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GeForce 8600 GT 512MB GDDR3 vs GeForce 9500 GT 1GB GDDR3

Intro

The GeForce 8600 GT 512MB GDDR3 makes use of a 80 nm design. nVidia has clocked the core speed at 540 MHz. The GDDR3 RAM works at a speed of 700 MHz on this particular card. It features 32 SPUs along with 16 Texture Address Units and 8 Rasterization Operator Units.

Compare that to the GeForce 9500 GT 1GB GDDR3, which has GPU clock speed of 550 MHz, and 1024 MB of GDDR3 memory set to run at 800 MHz through a 128-bit bus. It also is made up of 32 SPUs, 16 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB GDDR3 47 Watts
GeForce 9500 GT 1GB GDDR3 50 Watts
Difference: 3 Watts (6%)

Memory Bandwidth

Theoretically, the GeForce 9500 GT 1GB GDDR3 should be just a bit faster than the GeForce 8600 GT 512MB GDDR3 in general. (explain)

GeForce 9500 GT 1GB GDDR3 25600 MB/sec
GeForce 8600 GT 512MB GDDR3 22400 MB/sec
Difference: 3200 (14%)

Texel Rate

The GeForce 9500 GT 1GB GDDR3 will be a bit (approximately 2%) faster with regards to AF than the GeForce 8600 GT 512MB GDDR3. (explain)

GeForce 9500 GT 1GB GDDR3 8800 Mtexels/sec
GeForce 8600 GT 512MB GDDR3 8640 Mtexels/sec
Difference: 160 (2%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 9500 GT 1GB GDDR3 is the winner, though not by far. (explain)

GeForce 9500 GT 1GB GDDR3 4400 Mpixels/sec
GeForce 8600 GT 512MB 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 512MB 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 512MB GDDR3 GeForce 9500 GT 1GB GDDR3
Manufacturer nVidia nVidia
Year April 2007 July 2008
Code Name G84 G96b
Memory 512 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 largest amount of information (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 512MB 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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