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Radeon HD 7850 vs Radeon R7 370 4G

Intro

The Radeon HD 7850 comes with clock speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs along with 64 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon R7 370 4G, which has a core clock frequency of 975 MHz and a GDDR5 memory speed of 1400 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation 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

Theoretically speaking, the Radeon R7 370 4G should be a bit faster than the Radeon HD 7850 in general. (explain)

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

Texel Rate

The Radeon R7 370 4G is a bit (approximately 13%) more effective at AF 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 lots of anti-aliasing is important to you, then the Radeon R7 370 4G is the winner, though not by far. (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

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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 max amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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

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