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GeForce 8600 GTS vs GeForce GTS 250 1GB


Intro

The GeForce 8600 GTS comes with a GPU clock speed of 675 MHz, and the 512 MB of GDDR3 RAM is set to run at 1000 MHz through a 128-bit bus. It also is comprised of 32 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare those specs to the GeForce GTS 250 1GB, which features a clock speed of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also makes use of a 256-bit memory bus, and makes use of a 65/55 nm design. It is made up of 128 SPUs, 64 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GTS 75 Watts
GeForce GTS 250 1GB 145 Watts
Difference: 70 Watts (93%)

Memory Bandwidth

In theory, the GeForce GTS 250 1GB should perform a lot faster than the GeForce 8600 GTS overall. (explain)

GeForce GTS 250 1GB 70400 MB/sec
GeForce 8600 GTS 32000 MB/sec
Difference: 38400 (120%)

Texel Rate

The GeForce GTS 250 1GB will be quite a bit (about 337%) more effective at anisotropic filtering than the GeForce 8600 GTS. (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
GeForce 8600 GTS 10800 Mtexels/sec
Difference: 36432 (337%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTS 250 1GB is the winner, and very much so. (explain)

GeForce GTS 250 1GB 11808 Mpixels/sec
GeForce 8600 GTS 5400 Mpixels/sec
Difference: 6408 (119%)

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

GeForce GTS 250 1GB

Amazon.com

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 GTS 250 1GB
Manufacturer nVidia nVidia
Year April 2007 March 3, 2009
Code Name G84 G92a/b
Memory 512 MB 1024 MB
Core Speed 675 MHz 738 MHz
Memory Speed 2000 MHz 2200 MHz
Power (Max TDP) 75 watts 145 watts
Bandwidth 32000 MB/sec 70400 MB/sec
Texel Rate 10800 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 5400 Mpixels/sec 11808 Mpixels/sec
Unified Shaders 32 128
Texture Mapping Units 16 64
Render Output Units 8 16
Bus Type GDDR3 GDDR3
Bus Width 128-bit 256-bit
Fab Process 80 nm 65/55 nm
Transistors 289 million 754 million
Bus PCIe x16 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.1

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GTS

Amazon.com

GeForce GTS 250 1GB

Amazon.com

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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