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Radeon R9 295X2 vs Radeon R9 Nano

Intro

The Radeon R9 295X2 comes with a GPU clock speed of 1018 MHz, and the 4096 MB of GDDR5 RAM runs at 1250 MHz through a 512-bit bus. It also is made up of 2816 SPUs, 176 TAUs, and 64 ROPs.

Compare those specifications to the Radeon R9 Nano, which has GPU clock speed of 1000 MHz, and 4096 MB of HBM RAM set to run at 500 MHz through a 4096-bit bus. It also is made up of 4096 SPUs, 256 TAUs, and 64 Raster Operation Units.

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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 R9 295X2 21205 points
Radeon R9 Nano 14918 points
Difference: 6287 (42%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano 175 Watts
Radeon R9 295X2 500 Watts
Difference: 325 Watts (186%)

Memory Bandwidth

Theoretically, the Radeon R9 295X2 should be quite a bit faster than the Radeon R9 Nano overall. (explain)

Radeon R9 295X2 640000 MB/sec
Radeon R9 Nano 512000 MB/sec
Difference: 128000 (25%)

Texel Rate

The Radeon R9 295X2 is a lot (approximately 40%) better at texture filtering than the Radeon R9 Nano. (explain)

Radeon R9 295X2 358336 Mtexels/sec
Radeon R9 Nano 256000 Mtexels/sec
Difference: 102336 (40%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 295X2 is superior to the Radeon R9 Nano, by far. (explain)

Radeon R9 295X2 130304 Mpixels/sec
Radeon R9 Nano 64000 Mpixels/sec
Difference: 66304 (104%)

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

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Radeon R9 295X2

Amazon.com

Check prices at:

Radeon R9 Nano

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon R9 295X2 Radeon R9 Nano
Manufacturer AMD AMD
Year April 2014 September 2015
Code Name Vesuvius Fiji XT
Memory 4096 MB (x2) 4096 MB
Core Speed 1018 MHz (x2) 1000 MHz
Memory Speed 5000 MHz (x2) 500 MHz
Power (Max TDP) 500 watts 175 watts
Bandwidth 640000 MB/sec 512000 MB/sec
Texel Rate 358336 Mtexels/sec 256000 Mtexels/sec
Pixel Rate 130304 Mpixels/sec 64000 Mpixels/sec
Unified Shaders 2816 (x2) 4096
Texture Mapping Units 176 (x2) 256
Render Output Units 64 (x2) 64
Bus Type GDDR5 HBM
Bus Width 512-bit (x2) 4096-bit
Fab Process 28 nm 28 nm
Transistors 6200 million 8900 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at 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 that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon R9 295X2

Amazon.com

Check prices at:

Radeon R9 Nano

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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