GeForce GT 220 GDDR3 vs Radeon R9 M375X

Intro

Compare all that to the Radeon R9 M375X, which comes with a core clock frequency of 1015 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M375X should perform a lot faster than the GeForce GT 220 GDDR3 in general. (explain)

Radeon R9 M375X		72000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 39616 (122%)

Texel Rate

The Radeon R9 M375X is quite a bit (approximately 306%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

Radeon R9 M375X		40600 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 30600 (306%)

Pixel Rate

The Radeon R9 M375X should be quite a bit (approximately 225%) more effective at full screen anti-aliasing than the GeForce GT 220 GDDR3, and will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 M375X		16240 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 11240 (225%)

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 transferred across the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card by the core clock 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 could possibly write to its local memory per 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 drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.