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GeForce 8600 GT 512MB DDR2 vs GeForce 9500 GT DDR2

Intro

The GeForce 8600 GT 512MB DDR2 features a GPU core speed of 540 MHz, and the 512 MB of DDR2 memory runs at 400 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 TAUs, and 8 ROPs.

Compare all that to the GeForce 9500 GT DDR2, which uses a 65 nm design. nVidia has clocked the core speed at 550 MHz. The DDR2 memory is set to run at a speed of 500 MHz on this particular card. It features 32 SPUs along with 16 Texture Address Units and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
GeForce 9500 GT DDR2 50 Watts
Difference: 3 Watts (6%)

Memory Bandwidth

As far as performance goes, the GeForce 9500 GT DDR2 should in theory be quite a bit better than the GeForce 8600 GT 512MB DDR2 in general. (explain)

GeForce 9500 GT DDR2 16000 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 9500 GT DDR2 will be just a bit (about 2%) better at AF than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce 9500 GT DDR2 8800 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 160 (2%)

Pixel Rate

The GeForce 9500 GT DDR2 should be just a bit (about 2%) better at AA than the GeForce 8600 GT 512MB DDR2, and also will be capable of handling higher screen resolutions more effectively. (explain)

GeForce 9500 GT DDR2 4400 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 80 (2%)

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 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce 9500 GT DDR2

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 8600 GT 512MB DDR2 GeForce 9500 GT DDR2
Manufacturer nVidia nVidia
Year April 2007 July 2008
Code Name G84 G96a
Memory 512 MB 256 MB
Core Speed 540 MHz 550 MHz
Memory Speed 800 MHz 1000 MHz
Power (Max TDP) 47 watts 50 watts
Bandwidth 12800 MB/sec 16000 MB/sec
Texel Rate 8640 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 32 32
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type DDR2 DDR2
Bus Width 128-bit 128-bit
Fab Process 80 nm 65 nm
Transistors 289 million 314 million
Bus PCIe x16 PCIe x16 2.0, PCI
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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 - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce 9500 GT DDR2

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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