GeForce GTX 650 vs Radeon HD 5570

Intro

Compare those specs to the Radeon HD 5570, which features a clock speed of 650 MHz and a DDR3 memory frequency of 900 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up of 400(80x5) SPUs, 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 650		64 Watts
	Difference: 21 Watts (49%)

Memory Bandwidth

The GeForce GTX 650, in theory, should perform a lot faster than the Radeon HD 5570 overall. (explain)

GeForce GTX 650		80000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 51200 (178%)

Texel Rate

The GeForce GTX 650 should be much (about 160%) faster with regards to AF than the Radeon HD 5570. (explain)

GeForce GTX 650		33856 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 20856 (160%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 650 is superior to the Radeon HD 5570, by far. (explain)

GeForce GTX 650		16928 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 11728 (226%)

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 (in units of MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the 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 graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.