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Radeon HD 7850 vs Radeon R7 370 4G

Intro

The Radeon HD 7850 has a GPU core speed of 860 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1200 MHz through a 256-bit bus. It also is made up of 1024 Stream Processors, 64 Texture Address Units, and 32 ROPs.

Compare all that to the Radeon R7 370 4G, which uses a 28 nm design. AMD has clocked the core speed at 975 MHz. The GDDR5 RAM runs at a speed of 1400 MHz on this particular card. It features 1024 SPUs along with 64 TAUs and 32 Rasterization Operator Units.

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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 R7 370 4G		183 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 12 (7%)

Ethereum Mining Hash Rate

Radeon R7 370 4G		17 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 4 (31%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G		110 Watts
Radeon HD 7850		130 Watts
	Difference: 20 Watts (18%)

Memory Bandwidth

The Radeon R7 370 4G, in theory, should perform a little bit faster than the Radeon HD 7850 overall. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 25600 (17%)

Texel Rate

The Radeon R7 370 4G will be a little bit (about 13%) faster with regards to anisotropic filtering than the Radeon HD 7850. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 7360 (13%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R7 370 4G is superior to the Radeon HD 7850, but it probably won't make a huge difference. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 3680 (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

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Radeon HD 7850

Amazon.com

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Radeon R7 370 4G

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	Radeon HD 7850	Radeon R7 370 4G
Manufacturer	AMD	AMD
Year	March 2012	June 2015
Code Name	Pitcairn Pro	Trinidad
Memory	2048 MB	4096 MB
Core Speed	860 MHz	975 MHz
Memory Speed	4800 MHz	5600 MHz
Power (Max TDP)	130 watts	110 watts
Bandwidth	153600 MB/sec	179200 MB/sec
Texel Rate	55040 Mtexels/sec	62400 Mtexels/sec
Pixel Rate	27520 Mpixels/sec	31200 Mpixels/sec
Unified Shaders	1024	1024
Texture Mapping Units	64	64
Render Output Units	32	32
Bus Type	GDDR5	GDDR5
Bus Width	256-bit	256-bit
Fab Process	28 nm	28 nm
Transistors	2800 million	2080 million
Bus	PCIe 3.0 x16	PCIe 3.0 ×16
DirectX Version	DirectX 11.1	DirectX 12.0
OpenGL Version	OpenGL 4.2	OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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

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