Nvidia Titan X vs Radeon R9 Nano

Intro

Compare all of that to the Radeon R9 Nano, which comes with a clock frequency of 1000 MHz and a HBM memory speed of 500 MHz. It also features a 4096-bit memory bus, and makes use of a 28 nm design. It is comprised of 4096 SPUs, 256 TAUs, and 64 Raster Operation Units.

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 overall. (explain)

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

Texel Rate

The Nvidia Titan X will be a lot (approximately 24%) more effective at texture 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 running with a high screen resolution is important to you, then the Nvidia Titan X is superior to the Radeon R9 Nano, 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: Memory bandwidth is the max amount of information (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher 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 most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.