GeForce GT 220 GDDR3 vs Radeon HD 3470 512MB

Intro

Compare that to the Radeon HD 3470 512MB, which features a core clock speed of 800 MHz and a GDDR3 memory speed of 950 MHz. It also uses a 128-bit bus, and uses a 55 nm design. It features 40(8x5) SPUs, 4 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GT 220 GDDR3 will be 7% faster than the Radeon HD 3470 512MB overall, due to its higher bandwidth. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
Radeon HD 3470 512MB		30400 MB/sec
	Difference: 1984 (7%)

Texel Rate

The GeForce GT 220 GDDR3 is a lot (approximately 213%) better at texture filtering than the Radeon HD 3470 512MB. (explain)

GeForce GT 220 GDDR3		10000 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 6800 (213%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 220 GDDR3 is a better choice, by far. (explain)

GeForce GT 220 GDDR3		5000 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 1800 (56%)

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 data (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.