GeForce GTX 660 vs Radeon R9 Nano

Intro

Compare all that to the Radeon R9 Nano, which comes with core speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM memory. It features 4096 SPUs along with 256 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 Nano		14918 points
GeForce GTX 660		5063 points
	Difference: 9855 (195%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
Radeon R9 Nano		175 Watts
	Difference: 35 Watts (25%)

Memory Bandwidth

In theory, the Radeon R9 Nano will be 255% faster than the GeForce GTX 660 overall, due to its higher bandwidth. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 367808 (255%)

Texel Rate

The Radeon R9 Nano should be much (more or less 227%) faster with regards to anisotropic filtering than the GeForce GTX 660. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 177600 (227%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 Nano is superior to the GeForce GTX 660, by far. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 40480 (172%)

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.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.