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GeForce 8600 GT 512MB DDR2 vs Radeon HD 5770

Intro

The GeForce 8600 GT 512MB DDR2 comes with clock speeds of 540 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 RAM. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare all that to the Radeon HD 5770, which has GPU core speed of 850 MHz, and 1024 MB of GDDR5 memory running at 1200 MHz through a 128-bit bus. It also features 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
Radeon HD 5770 108 Watts
Difference: 61 Watts (130%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5770 will be 500% faster than the GeForce 8600 GT 512MB DDR2 in general, due to its greater data rate. (explain)

Radeon HD 5770 76800 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 64000 (500%)

Texel Rate

The Radeon HD 5770 should be quite a bit (about 294%) faster with regards to AF than the GeForce 8600 GT 512MB DDR2. (explain)

Radeon HD 5770 34000 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 25360 (294%)

Pixel Rate

The Radeon HD 5770 should be a lot (more or less 215%) more effective at full screen anti-aliasing than the GeForce 8600 GT 512MB DDR2, and should be capable of handling higher resolutions more effectively. (explain)

Radeon HD 5770 13600 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 9280 (215%)

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:

Radeon HD 5770

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 Radeon HD 5770
Manufacturer nVidia AMD
Year April 2007 October 13, 2009
Code Name G84 Juniper XT
Memory 512 MB 1024 MB
Core Speed 540 MHz 850 MHz
Memory Speed 800 MHz 4800 MHz
Power (Max TDP) 47 watts 108 watts
Bandwidth 12800 MB/sec 76800 MB/sec
Texel Rate 8640 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 13600 Mpixels/sec
Unified Shaders 32 800(160x5)
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 80 nm 40 nm
Transistors 289 million 1040 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the 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 number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

Radeon HD 5770

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.

Comments

One Response to “GeForce 8600 GT 512MB DDR2 vs Radeon HD 5770”
E6550 voll ausreizen !!! / maximal vertretbarer fsb says:

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