GeForce GTS 450 1GB vs GeForce GTX 570

Intro

Compare all of that to the GeForce GTX 570, which comes with clock speeds of 732 MHz on the GPU, and 950 MHz on the 1280 MB of GDDR5 memory. It features 480 SPUs as well as 60 TAUs and 40 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce GTX 570		219 Watts
	Difference: 113 Watts (107%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 should perform quite a bit faster than the GeForce GTS 450 1GB in general. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 94272 (163%)

Texel Rate

The GeForce GTX 570 will be much (about 75%) faster with regards to anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 18864 (75%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 570 is superior to the GeForce GTS 450 1GB, and very much so. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 16752 (134%)

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 largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. It's 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 DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that can be applied in one second. This figure 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.