GeForce GTS 250 512MB vs GeForce GTX 750

Intro

Compare those specs to the GeForce GTX 750, which uses a 28 nm design. nVidia has set the core speed at 1020 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this card. It features 512 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GTS 250 512MB		145 Watts
	Difference: 90 Watts (164%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 750 should be a bit faster than the GeForce GTS 250 512MB overall. (explain)

GeForce GTX 750		80000 MB/sec
GeForce GTS 250 512MB		70400 MB/sec
	Difference: 9600 (14%)

Texel Rate

The GeForce GTS 250 512MB should be quite a bit (approximately 45%) more effective at AF than the GeForce GTX 750. (explain)

GeForce GTS 250 512MB		47232 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 14592 (45%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 750 is superior to the GeForce GTS 250 512MB, by far. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce GTS 250 512MB		11808 Mpixels/sec
	Difference: 4512 (38%)

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 (measured in MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.