Compare any two graphics cards:
GeForce GT 340 1GB vs Radeon HD 6570 (OEM) 2GB
IntroThe GeForce GT 340 1GB uses a 40 nm design. nVidia has set the core speed at 550 MHz. The GDDR5 RAM runs at a frequency of 850 MHz on this card. It features 96 SPUs along with 32 Texture Address Units and 8 ROPs.Compare all of that to the Radeon HD 6570 (OEM) 2GB, which uses a 40 nm design. ATi has clocked the core speed at 650 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this card. It features 480 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthTheoretically, the Radeon HD 6570 (OEM) 2GB should be a small bit faster than the GeForce GT 340 1GB overall. (explain)
Texel RateThe GeForce GT 340 1GB is a little bit (approximately 13%) better at AF than the Radeon HD 6570 (OEM) 2GB. (explain)
Pixel RateIf running with lots of anti-aliasing is important to you, then the Radeon HD 6570 (OEM) 2GB is superior to the GeForce GT 340 1GB, 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 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.
Specifications
Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions. Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card 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 in a second. Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could 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 ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
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