GeForce GTX 280 vs GeForce GTX 750

Intro

Compare those specifications to the GeForce GTX 750, which makes use of a 28 nm design. nVidia has clocked the core frequency at 1020 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this particular model. 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

Performance-wise, the GeForce GTX 280 should in theory be much better 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 much (more or less 48%) more effective at anisotropic filtering 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 high levels of AA is important to you, then the GeForce GTX 280 is the winner, but only just. (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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that 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 amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.