GeForce GTX 580 vs GeForce GTX 750

Intro

Compare those specs to the GeForce GTX 750, which comes with a GPU core clock speed of 1020 MHz, and 1024 MB of GDDR5 memory running at 1250 MHz through a 128-bit bus. It also is made up of 512 SPUs, 32 Texture Address Units, and 16 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 GTX 750		3958 points
	Difference: 998 (25%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GTX 580		244 Watts
	Difference: 189 Watts (344%)

Memory Bandwidth

The GeForce GTX 580 should theoretically perform a lot faster than the GeForce GTX 750 overall. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 112384 (140%)

Texel Rate

The GeForce GTX 580 is quite a bit (approximately 51%) faster with regards to AF than the GeForce GTX 750. (explain)

GeForce GTX 580		49408 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 16768 (51%)

Pixel Rate

The GeForce GTX 580 should be a lot (more or less 127%) faster with regards to anti-aliasing than the GeForce GTX 750, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 20736 (127%)

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 data (in units of megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the 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 the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). 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 maximum fill rate.