Geforce GTX 690 vs Radeon HD 5570

Intro

Compare all that to the Radeon HD 5570, which features a GPU core clock speed of 650 MHz, and 512 MB of DDR3 RAM set to run at 900 MHz through a 128-bit bus. It also features 400(80x5) Stream Processors, 20 TAUs, 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 690		300 Watts
	Difference: 257 Watts (598%)

Memory Bandwidth

The Geforce GTX 690, in theory, should perform quite a bit faster than the Radeon HD 5570 overall. (explain)

Geforce GTX 690		384512 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 355712 (1235%)

Texel Rate

The Geforce GTX 690 is a lot (more or less 1702%) more effective at anisotropic filtering than the Radeon HD 5570. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 221240 (1702%)

Pixel Rate

The Geforce GTX 690 should be much (approximately 1026%) more effective at anti-aliasing than the Radeon HD 5570, and should be capable of handling higher screen resolutions while still performing well. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 53360 (1026%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 are processed 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 this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.