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GeForce 9500 GT DDR2 vs GeForce GTX 660

Intro

The GeForce 9500 GT DDR2 has a core clock speed of 550 MHz and a DDR2 memory frequency of 500 MHz. It also features a 128-bit memory bus, and makes use of a 65 nm design. It is comprised of 32 SPUs, 16 TAUs, and 8 ROPs.

Compare all that to the GeForce GTX 660, which makes use of a 28 nm design. nVidia has clocked the core frequency at 980 MHz. The GDDR5 RAM runs at a frequency of 1502 MHz on this particular card. It features 960 SPUs along with 80 Texture Address Units and 24 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2 50 Watts
GeForce GTX 660 140 Watts
Difference: 90 Watts (180%)

Memory Bandwidth

In theory, the GeForce GTX 660 is 801% faster than the GeForce 9500 GT DDR2 overall, because of its higher bandwidth. (explain)

GeForce GTX 660 144192 MB/sec
GeForce 9500 GT DDR2 16000 MB/sec
Difference: 128192 (801%)

Texel Rate

The GeForce GTX 660 is a lot (more or less 791%) better at texture filtering than the GeForce 9500 GT DDR2. (explain)

GeForce GTX 660 78400 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 69600 (791%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 660 is the winner, and very much so. (explain)

GeForce GTX 660 23520 Mpixels/sec
GeForce 9500 GT DDR2 4400 Mpixels/sec
Difference: 19120 (435%)

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 9500 GT DDR2

Amazon.com

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GeForce GTX 660

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 9500 GT DDR2 GeForce GTX 660
Manufacturer nVidia nVidia
Year July 2008 September 2012
Code Name G96a GK106
Memory 256 MB 2048 MB
Core Speed 550 MHz 980 MHz
Memory Speed 1000 MHz 6008 MHz
Power (Max TDP) 50 watts 140 watts
Bandwidth 16000 MB/sec 144192 MB/sec
Texel Rate 8800 Mtexels/sec 78400 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 23520 Mpixels/sec
Unified Shaders 32 960
Texture Mapping Units 16 80
Render Output Units 8 24
Bus Type DDR2 GDDR5
Bus Width 128-bit 192-bit
Fab Process 65 nm 28 nm
Transistors 314 million 2540 million
Bus PCIe x16 2.0, PCI PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 processed in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, 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 maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated 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 filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 9500 GT DDR2

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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