Radeon HD 7850 vs Radeon R9 380 2G

Intro

Compare those specifications to the Radeon R9 380 2G, which has GPU core speed of 970 MHz, and 2048 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also is made up of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

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

As far as performance goes, the Radeon R9 380 2G should theoretically be a little bit superior to the Radeon HD 7850 in general. (explain)

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

Texel Rate

The Radeon R9 380 2G should be much (approximately 97%) faster with regards to 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 is a small bit (more or less 13%) better at AA than the Radeon HD 7850, and also will be capable of handling higher screen resolutions better. (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: Bandwidth is the largest amount of information (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. 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 many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.