Nvidia Titan X vs Radeon R9 280X

Intro

Compare that to the Radeon R9 280X, which uses a 28 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this particular model. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the Nvidia Titan X should be 71% faster than the Radeon R9 280X overall, due to its greater bandwidth. (explain)

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

Texel Rate

The Nvidia Titan X will be a lot (approximately 192%) better at texture 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 (about 400%) better at FSAA than the Radeon R9 280X, and able to handle higher resolutions without slowing down too much. (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 data (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated 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 filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.