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GeForce 8600 GT 512MB DDR2 vs GeForce GT 340 1GB

Intro

The GeForce 8600 GT 512MB DDR2 uses a 80 nm design. nVidia has clocked the core frequency at 540 MHz. The DDR2 RAM is set to run at a speed of 400 MHz on this particular card. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare all of that to the GeForce GT 340 1GB, which features core speeds of 550 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 memory. It features 96 SPUs as well as 32 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
GeForce GT 340 1GB 69 Watts
Difference: 22 Watts (47%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 340 1GB will be 325% quicker than the GeForce 8600 GT 512MB DDR2 overall, due to its higher bandwidth. (explain)

GeForce GT 340 1GB 54400 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 41600 (325%)

Texel Rate

The GeForce GT 340 1GB is much (approximately 104%) better at anisotropic filtering than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GT 340 1GB 17600 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 8960 (104%)

Pixel Rate

The GeForce GT 340 1GB will be a little bit (approximately 2%) more effective at FSAA than the GeForce 8600 GT 512MB DDR2, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GT 340 1GB 4400 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 80 (2%)

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 512MB DDR2

Amazon.com

Check prices at:

GeForce GT 340 1GB

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 512MB DDR2 GeForce GT 340 1GB
Manufacturer nVidia nVidia
Year April 2007 February 2010
Code Name G84 GT215
Memory 512 MB 1024 MB
Core Speed 540 MHz 550 MHz
Memory Speed 800 MHz 3400 MHz
Power (Max TDP) 47 watts 69 watts
Bandwidth 12800 MB/sec 54400 MB/sec
Texel Rate 8640 Mtexels/sec 17600 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 32 96
Texture Mapping Units 16 32
Render Output Units 8 8
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 80 nm 40 nm
Transistors 289 million 727 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.3

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total 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 applied in a second.

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

Display Prices

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GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce GT 340 1GB

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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