Radeon Pro Duo vs Radeon R9 295X2

Intro

Compare that to the Radeon R9 295X2, which features a GPU core clock 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

Performance-wise, the Radeon Pro Duo should theoretically 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 will be much (more or less 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 is just a bit (approximately 2%) more effective at anti-aliasing than the Radeon Pro Duo, and also should be capable of handling higher resolutions without losing too much performance. (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 maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR 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 texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.