Radeon Pro Duo vs Radeon R9 295X2

Intro

Compare those specifications to the Radeon R9 295X2, which features GPU core speed of 1018 MHz, and 4096 MB of GDDR5 memory set to run at 1250 MHz through a 512-bit bus. It also is made up of 2816 SPUs, 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

Theoretically speaking, the Radeon Pro Duo is 60% faster than the Radeon R9 295X2 in general, due to its greater bandwidth. (explain)

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

Texel Rate

The Radeon Pro Duo should be much (approximately 43%) faster with regards to anisotropic 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 using a high screen resolution 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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units of the card 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 in a second.

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