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GeForce 8300 GS (OEM) vs GeForce 8600 GT 512MB DDR2

Intro

The GeForce 8300 GS (OEM) features a clock speed of 450 MHz and a DDR2 memory frequency of 400 MHz. It also features a 64-bit memory bus, and makes use of a 80 nm design. It features 8 SPUs, 4 Texture Address Units, and 2 ROPs.

Compare those specifications to the GeForce 8600 GT 512MB DDR2, which comes with a GPU core clock speed of 540 MHz, and 512 MB of DDR2 RAM set to run at 400 MHz through a 128-bit bus. It also is comprised of 32 SPUs, 16 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM) 40 Watts
GeForce 8600 GT 512MB DDR2 47 Watts
Difference: 7 Watts (18%)

Memory Bandwidth

Theoretically, the GeForce 8600 GT 512MB DDR2 should perform much faster than the GeForce 8300 GS (OEM) in general. (explain)

GeForce 8600 GT 512MB DDR2 12800 MB/sec
GeForce 8300 GS (OEM) 6400 MB/sec
Difference: 6400 (100%)

Texel Rate

The GeForce 8600 GT 512MB DDR2 should be a lot (approximately 380%) better at texture filtering than the GeForce 8300 GS (OEM). (explain)

GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
GeForce 8300 GS (OEM) 1800 Mtexels/sec
Difference: 6840 (380%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 8600 GT 512MB DDR2 is superior to the GeForce 8300 GS (OEM), by a large margin. (explain)

GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
GeForce 8300 GS (OEM) 900 Mpixels/sec
Difference: 3420 (380%)

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 8300 GS (OEM)

Amazon.com

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GeForce 8600 GT 512MB 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 8300 GS (OEM) GeForce 8600 GT 512MB DDR2
Manufacturer nVidia nVidia
Year July 2007 April 2007
Code Name G86 G84
Memory 128 MB 512 MB
Core Speed 450 MHz 540 MHz
Memory Speed 800 MHz 800 MHz
Power (Max TDP) 40 watts 47 watts
Bandwidth 6400 MB/sec 12800 MB/sec
Texel Rate 1800 Mtexels/sec 8640 Mtexels/sec
Pixel Rate 900 Mpixels/sec 4320 Mpixels/sec
Unified Shaders 8 32
Texture Mapping Units 4 16
Render Output Units 2 8
Bus Type DDR2 DDR2
Bus Width 64-bit 128-bit
Fab Process 80 nm 80 nm
Transistors 210 million 289 million
Bus PCI Express x16 PCIe x16
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the 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 the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant 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 maximum fill rate.

Display Prices

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GeForce 8300 GS (OEM)

Amazon.com

Check prices at:

GeForce 8600 GT 512MB 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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