GeForce GT 320 vs Radeon R9 M280X

Intro

Compare those specs to the Radeon R9 M280X, which makes use of a 28 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM is set to run at a frequency of 1375 MHz on this specific model. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon R9 M280X		75 Watts
	Difference: 32 Watts (74%)

Memory Bandwidth

In theory, the Radeon R9 M280X will be 248% quicker than the GeForce GT 320 in general, due to its greater data rate. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 62720 (248%)

Texel Rate

The Radeon R9 M280X is quite a bit (approximately 289%) faster with regards to AF than the GeForce GT 320. (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 37440 (289%)

Pixel Rate

The Radeon R9 M280X should be quite a bit (more or less 233%) faster with regards to full screen anti-aliasing than the GeForce GT 320, and also should be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 M280X		14400 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 10080 (233%)

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 max amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of 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.