Radeon HD 6790 vs Radeon R9 Nano

Intro

Compare all of that to the Radeon R9 Nano, which features core clock speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM RAM. It features 4096 SPUs along with 256 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 Nano		14918 points
Radeon HD 6790		2150 points
	Difference: 12768 (594%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
Radeon R9 Nano		175 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 Nano should perform quite a bit faster than the Radeon HD 6790 overall. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 377600 (281%)

Texel Rate

The Radeon R9 Nano will be much (more or less 662%) faster with regards to anisotropic filtering than the Radeon HD 6790. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 222400 (662%)

Pixel Rate

The Radeon R9 Nano will be much (about 376%) better at AA than the Radeon HD 6790, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 50560 (376%)

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 (counted in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.