GeForce GTX 750 vs Radeon HD 5770

Intro

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

Display Graphs

Hide Graphs

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, the GeForce GTX 750 should be a 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 bit (more or less 4%) better at anisotropic filtering than the GeForce GTX 750. (explain)

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

Pixel Rate

The GeForce GTX 750 is just a bit (more or less 20%) faster with regards to full screen anti-aliasing than the Radeon HD 5770, and will be capable of handling higher screen resolutions while still performing well. (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 maximum amount of data (measured in MB per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should 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 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 worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.