GeForce GTX Titan vs Radeon R9 M280X

Intro

Compare those specs to the Radeon R9 M280X, which comes with GPU clock speed of 900 MHz, and 4096 MB of GDDR5 RAM running at 1375 MHz through a 128-bit bus. It also features 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
GeForce GTX Titan		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

Performance-wise, the GeForce GTX Titan should theoretically be a lot superior to the Radeon R9 M280X overall. (explain)

GeForce GTX Titan		288384 MB/sec
Radeon R9 M280X		88000 MB/sec
	Difference: 200384 (228%)

Texel Rate

The GeForce GTX Titan will be much (more or less 272%) faster with regards to anisotropic filtering than the Radeon R9 M280X. (explain)

GeForce GTX Titan		187488 Mtexels/sec
Radeon R9 M280X		50400 Mtexels/sec
	Difference: 137088 (272%)

Pixel Rate

The GeForce GTX Titan is a lot (about 179%) better at FSAA than the Radeon R9 M280X, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan		40176 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 25776 (179%)

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 information (counted in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.