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GeForce 8600 GT 1GB GDDR3 vs Radeon HD 5570

Intro

The GeForce 8600 GT 1GB GDDR3 uses a 80 nm design. nVidia has clocked the core speed at 540 MHz. The GDDR3 memory runs at a speed of 700 MHz on this particular card. It features 32 SPUs as well as 16 TAUs and 8 Rasterization Operator Units.

Compare all of that to the Radeon HD 5570, which features GPU clock speed of 650 MHz, and 512 MB of DDR3 RAM running at 900 MHz through a 128-bit bus. It also is made up of 400(80x5) Stream Processors, 20 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570 43 Watts
GeForce 8600 GT 1GB GDDR3 47 Watts
Difference: 4 Watts (9%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5570 should be much faster than the GeForce 8600 GT 1GB GDDR3 overall. (explain)

Radeon HD 5570 28800 MB/sec
GeForce 8600 GT 1GB GDDR3 22400 MB/sec
Difference: 6400 (29%)

Texel Rate

The Radeon HD 5570 will be much (about 50%) better at texture filtering than the GeForce 8600 GT 1GB GDDR3. (explain)

Radeon HD 5570 13000 Mtexels/sec
GeForce 8600 GT 1GB GDDR3 8640 Mtexels/sec
Difference: 4360 (50%)

Pixel Rate

The Radeon HD 5570 will be just a bit (more or less 20%) better at AA than the GeForce 8600 GT 1GB GDDR3, and also capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 5570 5200 Mpixels/sec
GeForce 8600 GT 1GB GDDR3 4320 Mpixels/sec
Difference: 880 (20%)

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 1GB GDDR3

Amazon.com

Check prices at:

Radeon HD 5570

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 1GB GDDR3 Radeon HD 5570
Manufacturer nVidia AMD
Year April 2007 February 9, 2010
Code Name G84 Redwood PRO
Memory 1024 MB 512 MB
Core Speed 540 MHz 650 MHz
Memory Speed 1400 MHz 1800 MHz
Power (Max TDP) 47 watts 43 watts
Bandwidth 22400 MB/sec 28800 MB/sec
Texel Rate 8640 Mtexels/sec 13000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 32 400(80x5)
Texture Mapping Units 16 20
Render Output Units 8 8
Bus Type GDDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 80 nm 40 nm
Transistors 289 million 627 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 largest amount of data (counted in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once 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 number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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 get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 1GB GDDR3

Amazon.com

Check prices at:

Radeon HD 5570

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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