GeForce GTS 150 vs GeForce GTX 570

Intro

Compare those specifications to the GeForce GTX 570, which comes with a core clock frequency of 732 MHz and a GDDR5 memory speed of 950 MHz. It also features a 320-bit memory bus, and uses a 40 nm design. It features 480 SPUs, 60 Texture Address Units, 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

Performance-wise, the GeForce GTX 570 should theoretically be a lot better than the GeForce GTS 150 in general. (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 little bit (about 8%) faster with regards to AF 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 high levels of AA 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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the 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 the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.