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GeForce 8600 GT 512MB DDR2 vs Radeon RX 7900 XT

Intro

The GeForce 8600 GT 512MB DDR2 features core speeds of 540 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 memory. It features 32 SPUs as well as 16 TAUs and 8 ROPs.

Compare all of that to the Radeon RX 7900 XT, which makes use of a 5 nm design. AMD has clocked the core speed at 1500 MHz. The GDDR6 RAM runs at a speed of 2500 MHz on this particular card. It features 5376 SPUs along with 336 TAUs and 192 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
Radeon RX 7900 XT 300 Watts
Difference: 253 Watts (538%)

Memory Bandwidth

The Radeon RX 7900 XT should theoretically be a lot faster than the GeForce 8600 GT 512MB DDR2 overall. (explain)

Radeon RX 7900 XT 819200 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 806400 (6300%)

Texel Rate

The Radeon RX 7900 XT should be quite a bit (about 5733%) more effective at AF than the GeForce 8600 GT 512MB DDR2. (explain)

Radeon RX 7900 XT 504000 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 495360 (5733%)

Pixel Rate

The Radeon RX 7900 XT is a lot (approximately 6567%) better at full screen anti-aliasing than the GeForce 8600 GT 512MB DDR2, and able to handle higher screen resolutions more effectively. (explain)

Radeon RX 7900 XT 288000 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 283680 (6567%)

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 RX 7900 XT

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 RX 7900 XT
Manufacturer nVidia AMD
Year April 2007 December 2022
Code Name G84 Navi 31 XT
Memory 512 MB 20480 MB
Core Speed 540 MHz 1500 MHz
Memory Speed 800 MHz 5000 GB/s
Power (Max TDP) 47 watts 300 watts
Bandwidth 12800 MB/sec 819200 MB/sec
Texel Rate 8640 Mtexels/sec 504000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 288000 Mpixels/sec
Unified Shaders 32 5376
Texture Mapping Units 16 336
Render Output Units 8 192
Bus Type DDR2 GDDR6
Bus Width 128-bit 320-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 max amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory 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 RX 7900 XT

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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