GeForce GTX 750 vs Radeon HD 5770

Intro

Compare those specifications to the Radeon HD 5770, which features core speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon HD 5770		108 Watts
	Difference: 53 Watts (96%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 750 should perform a little bit faster than the Radeon HD 5770 overall. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 3200 (4%)

Texel Rate

The Radeon HD 5770 is a little bit (approximately 4%) more effective at texture filtering than the GeForce GTX 750. (explain)

Radeon HD 5770		34000 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 1360 (4%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 750 is superior to the Radeon HD 5770, though only just barely. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 2720 (20%)

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 largest amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.