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Radeon HD 6970 vs Radeon R9 295X2

Intro

The Radeon HD 6970 has a core clock speed of 880 MHz and a GDDR5 memory frequency of 1375 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is made up of 1536 SPUs, 96 TAUs, and 32 Raster Operation Units.

Compare those specs to the Radeon R9 295X2, which features core clock speeds of 1018 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 RAM. It features 2816 SPUs along with 176 TAUs and 64 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 R9 295X2 21205 points
Radeon HD 6970 3470 points
Difference: 17735 (511%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6970 250 Watts
Radeon R9 295X2 500 Watts
Difference: 250 Watts (100%)

Memory Bandwidth

In theory, the Radeon R9 295X2 will be 264% faster than the Radeon HD 6970 overall, because of its greater bandwidth. (explain)

Radeon R9 295X2 640000 MB/sec
Radeon HD 6970 176000 MB/sec
Difference: 464000 (264%)

Texel Rate

The Radeon R9 295X2 will be quite a bit (approximately 324%) faster with regards to AF than the Radeon HD 6970. (explain)

Radeon R9 295X2 358336 Mtexels/sec
Radeon HD 6970 84480 Mtexels/sec
Difference: 273856 (324%)

Pixel Rate

The Radeon R9 295X2 will be quite a bit (about 363%) better at FSAA than the Radeon HD 6970, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 295X2 130304 Mpixels/sec
Radeon HD 6970 28160 Mpixels/sec
Difference: 102144 (363%)

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 6970

Amazon.com

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Radeon R9 295X2

Amazon.com

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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 6970 Radeon R9 295X2
Manufacturer AMD AMD
Year December 2010 April 2014
Code Name Cayman XT Vesuvius
Memory 2048 MB 4096 MB (x2)
Core Speed 880 MHz 1018 MHz (x2)
Memory Speed 5500 MHz 5000 MHz (x2)
Power (Max TDP) 250 watts 500 watts
Bandwidth 176000 MB/sec 640000 MB/sec
Texel Rate 84480 Mtexels/sec 358336 Mtexels/sec
Pixel Rate 28160 Mpixels/sec 130304 Mpixels/sec
Unified Shaders 1536 2816 (x2)
Texture Mapping Units 96 176 (x2)
Render Output Units 32 64 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 512-bit (x2)
Fab Process 40 nm 28 nm
Transistors 2640 million 6200 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon HD 6970

Amazon.com

Check prices at:

Radeon R9 295X2

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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