GeForce GTX 465 vs Radeon R9 Nano

Intro

Compare those specs to the Radeon R9 Nano, which features core speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM memory. It features 4096 SPUs as well as 256 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano		175 Watts
GeForce GTX 465		200 Watts
	Difference: 25 Watts (14%)

Memory Bandwidth

Theoretically, the Radeon R9 Nano should perform a lot faster than the GeForce GTX 465 in general. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 409408 (399%)

Texel Rate

The Radeon R9 Nano should be a lot (approximately 859%) better at texture filtering than the GeForce GTX 465. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 229292 (859%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 Nano is the winner, by a large margin. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 44576 (229%)

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 maximum amount of data (in units of MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.