GeForce GT 220 GDDR3 vs Radeon R9 270X

Intro

Compare all of that to the Radeon R9 270X, which features clock speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
Radeon R9 270X		180 Watts
	Difference: 122 Watts (210%)

Memory Bandwidth

Performance-wise, the Radeon R9 270X should theoretically be a lot superior to the GeForce GT 220 GDDR3 in general. (explain)

Radeon R9 270X		179200 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 146816 (453%)

Texel Rate

The Radeon R9 270X will be quite a bit (more or less 700%) better at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

Radeon R9 270X		80000 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 70000 (700%)

Pixel Rate

The Radeon R9 270X is much (more or less 540%) faster with regards to AA than the GeForce GT 220 GDDR3, and will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 27000 (540%)

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 maximum amount of information (in units of megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it must 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could 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 speed of the card. ROPs (Raster Operations Pipelines - aka 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 of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.