Nvidia Titan X vs Radeon R9 380X

Intro

Compare those specifications to the Radeon R9 380X, which features a clock speed of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X		190 Watts
Nvidia Titan X		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

The Nvidia Titan X should in theory be much faster than the Radeon R9 380X overall. (explain)

Nvidia Titan X		491520 MB/sec
Radeon R9 380X		182400 MB/sec
	Difference: 309120 (169%)

Texel Rate

The Nvidia Titan X should be a lot (about 156%) better at AF than the Radeon R9 380X. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon R9 380X		124160 Mtexels/sec
	Difference: 193248 (156%)

Pixel Rate

The Nvidia Titan X will be quite a bit (about 338%) more effective at anti-aliasing than the Radeon R9 380X, and also capable of handling higher resolutions without slowing down too much. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 380X		31040 Mpixels/sec
	Difference: 104992 (338%)

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 largest amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video 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 number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.