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GeForce 8600 GTS vs GeForce GTX 850M

Intro

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

Compare all of that to the GeForce GTX 850M, which features a clock frequency of 876 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
GeForce 8600 GTS 75 Watts
Difference: 35 Watts (88%)

Memory Bandwidth

Both cards have the exact same memory bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The GeForce GTX 850M will be a lot (approximately 224%) faster with regards to anisotropic filtering than the GeForce 8600 GTS. (explain)

GeForce GTX 850M 35040 Mtexels/sec
GeForce 8600 GTS 10800 Mtexels/sec
Difference: 24240 (224%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 850M is the winner, by far. (explain)

GeForce GTX 850M 14016 Mpixels/sec
GeForce 8600 GTS 5400 Mpixels/sec
Difference: 8616 (160%)

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 GTX 850M

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 GTX 850M
Manufacturer nVidia nVidia
Year April 2007 March 12 2014
Code Name G84 GM107
Memory 512 MB 2048 MB
Core Speed 675 MHz 876 MHz
Memory Speed 2000 MHz 2000 MHz
Power (Max TDP) 75 watts 40 watts
Bandwidth 32000 MB/sec 32000 MB/sec
Texel Rate 10800 Mtexels/sec 35040 Mtexels/sec
Pixel Rate 5400 Mpixels/sec 14016 Mpixels/sec
Unified Shaders 32 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type GDDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 80 nm 28 nm
Transistors 289 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, 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 is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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

Display Prices

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GeForce 8600 GTS

Amazon.com

Check prices at:

GeForce GTX 850M

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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