GeForce GTX 660 Ti vs Radeon HD 3470 512MB

Intro

Compare those specs to the Radeon HD 3470 512MB, which has GPU core speed of 800 MHz, and 512 MB of GDDR3 memory set to run at 950 MHz through a 128-bit bus. It also features 40(8x5) Stream Processors, 4 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 Ti should in theory be much better than the Radeon HD 3470 512MB in general. (explain)

GeForce GTX 660 Ti		144000 MB/sec
Radeon HD 3470 512MB		30400 MB/sec
	Difference: 113600 (374%)

Texel Rate

The GeForce GTX 660 Ti should be a lot (more or less 3103%) more effective at texture filtering than the Radeon HD 3470 512MB. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 99280 (3103%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 660 Ti is a better choice, by a large margin. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 18760 (586%)

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 megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. 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 also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.