Why the Ryzen 9 7900X3D performs worse in games compared to the 7800X3D?
Why the Ryzen 9 7900X3D performs worse in games compared to the 7800X3D?
i am just starting out with amd, and from what i understand, the 7900x3d has two ccds meaning six with l3 cache while the other six lack l3 cache. in comparison, the 7800x3d has 8 plus 3d v cache. i believe the 7900x3d is better because it has 12 cores even though the l3 cache isn't present in both ccds. however, it uses a non-3d v cache with six cores. so in summary, it has 12 cores with 3d v cache versus 8 cores with 3d v cache.
It's more about the setup. 7800X3D is a monolithic design, while 7900X3D isn't. It features distinct I/O and two separate CPU chips, which results in higher memory latency because signals must pass an additional route—from I/O to the CPU chiplet.
7800X3D isn't made entirely of one piece; it contains an IOD and a CCD. In contrast, 7900x3d has a single IOD and two CCDs.