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GeForce 8600 GTS vs GeForce 9500 GT 1GB GDDR3

Intro

The GeForce 8600 GTS comes with core speeds of 675 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR3 memory. It features 32 SPUs along with 16 TAUs and 8 ROPs.

Compare all that to the GeForce 9500 GT 1GB GDDR3, which makes use of a 55 nm design. nVidia has clocked the core frequency at 550 MHz. The GDDR3 memory works at a speed of 800 MHz on this specific model. It features 32 SPUs as well as 16 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 1GB GDDR3 50 Watts
GeForce 8600 GTS 75 Watts
Difference: 25 Watts (50%)

Memory Bandwidth

Performance-wise, the GeForce 8600 GTS should theoretically be much better than the GeForce 9500 GT 1GB GDDR3 overall. (explain)

GeForce 8600 GTS 32000 MB/sec
GeForce 9500 GT 1GB GDDR3 25600 MB/sec
Difference: 6400 (25%)

Texel Rate

The GeForce 8600 GTS should be much (about 23%) better at anisotropic filtering than the GeForce 9500 GT 1GB GDDR3. (explain)

GeForce 8600 GTS 10800 Mtexels/sec
GeForce 9500 GT 1GB GDDR3 8800 Mtexels/sec
Difference: 2000 (23%)

Pixel Rate

The GeForce 8600 GTS is quite a bit (approximately 23%) more effective at anti-aliasing than the GeForce 9500 GT 1GB GDDR3, and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce 8600 GTS 5400 Mpixels/sec
GeForce 9500 GT 1GB GDDR3 4400 Mpixels/sec
Difference: 1000 (23%)

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 GTS

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 GTS GeForce 9500 GT 1GB GDDR3
Manufacturer nVidia nVidia
Year April 2007 July 2008
Code Name G84 G96b
Memory 512 MB 1024 MB
Core Speed 675 MHz 550 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) 75 watts 50 watts
Bandwidth 32000 MB/sec 25600 MB/sec
Texel Rate 10800 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 5400 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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total 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 a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could 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 Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GTS

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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