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GeForce GTX 660 vs Radeon HD 3470 256MB

Intro

The GeForce GTX 660 comes with a GPU clock speed of 980 MHz, and the 2048 MB of GDDR5 memory is set to run at 1502 MHz through a 192-bit bus. It also features 960 SPUs, 80 TAUs, and 24 Raster Operation Units.

Compare all of that to the Radeon HD 3470 256MB, which features a clock speed of 800 MHz and a DDR2 memory speed of 950 MHz. It also features a 128-bit memory bus, and makes use of a 55 nm design. It features 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 660 should perform quite a bit faster than the Radeon HD 3470 256MB overall. (explain)

GeForce GTX 660 144192 MB/sec
Radeon HD 3470 256MB 30400 MB/sec
Difference: 113792 (374%)

Texel Rate

The GeForce GTX 660 is quite a bit (more or less 2350%) better at anisotropic filtering than the Radeon HD 3470 256MB. (explain)

GeForce GTX 660 78400 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 75200 (2350%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 660 is a better choice, by far. (explain)

GeForce GTX 660 23520 Mpixels/sec
Radeon HD 3470 256MB 3200 Mpixels/sec
Difference: 20320 (635%)

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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GeForce GTX 660

Amazon.com

Check prices at:

Radeon HD 3470 256MB

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 GeForce GTX 660 Radeon HD 3470 256MB
Manufacturer nVidia AMD
Year September 2012 2008
Code Name GK106 RV620 PRO
Memory 2048 MB 256 MB
Core Speed 980 MHz 800 MHz
Memory Speed 6008 MHz 1900 MHz
Power (Max TDP) 140 watts (Unknown) watts
Bandwidth 144192 MB/sec 30400 MB/sec
Texel Rate 78400 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 23520 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 960 40(8x5)
Texture Mapping Units 80 4
Render Output Units 24 4
Bus Type GDDR5 DDR2
Bus Width 192-bit 128-bit
Fab Process 28 nm 55 nm
Transistors 2540 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 11.0 DirectX 10.1
OpenGL Version OpenGL 4.3 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR 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 of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics 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 amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 660

Amazon.com

Check prices at:

Radeon HD 3470 256MB

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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