GeForce GTX 285 1GB 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 RAM. It features 4096 SPUs along with 256 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano		175 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 29 Watts (17%)

Memory Bandwidth

Performance-wise, the Radeon R9 Nano should theoretically be a lot superior to the GeForce GTX 285 1GB overall. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 285 1GB		158976 MB/sec
	Difference: 353024 (222%)

Texel Rate

The Radeon R9 Nano should be a lot (approximately 394%) faster with regards to anisotropic filtering than the GeForce GTX 285 1GB. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 204160 (394%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 Nano is the winner, and very much so. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 43264 (209%)

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: Bandwidth is the max amount of data (counted in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should 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, High Dynamic Range and higher screen resolutions.

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