GeForce GTS 150 vs GeForce GTX 570

Intro

Compare all that to the GeForce GTX 570, which has a clock speed of 732 MHz and a GDDR5 memory speed of 950 MHz. It also makes use of a 320-bit bus, and makes use of a 40 nm design. It features 480 SPUs, 60 TAUs, and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
GeForce GTX 570		219 Watts
	Difference: 78 Watts (55%)

Memory Bandwidth

The GeForce GTX 570 should theoretically be quite a bit faster than the GeForce GTS 150 overall. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 120000 (375%)

Texel Rate

The GeForce GTS 150 will be a bit (approximately 8%) more effective at anisotropic filtering than the GeForce GTX 570. (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce GTX 570		43920 Mtexels/sec
	Difference: 3440 (8%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 570 is the winner, by a large margin. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 17440 (147%)

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 past the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units 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 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 ability to reach the max fill rate.