GeForce GTX 280 vs GeForce GTX 750

Intro

Compare those specifications to the GeForce GTX 750, which uses a 28 nm design. nVidia has clocked the core speed at 1020 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this card. It features 512 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GTX 280		236 Watts
	Difference: 181 Watts (329%)

Memory Bandwidth

The GeForce GTX 280, in theory, should be a lot faster than the GeForce GTX 750 overall. (explain)

GeForce GTX 280		141696 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 61696 (77%)

Texel Rate

The GeForce GTX 280 will be a lot (approximately 48%) more effective at AF than the GeForce GTX 750. (explain)

GeForce GTX 280		48160 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 15520 (48%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 280 is a better choice, though not by far. (explain)

GeForce GTX 280		19264 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 2944 (18%)

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 max amount of data (in units of MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.