GeForce GTS 450 1GB vs GeForce GTX 570

Intro

Compare all of that to the GeForce GTX 570, which uses a 40 nm design. nVidia has clocked the core frequency at 732 MHz. The GDDR5 RAM is set to run at a speed of 950 MHz on this specific card. It features 480 SPUs along with 60 Texture Address Units and 40 Rasterization Operator Units.

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

As far as performance goes, the GeForce GTX 570 should theoretically be a lot superior to the GeForce GTS 450 1GB overall. (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 a lot (more or less 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 a high resolution is important to you, then the GeForce GTX 570 is superior to the GeForce GTS 450 1GB, by a large margin. (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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, 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 most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.