Nvidia Titan X vs Radeon R9 Nano

Intro

Compare all that to the Radeon R9 Nano, which features a clock speed of 1000 MHz and a HBM memory speed of 500 MHz. It also features a 4096-bit bus, and uses a 28 nm design. It is made up of 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano		175 Watts
Nvidia Titan X		250 Watts
	Difference: 75 Watts (43%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 Nano should be a bit faster than the Nvidia Titan X in general. (explain)

Radeon R9 Nano		512000 MB/sec
Nvidia Titan X		491520 MB/sec
	Difference: 20480 (4%)

Texel Rate

The Nvidia Titan X will be quite a bit (approximately 24%) more effective at anisotropic filtering than the Radeon R9 Nano. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon R9 Nano		256000 Mtexels/sec
	Difference: 61408 (24%)

Pixel Rate

If using high levels of AA is important to you, then the Nvidia Titan X is the winner, by far. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 Nano		64000 Mpixels/sec
	Difference: 72032 (113%)

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 max amount of information (counted in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core 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 quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.