GeForce GT 315 vs Radeon R9 M280X

Intro

Compare that to the Radeon R9 M280X, which has clock speeds of 900 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon R9 M280X		75 Watts
	Difference: 23 Watts (44%)

Memory Bandwidth

The Radeon R9 M280X, in theory, should perform a lot faster than the GeForce GT 315 in general. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 62720 (248%)

Texel Rate

The Radeon R9 M280X should be quite a bit (approximately 404%) faster with regards to AF than the GeForce GT 315. (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 40400 (404%)

Pixel Rate

The Radeon R9 M280X is much (more or less 188%) more effective at FSAA than the GeForce GT 315, and also will be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 M280X		14400 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 9400 (188%)

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 (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour 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 many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.