Radeon HD 7770 vs Radeon R9 Nano

Intro

Compare all of that to the Radeon R9 Nano, which has clock speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM RAM. It features 4096 SPUs as well as 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 7770		3180 points
	Difference: 11738 (369%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770		80 Watts
Radeon R9 Nano		175 Watts
	Difference: 95 Watts (119%)

Memory Bandwidth

Performance-wise, the Radeon R9 Nano should theoretically be much better than the Radeon HD 7770 overall. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 440000 (611%)

Texel Rate

The Radeon R9 Nano is much (approximately 540%) faster with regards to AF than the Radeon HD 7770. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 216000 (540%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 Nano is a better choice, by a large margin. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 48000 (300%)

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 moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.