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GeForce 8600 GS (OEM) vs Radeon HD 6450 (OEM)

Intro

The GeForce 8600 GS (OEM) features a clock speed of 540 MHz and a DDR2 memory speed of 400 MHz. It also uses a 128-bit memory bus, and uses a 80 nm design. It is made up of 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare those specifications to the Radeon HD 6450 (OEM), which makes use of a 40 nm design. AMD has set the core speed at 625 MHz. The GDDR3 RAM runs at a frequency of 800 MHz on this particular model. It features 160 SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 31 Watts
GeForce 8600 GS (OEM) 47 Watts
Difference: 16 Watts (52%)

Memory Bandwidth

Both cards have the exact same bandwidth, so theoretically they should have the same performance. (explain)

Texel Rate

The GeForce 8600 GS (OEM) is a lot (approximately 73%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

GeForce 8600 GS (OEM) 8640 Mtexels/sec
Radeon HD 6450 (OEM) 5000 Mtexels/sec
Difference: 3640 (73%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 8600 GS (OEM) is a better choice, by far. (explain)

GeForce 8600 GS (OEM) 4320 Mpixels/sec
Radeon HD 6450 (OEM) 2500 Mpixels/sec
Difference: 1820 (73%)

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 GS (OEM)

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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 GS (OEM) Radeon HD 6450 (OEM)
Manufacturer nVidia AMD
Year April 2007 February 2011
Code Name G84 Caicos
Memory 256 MB 512 MB
Core Speed 540 MHz 625 MHz
Memory Speed 800 MHz 1600 MHz
Power (Max TDP) 47 watts 31 watts
Bandwidth 12800 MB/sec 12800 MB/sec
Texel Rate 8640 Mtexels/sec 5000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 2500 Mpixels/sec
Unified Shaders 32 160
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type DDR2 GDDR3
Bus Width 128-bit 64-bit
Fab Process 80 nm 40 nm
Transistors 289 million 370 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the 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 texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better 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 video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GS (OEM)

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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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