Radeon Pro Duo vs Radeon R9 295X2

Intro

Compare all that to the Radeon R9 295X2, which uses a 28 nm design. AMD has clocked the core speed at 1018 MHz. The GDDR5 RAM works at a speed of 1250 MHz on this specific model. It features 2816 SPUs along with 176 TAUs and 64 ROPs.

Display Graphs

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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 295X2		21205 points
	Difference: 5962 (28%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon Pro Duo		350 Watts
Radeon R9 295X2		500 Watts
	Difference: 150 Watts (43%)

Memory Bandwidth

The Radeon Pro Duo should theoretically perform a lot faster than the Radeon R9 295X2 in general. (explain)

Radeon Pro Duo		1024000 MB/sec
Radeon R9 295X2		640000 MB/sec
	Difference: 384000 (60%)

Texel Rate

The Radeon Pro Duo will be a lot (about 43%) faster with regards to AF than the Radeon R9 295X2. (explain)

Radeon Pro Duo		512000 Mtexels/sec
Radeon R9 295X2		358336 Mtexels/sec
	Difference: 153664 (43%)

Pixel Rate

The Radeon R9 295X2 will be just a bit (about 2%) faster with regards to anti-aliasing than the Radeon Pro Duo, and capable of handling higher screen resolutions better. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon Pro Duo		128000 Mpixels/sec
	Difference: 2304 (2%)

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 max amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.