GeForce GTS 450 1GB vs GeForce GTX 570

Intro

Compare all that 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 makes use of a 320-bit bus, and uses a 40 nm design. It is made up of 480 SPUs, 60 Texture Address Units, 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 be much faster than 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 should be much (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 running with high levels of AA is important to you, then the GeForce GTX 570 is superior to the GeForce GTS 450 1GB, by far. (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 maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount 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 number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.