GeForce GTS 150 vs GeForce GTX 570

Intro

Compare all of that to the GeForce GTX 570, which comes with GPU clock speed of 732 MHz, and 1280 MB of GDDR5 RAM set to run at 950 MHz through a 320-bit bus. It also features 480 Stream Processors, 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 in theory be quite a bit faster 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 is just a bit (about 8%) better at texture filtering than the GeForce GTX 570. (explain)

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

Pixel Rate

The GeForce GTX 570 will be a lot (more or less 147%) more effective at FSAA than the GeForce GTS 150, and will be able to handle higher screen resolutions better. (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 (counted in megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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