Nvidia Titan X vs Radeon R9 270

Intro

Compare that to the Radeon R9 270, which features a GPU core clock speed of 900 MHz, and 2048 MB of GDDR5 RAM running at 1400 MHz through a 256-bit bus. It also is made up of 1280 SPUs, 80 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
Nvidia Titan X		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

The Nvidia Titan X should theoretically perform much faster than the Radeon R9 270 overall. (explain)

Nvidia Titan X		491520 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 312320 (174%)

Texel Rate

The Nvidia Titan X should be quite a bit (approximately 341%) more effective at anisotropic filtering than the Radeon R9 270. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 245408 (341%)

Pixel Rate

The Nvidia Titan X is much (about 372%) more effective at AA than the Radeon R9 270, and also will be able to handle higher screen resolutions more effectively. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 107232 (372%)

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 data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.