GeForce GTX 260 216SP 55 nm vs Radeon HD 6570 (OEM) 1GB

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
GeForce GTX 260 216SP 55 nm		171 Watts
	Difference: 121 Watts (242%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 216SP 55 nm should be a lot faster than the Radeon HD 6570 (OEM) 1GB overall. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 83088 (289%)

Texel Rate

The GeForce GTX 260 216SP 55 nm is much (about 166%) faster with regards to anisotropic filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 25872 (166%)

Pixel Rate

The GeForce GTX 260 216SP 55 nm will be a lot (approximately 210%) more effective at FSAA than the Radeon HD 6570 (OEM) 1GB, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 10928 (210%)

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: Bandwidth is the max amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.