GeForce GTX 750 vs Geforce GTX 680

Intro

Compare that to the Geforce GTX 680, which uses a 28 nm design. nVidia has set the core frequency at 1006 MHz. The GDDR5 RAM is set to run at a speed of 1502 MHz on this specific model. It features 1536 SPUs as well as 128 TAUs and 32 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 680		7650 points
GeForce GTX 750		3958 points
	Difference: 3692 (93%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Geforce GTX 680		195 Watts
	Difference: 140 Watts (255%)

Memory Bandwidth

In theory, the Geforce GTX 680 should perform quite a bit faster than the GeForce GTX 750 in general. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 112256 (140%)

Texel Rate

The Geforce GTX 680 is quite a bit (about 295%) faster with regards to anisotropic filtering than the GeForce GTX 750. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 96128 (295%)

Pixel Rate

The Geforce GTX 680 should be quite a bit (approximately 97%) more effective at AA than the GeForce GTX 750, and capable of handling higher resolutions without slowing down too much. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 15872 (97%)

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 (in units of MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output 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 max fill rate.