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GeForce 8600 GT 1GB DDR2 vs Radeon RX 7900 XTX

Intro

The GeForce 8600 GT 1GB DDR2 comes with a GPU core clock speed of 540 MHz, and the 1024 MB of DDR2 RAM is set to run at 400 MHz through a 128-bit bus. It also is made up of 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare all of that to the Radeon RX 7900 XTX, which has a clock speed of 1855 MHz and a GDDR6 memory speed of 2500 MHz. It also features a 384-bit bus, and makes use of a 5 nm design. It features 6144 SPUs, 384 TAUs, and 192 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB DDR2 47 Watts
Radeon RX 7900 XTX 355 Watts
Difference: 308 Watts (655%)

Memory Bandwidth

In theory, the Radeon RX 7900 XTX is 7580% quicker than the GeForce 8600 GT 1GB DDR2 in general, because of its greater data rate. (explain)

Radeon RX 7900 XTX 983040 MB/sec
GeForce 8600 GT 1GB DDR2 12800 MB/sec
Difference: 970240 (7580%)

Texel Rate

The Radeon RX 7900 XTX should be a lot (more or less 8144%) faster with regards to AF than the GeForce 8600 GT 1GB DDR2. (explain)

Radeon RX 7900 XTX 712320 Mtexels/sec
GeForce 8600 GT 1GB DDR2 8640 Mtexels/sec
Difference: 703680 (8144%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 7900 XTX is the winner, and very much so. (explain)

Radeon RX 7900 XTX 356160 Mpixels/sec
GeForce 8600 GT 1GB DDR2 4320 Mpixels/sec
Difference: 351840 (8144%)

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 DDR2

Amazon.com

Check prices at:

Radeon RX 7900 XTX

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 DDR2 Radeon RX 7900 XTX
Manufacturer nVidia AMD
Year April 2007 December 2022
Code Name G84 Navi 31 XTX
Memory 1024 MB 24576 MB
Core Speed 540 MHz 1855 MHz
Memory Speed 800 MHz 5000 GB/s
Power (Max TDP) 47 watts 355 watts
Bandwidth 12800 MB/sec 983040 MB/sec
Texel Rate 8640 Mtexels/sec 712320 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 356160 Mpixels/sec
Unified Shaders 32 6144
Texture Mapping Units 16 384
Render Output Units 8 192
Bus Type DDR2 GDDR6
Bus Width 128-bit 384-bit
Fab Process 80 nm 5 nm
Transistors 289 million 57700 million
Bus PCIe x16 PCIe 4.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 1GB DDR2

Amazon.com

Check prices at:

Radeon RX 7900 XTX

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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