Radeon HD 7850 vs Radeon R9 380 2G

Intro

Compare that to the Radeon R9 380 2G, which has clock speeds of 970 MHz on the GPU, and 1425 MHz on the 2048 MB of GDDR5 memory. It features 1792 SPUs as well as 112 Texture Address Units and 32 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.

3DMark Fire Strike Graphics Score

Radeon R9 380 2G		8850 points
Radeon HD 7850		5200 points
	Difference: 3650 (70%)

Ethereum Mining Hash Rate

Radeon R9 380 2G		19 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 6 (46%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Radeon R9 380 2G		190 Watts
	Difference: 60 Watts (46%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380 2G will be 19% faster than the Radeon HD 7850 overall, due to its higher data rate. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 28800 (19%)

Texel Rate

The Radeon R9 380 2G is much (about 97%) more effective at AF than the Radeon HD 7850. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 53600 (97%)

Pixel Rate

The Radeon R9 380 2G will be a little bit (about 13%) more effective at FSAA than the Radeon HD 7850, and also will be capable of handling higher resolutions more effectively. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 3520 (13%)

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 (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card 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 most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.