Radeon Pro Duo vs Radeon R9 380X

Intro

Compare that to the Radeon R9 380X, which features a clock speed of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon Pro Duo		27167 points
Radeon R9 380X		9519 points
	Difference: 17648 (185%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X		190 Watts
Radeon Pro Duo		350 Watts
	Difference: 160 Watts (84%)

Memory Bandwidth

Theoretically speaking, the Radeon Pro Duo is 461% faster than the Radeon R9 380X overall, due to its greater bandwidth. (explain)

Radeon Pro Duo		1024000 MB/sec
Radeon R9 380X		182400 MB/sec
	Difference: 841600 (461%)

Texel Rate

The Radeon Pro Duo should be much (more or less 312%) faster with regards to anisotropic filtering than the Radeon R9 380X. (explain)

Radeon Pro Duo		512000 Mtexels/sec
Radeon R9 380X		124160 Mtexels/sec
	Difference: 387840 (312%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon Pro Duo is the winner, by a large margin. (explain)

Radeon Pro Duo		128000 Mpixels/sec
Radeon R9 380X		31040 Mpixels/sec
	Difference: 96960 (312%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated 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 is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.