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GeForce 8600 GT 256MB DDR2 vs GeForce 940M

Intro

The GeForce 8600 GT 256MB DDR2 comes with a GPU core speed of 540 MHz, and the 256 MB of DDR2 memory is set to run at 400 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 TAUs, and 8 ROPs.

Compare all of that to the GeForce 940M, which comes with core speeds of 1072 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs along with 24 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce 940M should theoretically be a lot better than the GeForce 8600 GT 256MB DDR2 in general. (explain)

GeForce 940M 16000 MB/sec
GeForce 8600 GT 256MB DDR2 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 940M should be quite a bit (more or less 198%) faster with regards to anisotropic filtering than the GeForce 8600 GT 256MB DDR2. (explain)

GeForce 940M 25728 Mtexels/sec
GeForce 8600 GT 256MB DDR2 8640 Mtexels/sec
Difference: 17088 (198%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 940M is a better choice, and very much so. (explain)

GeForce 940M 8576 Mpixels/sec
GeForce 8600 GT 256MB DDR2 4320 Mpixels/sec
Difference: 4256 (99%)

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 256MB DDR2

Amazon.com

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GeForce 940M

Amazon.com

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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 256MB DDR2 GeForce 940M
Manufacturer nVidia nVidia
Year April 2007 March 12 2015
Code Name G84 GM108
Memory 256 MB 2048 MB
Core Speed 540 MHz 1072 MHz
Memory Speed 800 MHz 2000 MHz
Power (Max TDP) 47 watts (Unknown) watts
Bandwidth 12800 MB/sec 16000 MB/sec
Texel Rate 8640 Mtexels/sec 25728 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 8576 Mpixels/sec
Unified Shaders 32 384
Texture Mapping Units 16 24
Render Output Units 8 8
Bus Type DDR2 DDR3
Bus Width 128-bit 64-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: Bandwidth is the largest amount of data (counted in megabytes 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 speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce 8600 GT 256MB DDR2

Amazon.com

Check prices at:

GeForce 940M

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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