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GeForce 8600 GT 1GB DDR2 vs GeForce GT 440 3GB

Intro

The GeForce 8600 GT 1GB DDR2 makes use of a 80 nm design. nVidia has clocked the core speed at 540 MHz. The DDR2 memory works at a frequency of 400 MHz on this specific model. It features 32 SPUs along with 16 Texture Address Units and 8 ROPs.

Compare those specifications to the GeForce GT 440 3GB, which uses a 40 nm design. nVidia has set the core frequency at 594 MHz. The GDDR3 RAM is set to run at a speed of 900 MHz on this model. It features 144 SPUs along with 24 TAUs and 24 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB DDR2 47 Watts
GeForce GT 440 3GB 56 Watts
Difference: 9 Watts (19%)

Memory Bandwidth

The GeForce GT 440 3GB should in theory perform a lot faster than the GeForce 8600 GT 1GB DDR2 in general. (explain)

GeForce GT 440 3GB 43200 MB/sec
GeForce 8600 GT 1GB DDR2 12800 MB/sec
Difference: 30400 (238%)

Texel Rate

The GeForce GT 440 3GB will be quite a bit (about 65%) more effective at AF than the GeForce 8600 GT 1GB DDR2. (explain)

GeForce GT 440 3GB 14256 Mtexels/sec
GeForce 8600 GT 1GB DDR2 8640 Mtexels/sec
Difference: 5616 (65%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 440 3GB is a better choice, and very much so. (explain)

GeForce GT 440 3GB 14256 Mpixels/sec
GeForce 8600 GT 1GB DDR2 4320 Mpixels/sec
Difference: 9936 (230%)

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 1GB DDR2

Amazon.com

Check prices at:

GeForce GT 440 3GB

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 GT 1GB DDR2 GeForce GT 440 3GB
Manufacturer nVidia nVidia
Year April 2007 October 2010
Code Name G84 GF106
Memory 1024 MB 3072 MB
Core Speed 540 MHz 594 MHz
Memory Speed 800 MHz 1800 MHz
Power (Max TDP) 47 watts 56 watts
Bandwidth 12800 MB/sec 43200 MB/sec
Texel Rate 8640 Mtexels/sec 14256 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 14256 Mpixels/sec
Unified Shaders 32 144
Texture Mapping Units 16 24
Render Output Units 8 24
Bus Type DDR2 GDDR3
Bus Width 128-bit 192-bit
Fab Process 80 nm 40 nm
Transistors 289 million 1170 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the 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 core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few 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

Hide Prices

GeForce 8600 GT 1GB DDR2

Amazon.com

Check prices at:

GeForce GT 440 3GB

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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