GeForce GTX 650 Ti 2GB vs Radeon HD 5570

Intro

Compare that to the Radeon HD 5570, which comes with GPU clock speed of 650 MHz, and 512 MB of DDR3 RAM running at 900 MHz through a 128-bit bus. It also features 400(80x5) SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 67 Watts (156%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 Ti 2GB is 200% faster than the Radeon HD 5570 in general, because of its greater bandwidth. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 57600 (200%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be a lot (more or less 357%) more effective at anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 46392 (357%)

Pixel Rate

The GeForce GTX 650 Ti 2GB will be much (more or less 186%) faster with regards to full screen anti-aliasing than the Radeon HD 5570, and able to handle higher resolutions while still performing well. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 9648 (186%)

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 max amount of data (counted in MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.