GeForce GTX Titan vs Radeon R9 M270X

Intro

Compare those specs to the Radeon R9 M270X, which has core clock speeds of 725 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX Titan should be 301% quicker than the Radeon R9 M270X in general, due to its greater bandwidth. (explain)

GeForce GTX Titan		288384 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 216384 (301%)

Texel Rate

The GeForce GTX Titan should be a lot (approximately 547%) more effective at texture filtering than the Radeon R9 M270X. (explain)

GeForce GTX Titan		187488 Mtexels/sec
Radeon R9 M270X		29000 Mtexels/sec
	Difference: 158488 (547%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX Titan is superior to the Radeon R9 M270X, by far. (explain)

GeForce GTX Titan		40176 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 28576 (246%)

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 maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.