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GeForce 8600 GT 1GB GDDR3 vs GeForce 9500 GT 1GB GDDR3

Intro

The GeForce 8600 GT 1GB GDDR3 has a clock speed of 540 MHz and a GDDR3 memory frequency of 700 MHz. It also makes use of a 128-bit memory bus, and uses a 80 nm design. It is made up of 32 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare those specs to the GeForce 9500 GT 1GB GDDR3, which uses a 55 nm design. nVidia has set the core speed at 550 MHz. The GDDR3 memory is set to run at a frequency of 800 MHz on this model. 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 1GB GDDR3 47 Watts
GeForce 9500 GT 1GB GDDR3 50 Watts
Difference: 3 Watts (6%)

Memory Bandwidth

In theory, the GeForce 9500 GT 1GB GDDR3 should be 14% quicker than the GeForce 8600 GT 1GB GDDR3 in general, due to its higher bandwidth. (explain)

GeForce 9500 GT 1GB GDDR3 25600 MB/sec
GeForce 8600 GT 1GB GDDR3 22400 MB/sec
Difference: 3200 (14%)

Texel Rate

The GeForce 9500 GT 1GB GDDR3 will be just a bit (about 2%) more effective at texture filtering than the GeForce 8600 GT 1GB GDDR3. (explain)

GeForce 9500 GT 1GB GDDR3 8800 Mtexels/sec
GeForce 8600 GT 1GB GDDR3 8640 Mtexels/sec
Difference: 160 (2%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 9500 GT 1GB GDDR3 is superior to the GeForce 8600 GT 1GB GDDR3, but it probably won't make a huge difference. (explain)

GeForce 9500 GT 1GB GDDR3 4400 Mpixels/sec
GeForce 8600 GT 1GB GDDR3 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 1GB GDDR3

Amazon.com

Check prices at:

GeForce 9500 GT 1GB GDDR3

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 1GB GDDR3 GeForce 9500 GT 1GB GDDR3
Manufacturer nVidia nVidia
Year April 2007 July 2008
Code Name G84 G96b
Memory 1024 MB 1024 MB
Core Speed 540 MHz 550 MHz
Memory Speed 1400 MHz 1600 MHz
Power (Max TDP) 47 watts 50 watts
Bandwidth 22400 MB/sec 25600 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 GDDR3 GDDR3
Bus Width 128-bit 128-bit
Fab Process 80 nm 55 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: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. 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 output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 1GB GDDR3

Amazon.com

Check prices at:

GeForce 9500 GT 1GB GDDR3

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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