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Radeon HD 6790 vs Radeon R7 370 4G

Intro

The Radeon HD 6790 features a core clock frequency of 840 MHz and a GDDR5 memory speed of 1050 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It is comprised of 800 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G 110 Watts
Radeon HD 6790 150 Watts
Difference: 40 Watts (36%)

Memory Bandwidth

As far as performance goes, the Radeon R7 370 4G should theoretically be quite a bit better than the Radeon HD 6790 overall. (explain)

Radeon R7 370 4G 179200 MB/sec
Radeon HD 6790 134400 MB/sec
Difference: 44800 (33%)

Texel Rate

The Radeon R7 370 4G will be a lot (more or less 86%) more effective at AF than the Radeon HD 6790. (explain)

Radeon R7 370 4G 62400 Mtexels/sec
Radeon HD 6790 33600 Mtexels/sec
Difference: 28800 (86%)

Pixel Rate

The Radeon R7 370 4G is a lot (approximately 132%) faster with regards to full screen anti-aliasing than the Radeon HD 6790, and should be able to handle higher resolutions without slowing down too much. (explain)

Radeon R7 370 4G 31200 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 17760 (132%)

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 6790

Amazon.com

Check prices at:

Radeon R7 370 4G

Amazon.com

Check prices at:

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 6790 Radeon R7 370 4G
Manufacturer AMD AMD
Year April 2011 June 2015
Code Name Barts LE Trinidad
Memory 1024 MB 4096 MB
Core Speed 840 MHz 975 MHz
Memory Speed 4200 MHz 5600 MHz
Power (Max TDP) 150 watts 110 watts
Bandwidth 134400 MB/sec 179200 MB/sec
Texel Rate 33600 Mtexels/sec 62400 Mtexels/sec
Pixel Rate 13440 Mpixels/sec 31200 Mpixels/sec
Unified Shaders 800 1024
Texture Mapping Units 40 64
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1700 million 2080 million
Bus PCIe 2.1 x16 PCIe 3.0 ×16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is worked out 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 handling 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 that the graphics chip 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill 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 max fill rate.

Display Prices

Hide Prices

Radeon HD 6790

Amazon.com

Check prices at:

Radeon R7 370 4G

Amazon.com

Check prices at:

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.

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