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Radeon HD 6990 vs Radeon R7 370 2G

Intro

The Radeon HD 6990 comes with core clock speeds of 830 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 96 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon R7 370 2G, which makes use of a 28 nm design. AMD has clocked the core speed at 975 MHz. The GDDR5 memory runs at a frequency of 1400 MHz on this specific card. It features 1024 SPUs along with 64 TAUs and 32 ROPs.

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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 HD 6990 5820 points
Radeon R7 370 2G 5582 points
Difference: 238 (4%)

Ethereum Mining Hash Rate

Radeon HD 6990 24 Mh/s
Radeon R7 370 2G 15 Mh/s
Difference: 9 (60%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 2G 110 Watts
Radeon HD 6990 375 Watts
Difference: 265 Watts (241%)

Memory Bandwidth

In theory, the Radeon HD 6990 should be quite a bit faster than the Radeon R7 370 2G in general. (explain)

Radeon HD 6990 320000 MB/sec
Radeon R7 370 2G 179200 MB/sec
Difference: 140800 (79%)

Texel Rate

The Radeon HD 6990 is much (about 155%) faster with regards to texture filtering than the Radeon R7 370 2G. (explain)

Radeon HD 6990 159360 Mtexels/sec
Radeon R7 370 2G 62400 Mtexels/sec
Difference: 96960 (155%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6990 is the winner, and very much so. (explain)

Radeon HD 6990 53120 Mpixels/sec
Radeon R7 370 2G 31200 Mpixels/sec
Difference: 21920 (70%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Radeon HD 6990

Amazon.com

Check prices at:

Radeon R7 370 2G

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 6990 Radeon R7 370 2G
Manufacturer AMD AMD
Year March 2011 June 2015
Code Name Antilles Trinidad
Memory 2048 MB (x2) 2048 MB
Core Speed 830 MHz (x2) 975 MHz
Memory Speed 5000 MHz (x2) 5600 MHz
Power (Max TDP) 375 watts 110 watts
Bandwidth 320000 MB/sec 179200 MB/sec
Texel Rate 159360 Mtexels/sec 62400 Mtexels/sec
Pixel Rate 53120 Mpixels/sec 31200 Mpixels/sec
Unified Shaders 1536 (x2) 1024
Texture Mapping Units 96 (x2) 64
Render Output Units 32 (x2) 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 40 nm 28 nm
Transistors 2640 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 (counted in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video 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 amount of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 ability to get to the max fill rate.

Display Prices

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Radeon HD 6990

Amazon.com

Check prices at:

Radeon R7 370 2G

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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