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Radeon R9 295X2 vs Radeon R9 Nano

Intro

The Radeon R9 295X2 makes use of a 28 nm design. AMD has set the core frequency at 1018 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this particular model. It features 2816 SPUs as well as 176 TAUs and 64 ROPs.

Compare that to the Radeon R9 Nano, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The HBM memory is set to run at a frequency of 500 MHz on this model. It features 4096 SPUs along with 256 Texture Address Units and 64 ROPs.

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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

The Radeon R9 295X2 should in theory be a lot 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 will be much (more or less 40%) faster with regards to anisotropic 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 using lots of anti-aliasing is important to you, then the Radeon R9 295X2 is a better choice, and very much so. (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: Bandwidth is the max amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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, especially the memory bandwidth - the lower the memory 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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