GeForce GT 220 GDDR3 vs Radeon R9 380 4G

Intro

Compare all of that to the Radeon R9 380 4G, which has GPU core speed of 970 MHz, and 4096 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also is comprised of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
Radeon R9 380 4G		190 Watts
	Difference: 132 Watts (228%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380 4G is 463% faster than the GeForce GT 220 GDDR3 in general, because of its higher bandwidth. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 150016 (463%)

Texel Rate

The Radeon R9 380 4G will be quite a bit (approximately 986%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 98640 (986%)

Pixel Rate

The Radeon R9 380 4G is much (about 521%) faster with regards to full screen anti-aliasing than the GeForce GT 220 GDDR3, and able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 26040 (521%)

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 max amount of data (in units of megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units of the card 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.