Radeon HD 7950 3GB vs Radeon R9 Nano

Intro

Compare those specs to the Radeon R9 Nano, which comes with core 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 TAUs and 64 ROPs.

Display Graphs

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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.

Zcash Mining Hash Rate

Radeon R9 Nano		402 Sol/s
Radeon HD 7950 3GB		229 Sol/s
	Difference: 173 (76%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano		175 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 25 Watts (14%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 Nano should be 113% quicker than the Radeon HD 7950 3GB in general, due to its greater data rate. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon HD 7950 3GB		240000 MB/sec
	Difference: 272000 (113%)

Texel Rate

The Radeon R9 Nano should be a lot (about 186%) better at texture filtering than the Radeon HD 7950 3GB. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 166400 (186%)

Pixel Rate

The Radeon R9 Nano should be a lot (about 150%) better at anti-aliasing than the Radeon HD 7950 3GB, and also will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 38400 (150%)

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 largest amount of information (in units of MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at 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 the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.