GeForce GTX 460 (OEM) vs Radeon HD 6570 (OEM) 1GB

Intro

Compare those specs to the Radeon HD 6570 (OEM) 1GB, which comes with a core clock speed of 650 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It is made up of 480 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 100 Watts (200%)

Memory Bandwidth

The GeForce GTX 460 (OEM) should theoretically be much faster than the Radeon HD 6570 (OEM) 1GB overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 80000 (278%)

Texel Rate

The GeForce GTX 460 (OEM) should be much (approximately 133%) better at anisotropic filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 20800 (133%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 460 (OEM) is superior to the Radeon HD 6570 (OEM) 1GB, by a large margin. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 15600 (300%)

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 MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can 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 Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.