core frequency at 575 MHz. The GDDR3 memory is set to run at a speed of 900 MHz on this card. It features 640(128x5) SPUs as well as 32 Texture Address Units and 16 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthThe Radeon HD 4830 512MB should theoretically be just a bit faster than the Radeon HD 3850 1GB overall. (explain)
Texel RateThe Radeon HD 4830 512MB will be a lot (about 72%) faster with regards to AF than the Radeon HD 3850 1GB. (explain)
Pixel RateIf running with lots of anti-aliasing is important to you, then the Radeon HD 3850 1GB is a better choice, though only just barely. (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 (counted in megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions. Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second. Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. 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 quite a few other factors, especially the memory bandwidth of the card - the lower the 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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