Nvidia Titan X vs Radeon R9 280X

Intro

Compare those specifications to the Radeon R9 280X, which features GPU core speed of 850 MHz, and 3072 MB of GDDR5 memory running at 1500 MHz through a 384-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the Nvidia Titan X should perform a lot faster than the Radeon R9 280X overall. (explain)

Nvidia Titan X		491520 MB/sec
Radeon R9 280X		288000 MB/sec
	Difference: 203520 (71%)

Texel Rate

The Nvidia Titan X is much (more or less 192%) more effective at anisotropic filtering than the Radeon R9 280X. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 208608 (192%)

Pixel Rate

The Nvidia Titan X is quite a bit (more or less 400%) faster with regards to FSAA than the Radeon R9 280X, and also capable of handling higher resolutions more effectively. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 108832 (400%)

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 megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 per second. This is calculated by multiplying the total amount of texture units 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 - the lower the bandwidth is, the lower the ability to get to the max fill rate.