GeForce GTS 450 vs GeForce GTX 580

Intro

Compare those specifications to the GeForce GTX 580, which makes use of a 40 nm design. nVidia has clocked the core frequency at 772 MHz. The GDDR5 RAM is set to run at a speed of 1002 MHz on this particular model. It features 512 SPUs along with 64 TAUs and 48 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 580		4956 points
GeForce GTS 450		1453 points
	Difference: 3503 (241%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
GeForce GTX 580		244 Watts
	Difference: 138 Watts (130%)

Memory Bandwidth

The GeForce GTX 580 should theoretically be a lot faster than the GeForce GTS 450 in general. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 134656 (233%)

Texel Rate

The GeForce GTX 580 should be a lot (approximately 97%) better at texture filtering than the GeForce GTS 450. (explain)

GeForce GTX 580		49408 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 24352 (97%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 580 is the winner, and very much so. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 24528 (196%)

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 maximum amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.