GeForce GTX 280 vs GeForce GTX 750

Intro

Compare all that to the GeForce GTX 750, which has clock speeds of 1020 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 512 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

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

In theory, the GeForce GTX 280 should be 77% quicker than the GeForce GTX 750 overall, due to its higher data rate. (explain)

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

Texel Rate

The GeForce GTX 280 should be quite a bit (more or less 48%) faster with regards to 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 the winner, 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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.