Radeon HD 7850 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 RAM. It features 4096 SPUs along with 256 Texture Address Units and 64 ROPs.

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 7850		5200 points
	Difference: 9718 (187%)

Zcash Mining Hash Rate

Radeon R9 Nano		402 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 231 (135%)

Ethereum Mining Hash Rate

Radeon R9 Nano		30 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 17 (131%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Radeon R9 Nano		175 Watts
	Difference: 45 Watts (35%)

Memory Bandwidth

The Radeon R9 Nano should theoretically perform much faster than the Radeon HD 7850 in general. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 358400 (233%)

Texel Rate

The Radeon R9 Nano will be quite a bit (more or less 365%) faster with regards to texture filtering than the Radeon HD 7850. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 200960 (365%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 Nano is the winner, by far. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 36480 (133%)

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 max amount of data (counted in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.