GeForce GTX 750 Ti vs Radeon HD 5570

Intro

Compare those specifications to the Radeon HD 5570, which has GPU core speed of 650 MHz, and 512 MB of DDR3 memory set to run at 900 MHz through a 128-bit bus. It also is made up of 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 750 Ti		60 Watts
	Difference: 17 Watts (40%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 750 Ti should in theory be much better than the Radeon HD 5570 in general. (explain)

GeForce GTX 750 Ti		86400 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 57600 (200%)

Texel Rate

The GeForce GTX 750 Ti will be quite a bit (more or less 214%) better at AF than the Radeon HD 5570. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 27800 (214%)

Pixel Rate

The GeForce GTX 750 Ti will be much (about 214%) more effective at AA than the Radeon HD 5570, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 11120 (214%)

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 information (in units of MB per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.