Nvidia Titan X vs Radeon R9 290X

Intro

Compare those specifications to the Radeon R9 290X, which features core speeds of 800 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2816 SPUs along with 176 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Nvidia Titan X		250 Watts
Radeon R9 290X		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

The Nvidia Titan X should in theory be a lot faster than the Radeon R9 290X overall. (explain)

Nvidia Titan X		491520 MB/sec
Radeon R9 290X		320000 MB/sec
	Difference: 171520 (54%)

Texel Rate

The Nvidia Titan X should be much (about 125%) more effective at texture filtering than the Radeon R9 290X. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon R9 290X		140800 Mtexels/sec
	Difference: 176608 (125%)

Pixel Rate

The Nvidia Titan X is a lot (about 166%) better at AA than the Radeon R9 290X, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 290X		51200 Mpixels/sec
	Difference: 84832 (166%)

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 information (counted in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen 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 amount of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at 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 can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.