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 frequency at 1018 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this specific model. It features 2816 SPUs as well as 176 Texture Address Units 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

As far as performance goes, the Radeon Pro Duo should in theory be much superior to the Radeon R9 295X2 overall. (explain)

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

Texel Rate

The Radeon Pro Duo is quite a bit (more or less 43%) faster with regards to texture filtering than the Radeon R9 295X2. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 295X2 is the winner, but only just. (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 (measured in megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.