GeForce GTS 450 vs GeForce GTX 580

Intro

Compare those specifications to the GeForce GTX 580, which features a core clock speed of 772 MHz and a GDDR5 memory frequency of 1002 MHz. It also makes use of a 384-bit bus, and makes use of a 40 nm design. It is comprised of 512 SPUs, 64 Texture Address Units, and 48 Raster Operation Units.

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

In theory, the GeForce GTX 580 should perform much faster than the GeForce GTS 450 overall. (explain)

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

Texel Rate

The GeForce GTX 580 is quite a bit (about 97%) better at AF than the GeForce GTS 450. (explain)

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

Pixel Rate

The GeForce GTX 580 should be quite a bit (about 196%) faster with regards to anti-aliasing than the GeForce GTS 450, and also will be able to handle higher screen resolutions more effectively. (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 data (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 are applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.