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Radeon HD 6990 vs Radeon R7 370 4G

Intro

The Radeon HD 6990 features a GPU clock speed of 830 MHz, and the 2048 MB of GDDR5 memory runs at 1250 MHz through a 256-bit bus. It also is comprised of 1536 SPUs, 96 TAUs, and 32 ROPs.

Compare those specifications to the Radeon R7 370 4G, which features clock speeds of 975 MHz on the GPU, and 1400 MHz on the 4096 MB of GDDR5 memory. It features 1024 SPUs along with 64 TAUs and 32 Rasterization Operator 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.

Ethereum Mining Hash Rate

Radeon HD 6990 24 Mh/s
Radeon R7 370 4G 17 Mh/s
Difference: 7 (41%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G 110 Watts
Radeon HD 6990 375 Watts
Difference: 265 Watts (241%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6990 should perform a lot faster than the Radeon R7 370 4G in general. (explain)

Radeon HD 6990 320000 MB/sec
Radeon R7 370 4G 179200 MB/sec
Difference: 140800 (79%)

Texel Rate

The Radeon HD 6990 will be a lot (about 155%) more effective at texture filtering than the Radeon R7 370 4G. (explain)

Radeon HD 6990 159360 Mtexels/sec
Radeon R7 370 4G 62400 Mtexels/sec
Difference: 96960 (155%)

Pixel Rate

The Radeon HD 6990 should be a lot (about 70%) better at full screen anti-aliasing than the Radeon R7 370 4G, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 6990 53120 Mpixels/sec
Radeon R7 370 4G 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 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 6990 Radeon R7 370 4G
Manufacturer AMD AMD
Year March 2011 June 2015
Code Name Antilles Trinidad
Memory 2048 MB (x2) 4096 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: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, 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 most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Radeon HD 6990

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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