GeForce GTS 150 vs Radeon HD 6570 (OEM) 1GB

Intro

Compare those specifications to the Radeon HD 6570 (OEM) 1GB, which comes with clock speeds of 650 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 480 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
GeForce GTS 150		141 Watts
	Difference: 91 Watts (182%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 150 will be 11% faster than the Radeon HD 6570 (OEM) 1GB overall, due to its higher data rate. (explain)

GeForce GTS 150		32000 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The GeForce GTS 150 will be much (approximately 204%) better at texture filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 31760 (204%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTS 150 is the winner, by far. (explain)

GeForce GTS 150		11840 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 6640 (128%)

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 data (counted in megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.