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GeForce 8600 GT 1GB GDDR3 vs Radeon RX 7900 XT

Intro

The GeForce 8600 GT 1GB GDDR3 features a GPU core clock speed of 540 MHz, and the 1024 MB of GDDR3 RAM runs at 700 MHz through a 128-bit bus. It also is comprised of 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare all of that to the Radeon RX 7900 XT, which comes with core speeds of 1500 MHz on the GPU, and 2500 MHz on the 20480 MB of GDDR6 memory. It features 5376 SPUs as well as 336 TAUs and 192 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB GDDR3 47 Watts
Radeon RX 7900 XT 300 Watts
Difference: 253 Watts (538%)

Memory Bandwidth

The Radeon RX 7900 XT should in theory be quite a bit faster than the GeForce 8600 GT 1GB GDDR3 in general. (explain)

Radeon RX 7900 XT 819200 MB/sec
GeForce 8600 GT 1GB GDDR3 22400 MB/sec
Difference: 796800 (3557%)

Texel Rate

The Radeon RX 7900 XT is much (more or less 5733%) better at AF than the GeForce 8600 GT 1GB GDDR3. (explain)

Radeon RX 7900 XT 504000 Mtexels/sec
GeForce 8600 GT 1GB GDDR3 8640 Mtexels/sec
Difference: 495360 (5733%)

Pixel Rate

The Radeon RX 7900 XT will be quite a bit (more or less 6567%) more effective at AA than the GeForce 8600 GT 1GB GDDR3, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 7900 XT 288000 Mpixels/sec
GeForce 8600 GT 1GB GDDR3 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 1GB GDDR3

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 1GB GDDR3 Radeon RX 7900 XT
Manufacturer nVidia AMD
Year April 2007 December 2022
Code Name G84 Navi 31 XT
Memory 1024 MB 20480 MB
Core Speed 540 MHz 1500 MHz
Memory Speed 1400 MHz 5000 GB/s
Power (Max TDP) 47 watts 300 watts
Bandwidth 22400 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 GDDR3 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: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core 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 applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 8600 GT 1GB GDDR3

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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