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GeForce 8600 GTS vs GeForce GTX 850M

Intro

The GeForce 8600 GTS features clock speeds of 675 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR3 memory. It features 32 SPUs along with 16 Texture Address Units and 8 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 850M, which comes with a core clock speed of 876 MHz and a DDR3 memory speed of 1000 MHz. It also features a 128-bit bus, and makes use of 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 theoretically they should perform exactly the same. (explain)

Texel Rate

The GeForce GTX 850M should be a lot (approximately 224%) better at 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

The GeForce GTX 850M will be a lot (approximately 160%) faster with regards to anti-aliasing than the GeForce 8600 GTS, and also should be capable of handling higher resolutions without losing too much performance. (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

Display 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 largest amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock 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 in one second.

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

Display Prices

Hide Prices

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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