GeForce GTX 650 vs Radeon HD 6570 (OEM) 2GB

Intro

Compare all that to the Radeon HD 6570 (OEM) 2GB, which makes use of a 40 nm design. AMD has clocked the core frequency at 650 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this card. It features 480 SPUs as well as 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
GeForce GTX 650		64 Watts
	Difference: 14 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 will be 25% faster than the Radeon HD 6570 (OEM) 2GB in general, due to its greater data rate. (explain)

GeForce GTX 650		80000 MB/sec
Radeon HD 6570 (OEM) 2GB		64000 MB/sec
	Difference: 16000 (25%)

Texel Rate

The GeForce GTX 650 is quite a bit (approximately 117%) faster with regards to AF than the Radeon HD 6570 (OEM) 2GB. (explain)

GeForce GTX 650		33856 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 18256 (117%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 650 is superior to the Radeon HD 6570 (OEM) 2GB, and very much so. (explain)

GeForce GTX 650		16928 Mpixels/sec
Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
	Difference: 11728 (226%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the 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 record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.