Radeon HD 5570 vs Radeon R9 Nano

Intro

Compare those specifications to the Radeon R9 Nano, which comes with a core clock frequency of 1000 MHz and a HBM memory speed of 500 MHz. It also uses a 4096-bit memory bus, and uses a 28 nm design. It is made up of 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Radeon R9 Nano		175 Watts
	Difference: 132 Watts (307%)

Memory Bandwidth

Performance-wise, the Radeon R9 Nano should in theory be quite a bit better than the Radeon HD 5570 overall. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 483200 (1678%)

Texel Rate

The Radeon R9 Nano is much (more or less 1869%) better at anisotropic filtering than the Radeon HD 5570. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 243000 (1869%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 Nano is a better choice, by far. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 58800 (1131%)

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 MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at 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 card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.