GeForce GT 220 GDDR3 vs Radeon HD 5570

Intro

Compare those specs to the Radeon HD 5570, which features core speeds of 650 MHz on the GPU, and 900 MHz on the 512 MB of DDR3 memory. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GT 220 GDDR3		58 Watts
	Difference: 15 Watts (35%)

Memory Bandwidth

As far as performance goes, the GeForce GT 220 GDDR3 should theoretically be just a bit better than the Radeon HD 5570 in general. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 3584 (12%)

Texel Rate

The Radeon HD 5570 is quite a bit (more or less 30%) faster with regards to anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

Radeon HD 5570		13000 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 3000 (30%)

Pixel Rate

The Radeon HD 5570 is a little bit (more or less 4%) better at AA than the GeForce GT 220 GDDR3, and also should be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 5570		5200 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 200 (4%)

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 (counted in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.