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Radeon HD 7970 vs Radeon R9 290X

Intro

The Radeon HD 7970 has a GPU core clock speed of 925 MHz, and the 3072 MB of GDDR5 RAM is set to run at 1375 MHz through a 384-bit bus. It also is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Compare that to the Radeon R9 290X, which has core speeds of 800 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2816 SPUs as well as 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 290X 10609 points
Radeon HD 7970 8225 points
Difference: 2384 (29%)

Grand Theft Auto V | 1920x1080 | Very High

Radeon R9 290X 60 FPS
Radeon HD 7970 37 FPS
Difference: 23 (62%)

Ethereum Mining Hash Rate

Radeon R9 290X 29 Mh/s
Radeon HD 7970 21 Mh/s
Difference: 8 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7970 250 Watts
Radeon R9 290X 300 Watts
Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 290X should perform quite a bit faster than the Radeon HD 7970 overall. (explain)

Radeon R9 290X 320000 MB/sec
Radeon HD 7970 264000 MB/sec
Difference: 56000 (21%)

Texel Rate

The Radeon R9 290X will be a bit (approximately 19%) better at texture filtering than the Radeon HD 7970. (explain)

Radeon R9 290X 140800 Mtexels/sec
Radeon HD 7970 118400 Mtexels/sec
Difference: 22400 (19%)

Pixel Rate

The Radeon R9 290X is much (more or less 73%) faster with regards to anti-aliasing than the Radeon HD 7970, and also will be capable of handling higher screen resolutions better. (explain)

Radeon R9 290X 51200 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 21600 (73%)

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 7970

Amazon.com

Check prices at:

Radeon R9 290X

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 7970 Radeon R9 290X
Manufacturer AMD AMD
Year January 2012 October 2013
Code Name Tahiti XT Hawaii XT
Memory 3072 MB 4096 MB
Core Speed 925 MHz 800 MHz
Memory Speed 5500 MHz 5000 MHz
Power (Max TDP) 250 watts 300 watts
Bandwidth 264000 MB/sec 320000 MB/sec
Texel Rate 118400 Mtexels/sec 140800 Mtexels/sec
Pixel Rate 29600 Mpixels/sec 51200 Mpixels/sec
Unified Shaders 2048 2816
Texture Mapping Units 128 176
Render Output Units 32 64
Bus Type GDDR5 GDDR5
Bus Width 384-bit 512-bit
Fab Process 28 nm 28 nm
Transistors 4313 million 6200 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 11.2
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's 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 texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 7970

Amazon.com

Check prices at:

Radeon R9 290X

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.

Comments

One Response to “Radeon HD 7970 vs Radeon R9 290X”
Nathan says:

The R9 290x Is actually MORE efficient.

Cool.

Both are good cards.

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