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GeForce 8600 GT 256MB DDR2 vs GeForce GT 440 1.5GB

Intro

The GeForce 8600 GT 256MB DDR2 has 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.

Compare that to the GeForce GT 440 1.5GB, which has core clock speeds of 594 MHz on the GPU, and 900 MHz on the 1536 MB of GDDR3 memory. It features 144 SPUs along with 24 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 256MB DDR2 47 Watts
GeForce GT 440 1.5GB 56 Watts
Difference: 9 Watts (19%)

Memory Bandwidth

In theory, the GeForce GT 440 1.5GB should perform much faster than the GeForce 8600 GT 256MB DDR2 in general. (explain)

GeForce GT 440 1.5GB 43200 MB/sec
GeForce 8600 GT 256MB DDR2 12800 MB/sec
Difference: 30400 (238%)

Texel Rate

The GeForce GT 440 1.5GB will be a lot (more or less 65%) more effective at AF than the GeForce 8600 GT 256MB DDR2. (explain)

GeForce GT 440 1.5GB 14256 Mtexels/sec
GeForce 8600 GT 256MB DDR2 8640 Mtexels/sec
Difference: 5616 (65%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 440 1.5GB is a better choice, and very much so. (explain)

GeForce GT 440 1.5GB 14256 Mpixels/sec
GeForce 8600 GT 256MB 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 256MB DDR2

Amazon.com

Check prices at:

GeForce GT 440 1.5GB

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 256MB DDR2 GeForce GT 440 1.5GB
Manufacturer nVidia nVidia
Year April 2007 October 2010
Code Name G84 GF106
Memory 256 MB 1536 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 largest amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 256MB DDR2

Amazon.com

Check prices at:

GeForce GT 440 1.5GB

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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