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Geforce GTX 690 vs Radeon HD 5670

Intro

The Geforce GTX 690 uses a 28 nm design. nVidia has set the core speed at 915 MHz. The GDDR5 memory is set to run at a speed of 1502 MHz on this particular model. It features 1536 SPUs along with 128 Texture Address Units and 32 ROPs.

Compare all of that to the Radeon HD 5670, which features GPU clock speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is made up of 400(80x5) Stream Processors, 20 Texture Address Units, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
Geforce GTX 690 300 Watts
Difference: 239 Watts (392%)

Memory Bandwidth

In theory, the Geforce GTX 690 should perform quite a bit faster than the Radeon HD 5670 overall. (explain)

Geforce GTX 690 384512 MB/sec
Radeon HD 5670 64000 MB/sec
Difference: 320512 (501%)

Texel Rate

The Geforce GTX 690 will be a lot (approximately 1411%) more effective at texture filtering than the Radeon HD 5670. (explain)

Geforce GTX 690 234240 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 218740 (1411%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 690 is a better choice, by far. (explain)

Geforce GTX 690 58560 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 52360 (845%)

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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Geforce GTX 690

Amazon.com

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Radeon HD 5670

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 Geforce GTX 690 Radeon HD 5670
Manufacturer nVidia AMD
Year April 2012 January 14, 2010
Code Name GK104 Redwood XT
Memory 2048 MB (x2) 1024 MB
Core Speed 915 MHz (x2) 775 MHz
Memory Speed 6008 MHz (x2) 4000 MHz
Power (Max TDP) 300 watts 61 watts
Bandwidth 384512 MB/sec 64000 MB/sec
Texel Rate 234240 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 58560 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 1536 (x2) 400(80x5)
Texture Mapping Units 128 (x2) 20
Render Output Units 32 (x2) 8
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 128-bit
Fab Process 28 nm 40 nm
Transistors 3540 million 627 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.2 OpenGL 3.2

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

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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Geforce GTX 690

Amazon.com

Check prices at:

Radeon HD 5670

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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