GeForce 8600 GT 512MB DDR2 vs GeForce RTX 4090

Intro

Compare those specs to the GeForce RTX 4090, which has a core clock speed of 2235 MHz and a GDDR6X memory frequency of 1325 MHz. It also makes use of a 384-bit memory bus, and uses a 4 nm design. It is made up of 16384 SPUs, 512 Texture Address Units, and 176 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2		47 Watts
GeForce RTX 4090		450 Watts
	Difference: 403 Watts (857%)

Memory Bandwidth

In theory, the GeForce RTX 4090 should be much faster than the GeForce 8600 GT 512MB DDR2 overall. (explain)

GeForce RTX 4090		1042432 MB/sec
GeForce 8600 GT 512MB DDR2		12800 MB/sec
	Difference: 1029632 (8044%)

Texel Rate

The GeForce RTX 4090 will be a lot (about 13144%) faster with regards to AF than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce RTX 4090		1144320 Mtexels/sec
GeForce 8600 GT 512MB DDR2		8640 Mtexels/sec
	Difference: 1135680 (13144%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce RTX 4090 is superior to the GeForce 8600 GT 512MB DDR2, and very much so. (explain)

GeForce RTX 4090		393360 Mpixels/sec
GeForce 8600 GT 512MB DDR2		4320 Mpixels/sec
	Difference: 389040 (9006%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 reach the maximum fill rate.