GeForce GT 220 GDDR3 vs Radeon R9 M365X

Intro

Compare that to the Radeon R9 M365X, which comes with a clock frequency of 925 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M365X should be much faster than the GeForce GT 220 GDDR3 overall. (explain)

Radeon R9 M365X		72000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 39616 (122%)

Texel Rate

The Radeon R9 M365X should be quite a bit (about 270%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

Radeon R9 M365X		37000 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 27000 (270%)

Pixel Rate

The Radeon R9 M365X will be a lot (more or less 196%) better at anti-aliasing than the GeForce GT 220 GDDR3, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 M365X		14800 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 9800 (196%)

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 information (in units of MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, 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 calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.