GeForce GTX 280 vs GeForce GTX 750

Intro

Compare all of that to the GeForce GTX 750, which has core clock speeds of 1020 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs along with 32 Texture Address Units 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

Theoretically speaking, the GeForce GTX 280 will be 77% faster than the GeForce GTX 750 in general, because of its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX 280 will be quite a bit (about 48%) better at texture filtering than the GeForce GTX 750. (explain)

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

Pixel Rate

The GeForce GTX 280 should be a bit (more or less 18%) more effective at FSAA than the GeForce GTX 750, and also capable of handling higher resolutions without slowing down too much. (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 information (in units of MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, 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 maximum number of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.