GeForce GTX 580 3GB vs GeForce GTX 750

Intro

Compare all of that to the GeForce GTX 750, which has a core clock frequency of 1020 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 128-bit bus, and uses a 28 nm design. It features 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 189 Watts (344%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 580 3GB should in theory be quite a bit superior to the GeForce GTX 750 in general. (explain)

GeForce GTX 580 3GB		192384 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 112384 (140%)

Texel Rate

The GeForce GTX 580 3GB is quite a bit (approximately 51%) more effective at texture filtering than the GeForce GTX 750. (explain)

GeForce GTX 580 3GB		49408 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 16768 (51%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 580 3GB is a better choice, and very much so. (explain)

GeForce GTX 580 3GB		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 max amount of information (in units of MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.