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GeForce 830M vs GeForce 8600 GT 256MB DDR2

Intro

The GeForce 830M comes with a clock speed of 1029 MHz and a DDR3 memory speed of 900 MHz. It also features a 64-bit bus, and uses a 28 nm design. It features 256 SPUs, 16 TAUs, and 8 ROPs.

Compare all of that to the GeForce 8600 GT 256MB DDR2, which features core clock speeds of 540 MHz on the GPU, and 400 MHz on the 256 MB of DDR2 memory. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M 25 Watts
GeForce 8600 GT 256MB DDR2 47 Watts
Difference: 22 Watts (88%)

Memory Bandwidth

The GeForce 830M, in theory, should perform just a bit faster than the GeForce 8600 GT 256MB DDR2 overall. (explain)

GeForce 830M 14400 MB/sec
GeForce 8600 GT 256MB DDR2 12800 MB/sec
Difference: 1600 (13%)

Texel Rate

The GeForce 830M is quite a bit (about 91%) faster with regards to texture filtering than the GeForce 8600 GT 256MB DDR2. (explain)

GeForce 830M 16464 Mtexels/sec
GeForce 8600 GT 256MB DDR2 8640 Mtexels/sec
Difference: 7824 (91%)

Pixel Rate

The GeForce 830M will be much (about 91%) better at full screen anti-aliasing than the GeForce 8600 GT 256MB DDR2, and also will be able to handle higher screen resolutions more effectively. (explain)

GeForce 830M 8232 Mpixels/sec
GeForce 8600 GT 256MB DDR2 4320 Mpixels/sec
Difference: 3912 (91%)

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 830M

Amazon.com

Check prices at:

GeForce 8600 GT 256MB DDR2

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 830M GeForce 8600 GT 256MB DDR2
Manufacturer nVidia nVidia
Year March 12 2014 April 2007
Code Name GM108 G84
Memory 2048 MB 256 MB
Core Speed 1029 MHz 540 MHz
Memory Speed 1800 MHz 800 MHz
Power (Max TDP) 25 watts 47 watts
Bandwidth 14400 MB/sec 12800 MB/sec
Texel Rate 16464 Mtexels/sec 8640 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 4320 Mpixels/sec
Unified Shaders 256 32
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 80 nm
Transistors (Unknown) million 289 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 12 DirectX 10
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, 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 most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 830M

Amazon.com

Check prices at:

GeForce 8600 GT 256MB DDR2

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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