GeForce GTX 650 Ti vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which has core clock speeds of 900 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 35 Watts (47%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M280X should in theory be a little bit better than the GeForce GTX 650 Ti in general. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 1600 (2%)

Texel Rate

The GeForce GTX 650 Ti is a bit (approximately 18%) better at AF than the Radeon R9 M280X. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
Radeon R9 M280X		50400 Mtexels/sec
	Difference: 8992 (18%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 650 Ti is the winner, not by a very large margin though. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 448 (3%)

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 maximum amount of information (measured in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units by the core 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 per second.

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