Radeon R7 370 2G vs Radeon R9 390 8G

Intro

Compare those specs to the Radeon R9 390 8G, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this specific card. It features 2560 SPUs along with 160 TAUs and 64 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 390 8G		12733 points
Radeon R7 370 2G		5582 points
	Difference: 7151 (128%)

Zcash Mining Hash Rate

Radeon R9 390 8G		326 Sol/s
Radeon R7 370 2G		210 Sol/s
	Difference: 116 (55%)

Ethereum Mining Hash Rate

Radeon R9 390 8G		28 Mh/s
Radeon R7 370 2G		15 Mh/s
	Difference: 13 (87%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 2G		110 Watts
Radeon R9 390 8G		275 Watts
	Difference: 165 Watts (150%)

Memory Bandwidth

In theory, the Radeon R9 390 8G should perform much faster than the Radeon R7 370 2G in general. (explain)

Radeon R9 390 8G		384000 MB/sec
Radeon R7 370 2G		179200 MB/sec
	Difference: 204800 (114%)

Texel Rate

The Radeon R9 390 8G is much (more or less 156%) better at texture filtering than the Radeon R7 370 2G. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
Radeon R7 370 2G		62400 Mtexels/sec
	Difference: 97600 (156%)

Pixel Rate

The Radeon R9 390 8G will be much (approximately 105%) more effective at anti-aliasing than the Radeon R7 370 2G, and will be capable of handling higher resolutions better. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
Radeon R7 370 2G		31200 Mpixels/sec
	Difference: 32800 (105%)

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 megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.