Radeon R9 295X2 vs Radeon R9 Nano

Intro

Compare all that to the Radeon R9 Nano, which features a core clock speed of 1000 MHz and a HBM memory speed of 500 MHz. It also features a 4096-bit bus, and uses a 28 nm design. It features 4096 SPUs, 256 Texture Address Units, and 64 Raster Operation Units.

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 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 speaking, the Radeon R9 295X2 should be 25% faster than the Radeon R9 Nano overall, due to its higher data rate. (explain)

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

Texel Rate

The Radeon R9 295X2 is quite a bit (more or less 40%) faster with regards to AF than the Radeon R9 Nano. (explain)

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

Pixel Rate

The Radeon R9 295X2 should be quite a bit (more or less 104%) better at AA than the Radeon R9 Nano, and will be able to handle higher screen resolutions without losing too much performance. (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

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.