GeForce GTX 460 (OEM) vs Radeon R9 Nano

Intro

Compare all that to the Radeon R9 Nano, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The HBM memory runs at a speed of 500 MHz on this particular card. It features 4096 SPUs along with 256 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 (OEM)		150 Watts
Radeon R9 Nano		175 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

The Radeon R9 Nano, in theory, should perform much faster than the GeForce GTX 460 (OEM) in general. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 403200 (371%)

Texel Rate

The Radeon R9 Nano should be quite a bit (more or less 603%) more effective at texture filtering than the GeForce GTX 460 (OEM). (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 219600 (603%)

Pixel Rate

The Radeon R9 Nano is a lot (approximately 208%) better at AA than the GeForce GTX 460 (OEM), and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 43200 (208%)

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 max amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could 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 Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.