Radeon HD 5670 vs Radeon R9 Nano

Intro

Compare all of that to the Radeon R9 Nano, which features clock 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 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Radeon R9 Nano		175 Watts
	Difference: 114 Watts (187%)

Memory Bandwidth

The Radeon R9 Nano, in theory, should perform quite a bit faster than the Radeon HD 5670 in general. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 448000 (700%)

Texel Rate

The Radeon R9 Nano should be much (approximately 1552%) faster with regards to anisotropic filtering than the Radeon HD 5670. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 240500 (1552%)

Pixel Rate

The Radeon R9 Nano should be much (about 932%) more effective at FSAA than the Radeon HD 5670, and also able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 57800 (932%)

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 largest amount of information (measured in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics 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 maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.