SpecificationAMD Ryzen 7 9850X3DIntel Core Ultra 5 250K Plus
PlatformZen 5 / AM5Intel Core Ultra Processors (Series 2), Arrow Lake
Cores / threads8 / 1618 total: 6 Performance-cores + 12 Efficient-cores / 18 threads
Maximum boost4.7GHz / up to 5.6GHzUp to 5.3GHz
Cache96MB30MB Intel Smart Cache; 30MB total L2 cache
Power rating120W125W / 159W
MemoryDDR5; two memory channelsDDR5 up to 7200 MT/s (Intel specification)

What the specifications show

The Ryzen 7 9850X3D has 8 cores and 16 threads with 96MB of L3 cache, a design aimed at latency-sensitive gaming. The Core Ultra 5 250K Plus has 18 cores and threads, split between 6 Performance-cores and 12 Efficient-cores.

TDP and Intel’s base and maximum turbo power are defined differently, so the power rows are not a like-for-like measurement of consumption.

What independent reviews add

Tom’s Hardware described the 9850X3D’s gains over the 9800X3D as marginal relative to its extra power use, and found the 250K Plus competitive in gaming and strong in threaded application tests. These were separate reviews with their own comparison sets, so they are not a direct head-to-head.

How to decide

Check socket and BIOS compatibility first, since the two chips need different platforms. Then weigh your mix of gaming and multi-threaded work, the cooler you will need to add for the 9850X3D, and the total platform cost in your market.

Evidence note

This comparison uses manufacturer specifications and attributed outside review findings. TWW has not tested either processor.

AMD Ryzen 7 9850X3D specifications and sources →

Intel Core Ultra 5 250K Plus specifications and sources →

CPU product profiles →