GeForce GTX Titan Black vs Radeon R9 M280X

Intro

Compare those specs to the Radeon R9 M280X, which features a clock frequency of 900 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the GeForce GTX Titan Black should be 282% faster than the Radeon R9 M280X overall, due to its higher bandwidth. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon R9 M280X		88000 MB/sec
	Difference: 248000 (282%)

Texel Rate

The GeForce GTX Titan Black should be quite a bit (approximately 323%) faster with regards to AF than the Radeon R9 M280X. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon R9 M280X		50400 Mtexels/sec
	Difference: 162960 (323%)

Pixel Rate

The GeForce GTX Titan Black will be quite a bit (approximately 196%) faster with regards to anti-aliasing than the Radeon R9 M280X, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 28272 (196%)

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 largest amount of information (counted in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.