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GeForce GTX 470 vs GeForce GTX 660

Intro

The GeForce GTX 470 uses a 40 nm design. nVidia has set the core speed at 607 MHz. The GDDR5 RAM runs at a frequency of 837 MHz on this particular model. It features 448 SPUs along with 56 Texture Address Units and 40 ROPs.

Compare that to the GeForce GTX 660, which has core speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 960 SPUs as well as 80 TAUs and 24 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

GeForce GTX 660 5063 points
GeForce GTX 470 2937 points
Difference: 2126 (72%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 140 Watts
GeForce GTX 470 215 Watts
Difference: 75 Watts (54%)

Memory Bandwidth

Performance-wise, the GeForce GTX 660 should in theory be a bit better than the GeForce GTX 470 in general. (explain)

GeForce GTX 660 144192 MB/sec
GeForce GTX 470 133920 MB/sec
Difference: 10272 (8%)

Texel Rate

The GeForce GTX 660 should be much (about 131%) faster with regards to texture filtering than the GeForce GTX 470. (explain)

GeForce GTX 660 78400 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 44408 (131%)

Pixel Rate

The GeForce GTX 470 will be a small bit (about 3%) better at full screen anti-aliasing than the GeForce GTX 660, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 470 24280 Mpixels/sec
GeForce GTX 660 23520 Mpixels/sec
Difference: 760 (3%)

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 470

Amazon.com

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GeForce GTX 660

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 470 GeForce GTX 660
Manufacturer nVidia nVidia
Year March 2010 September 2012
Code Name GF100 GK106
Memory 1280 MB 2048 MB
Core Speed 607 MHz 980 MHz
Memory Speed 3348 MHz 6008 MHz
Power (Max TDP) 215 watts 140 watts
Bandwidth 133920 MB/sec 144192 MB/sec
Texel Rate 33992 Mtexels/sec 78400 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 23520 Mpixels/sec
Unified Shaders 448 960
Texture Mapping Units 56 80
Render Output Units 40 24
Bus Type GDDR5 GDDR5
Bus Width 320-bit 192-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 2540 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 amount of texture map elements (texels) that are processed per second. This figure 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 470

Amazon.com

Check prices at:

GeForce GTX 660

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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