GeForce GTX 750 vs Radeon HD 5870

Intro

Compare that to the Radeon HD 5870, which makes use of a 40 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 RAM runs at a frequency of 1200 MHz on this particular card. It features 1600(320x5) SPUs as well as 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon HD 5870		188 Watts
	Difference: 133 Watts (242%)

Memory Bandwidth

The Radeon HD 5870, in theory, should perform a lot faster than the GeForce GTX 750 overall. (explain)

Radeon HD 5870		153600 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 73600 (92%)

Texel Rate

The Radeon HD 5870 will be quite a bit (about 108%) better at AF than the GeForce GTX 750. (explain)

Radeon HD 5870		68000 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 35360 (108%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 5870 is a better choice, and very much so. (explain)

Radeon HD 5870		27200 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 10880 (67%)

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 MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.