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GeForce 8600 GS (OEM) vs Radeon HD 4550 256MB

Intro

The GeForce 8600 GS (OEM) comes with a core clock frequency of 540 MHz and a DDR2 memory speed of 400 MHz. It also makes use of a 128-bit bus, and uses a 80 nm design. It features 32 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare those specs to the Radeon HD 4550 256MB, which has GPU core speed of 600 MHz, and 256 MB of DDR3 memory set to run at 800 MHz through a 64-bit bus. It also is made up of 80(16x5) Stream Processors, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 256MB 25 Watts
GeForce 8600 GS (OEM) 47 Watts
Difference: 22 Watts (88%)

Memory Bandwidth

Both cards have exactly the same bandwidth, so in theory they should have the same performance. (explain)

Texel Rate

The GeForce 8600 GS (OEM) is much (approximately 80%) faster with regards to AF than the Radeon HD 4550 256MB. (explain)

GeForce 8600 GS (OEM) 8640 Mtexels/sec
Radeon HD 4550 256MB 4800 Mtexels/sec
Difference: 3840 (80%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 8600 GS (OEM) is a better choice, and very much so. (explain)

GeForce 8600 GS (OEM) 4320 Mpixels/sec
Radeon HD 4550 256MB 2400 Mpixels/sec
Difference: 1920 (80%)

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 4550 256MB

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 4550 256MB
Manufacturer nVidia AMD
Year April 2007 Sep 30, 2008
Code Name G84 RV710
Memory 256 MB 256 MB
Core Speed 540 MHz 600 MHz
Memory Speed 800 MHz 1600 MHz
Power (Max TDP) 47 watts 25 watts
Bandwidth 12800 MB/sec 12800 MB/sec
Texel Rate 8640 Mtexels/sec 4800 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 2400 Mpixels/sec
Unified Shaders 32 80(16x5)
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type DDR2 DDR3
Bus Width 128-bit 64-bit
Fab Process 80 nm 55 nm
Transistors 289 million 242 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 are applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at 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 graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends 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 maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GS (OEM)

Amazon.com

Check prices at:

Radeon HD 4550 256MB

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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