Nvidia Titan X vs Radeon R9 380 4G

Intro

Compare those specs to the Radeon R9 380 4G, which uses a 28 nm design. AMD has set the core frequency at 970 MHz. The GDDR5 RAM is set to run at a frequency of 1425 MHz on this model. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G		190 Watts
Nvidia Titan X		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

The Nvidia Titan X should theoretically be much faster than the Radeon R9 380 4G overall. (explain)

Nvidia Titan X		491520 MB/sec
Radeon R9 380 4G		182400 MB/sec
	Difference: 309120 (169%)

Texel Rate

The Nvidia Titan X is a lot (about 192%) better at AF than the Radeon R9 380 4G. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon R9 380 4G		108640 Mtexels/sec
	Difference: 208768 (192%)

Pixel Rate

If running with high levels of AA is important to you, then the Nvidia Titan X is the winner, and very much so. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 380 4G		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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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 - the lower the bandwidth is, the lower the potential to reach the max fill rate.