AMD introduces Ryzen 7 9800X3D with V-Cache on the bottom and it's a fully unlocked CPU

AMD unveiled the Ryzen 7 9800X3D processor, a successor to the 7800X3D. It promises to deliver 8% higher frame rates than the old chip on average, though some games will see a performance uplift of up to 26%.

Like before, there are 96MB of L3 cache in total – 32MB on the CCD itself, plus 64MB on an additional die. Interestingly, this time the 3D V-Cache is placed below the CCD (which houses the CPU cores), rather than on top like on previous iterations. This helps to improve cooling, says AMD.

There are three pieces of silicon in the 9800X3D – the CCD (4nm TSMC), the 3D V-Cache and the I/O die (6nm TSMC). The L2 cache is 8MB, so AMD advertises the processor as having 104MB of cache.

This processor has 8 Zen 5 CPU cores with SMT, so that is 16 threads in total. With a TDP of 120W, it runs at 4.7GHz base clock speed and can boost a single core to 5.2GHz. The 7800X3D could only do 5.0GHz.

AMD listened to its fans and the 9800X3D is the first X3D processor to be fully unlocked, so if you have the cooling for it, that 5.2GHz ceiling is just a suggestion.

The AMD Ryzen 7 9800X3D is compatible with AM5 motherboards. It will be released globally on November 7 (Thursday) at a price of $480.

Check out the introduction video below – it shows benchmarks comparing the 9800X3D against the 7800X3D (screenshot above) as well as the Intel Core 9 Ultra 285K. According to AMD’s numbers, its processor is on average 20% faster in games (in terms of FPS), but some titles like Cyberpunk 2077 show a huge 59% advantage for the Ryzen processor.

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