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Radeon HD 6790 vs Radeon R7 370 4G

Intro

The Radeon HD 6790 comes with a GPU core speed of 840 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1050 MHz through a 256-bit bus. It also is comprised of 800 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Compare all of that to the Radeon R7 370 4G, which makes use of a 28 nm design. AMD has set the core speed at 975 MHz. The GDDR5 RAM works at a speed of 1400 MHz on this model. It features 1024 SPUs along with 64 Texture Address Units and 32 Rasterization Operator Units.

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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

The Radeon R7 370 4G, in theory, should be much faster than the Radeon HD 6790 in general. (explain)

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

Texel Rate

The Radeon R7 370 4G should be quite a bit (about 86%) faster with regards to 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

If using a high resolution is important to you, then the Radeon R7 370 4G is the winner, by far. (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 largest amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that 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 Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum 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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