AMD Ryzen 7 9850X3D vs Intel Core Ultra 5 245K Comparison

The Verdict

The recorded data splits these two desktop processors into distinct roles. The AMD Ryzen 7 9850X3D wins 7 of the 15 head-to-head tests, while the Intel Core Ultra 5 245K wins 8. The Intel part takes the larger average benchmark score margin in several heavily weighted workloads, but the AMD part wins the single-core Cinebench tests and several integer-heavy Passmark tests. The Ryzen 7 9850X3D is the pick for users who prioritize single-threaded Cinebench performance, integer math, physics simulation, and data compression. The Core Ultra 5 245K is the pick for users who need higher multi-core Cinebench scores, floating-point throughput, encryption speed, and random string sorting. The AMD part sits at the 92nd percentile of all CPUs, while the Intel part sits at the 91st percentile. The AMD part's average benchmark score is 58386, and the Intel part's average is 54053, a difference of roughly 8% in favor of AMD across the recorded suite.

FAQ

Q: Which CPU has the higher single-core Cinebench R23 score?

A: The AMD Ryzen 7 9850X3D scores 2228, which is 4.5% ahead of the Intel Core Ultra 5 245K's 2132.

Q: Which CPU wins multi-core Cinebench R23?

A: The Intel Core Ultra 5 245K wins with a score of 25066, which is 9% ahead of the AMD Ryzen 7 9850X3D's 22807.

Q: What is the largest single benchmark margin in the head-to-head data?

A: The Intel Core Ultra 5 245K wins Passmark floating point math by 37.3%, scoring 130678 versus the AMD part's 81998.

Q: Which CPU has more cores and threads?

A: The Intel Core Ultra 5 245K has 14 cores and 14 threads, while the AMD Ryzen 7 9850X3D has 8 cores and 16 threads.

Q: Do both CPUs support ECC memory?

A: Yes, both the AMD Ryzen 7 9850X3D and the Intel Core Ultra 5 245K have ECC memory support enabled in the database.

Q: Which CPU has a higher boost clock?

A: The AMD Ryzen 7 9850X3D has a boost clock of 5.60 GHz, while the Intel Core Ultra 5 245K has a boost clock of 5.20 GHz.

Architecture Differences

The two processors use fundamentally different designs. The AMD Ryzen 7 9850X3D is built on the Zen 5 architecture with the Granite Ridge codename, part of the 9000 series. It uses an 8-core, 16-thread configuration. The Intel Core Ultra 5 245K uses the Arrow Lake architecture with the Arrow Lake-S codename, part of Core Ultra Series 2, and it uses a 14-core, 14-thread configuration. The Intel part has more physical cores but no hyperthreading, while the AMD part has fewer physical cores but twice the threads per core.

The process nodes differ. AMD uses a 4 nm process from TSMC, with 8,315 million transistors on a 70.6 mm² die. Intel uses a 3 nm process from TSMC, with 17,800 million transistors on a 243 mm² die. The Intel die is substantially larger and packs more than double the transistor count. Cache layouts also diverge sharply. AMD provides 80 KB of L1 per core, 1 MB of L2 per core, and 96 MB of shared L3 cache. Intel provides 192 KB of L1 per core, 3 MB of L2 per core, and 24 MB of shared L3 cache. The AMD part's 96 MB shared L3 is four times the Intel part's 24 MB shared L3, which explains its strong showing in data compression and integer workloads.

Memory bandwidth differs as well. AMD lists 89.6 GB/s, while Intel lists 102.4 GB/s. Both use dual-channel DDR5 memory. PCIe connectivity is not identical: AMD provides Gen 5 with 24 lanes (CPU only), while Intel provides Gen 5 with 20 lanes (CPU only). Integrated graphics also differ. AMD uses Radeon Graphics, while Intel uses Arc Xe-LPG Graphics 64EU. Both processors have unlocked multipliers, and both are listed as Active in production status.

Specification Differences

The base clocks differ. The AMD Ryzen 7 9850X3D runs a 4.70 GHz base clock, while the Intel Core Ultra 5 245K runs a 4.20 GHz base clock. Boost clocks follow the same order: AMD at 5.60 GHz, Intel at 5.20 GHz. TDP ratings are close but not equal: AMD is 120 W, Intel is 125 W. Sockets are different: AMD uses Socket AM5, Intel uses Socket 1851. Release dates are distinct, with the AMD part listed as 2026-01-28 and the Intel part as 2024-10-23. Launch MSRP values exist in the database: AMD at $499, Intel at $319.

Core and thread counts are the biggest structural difference. AMD has 8 cores and 16 threads. Intel has 14 cores and 14 threads. Cache sizes are listed per core and shared. AMD's L1 is 80 KB per core, L2 is 1 MB per core, and L3 is 96 MB shared. Intel's L1 is 192 KB per core, L2 is 3 MB per core, and L3 is 24 MB shared. The part numbers differ: AMD is 100-000001973, Intel is SRQCT.

Head-to-Head Benchmarks

The Cinebench results show a clear split. In Cinebench R15 multi-core, Intel wins with 3850 versus AMD's 3551, a 7.8% margin. In Cinebench R15 single-core, AMD wins with 343 versus Intel's 322, a 6.5% margin. In Cinebench R23 multi-core, Intel wins with 25066 versus AMD's 22807, a 9% margin. In Cinebench R23 single-core, AMD wins with 2228 versus Intel's 2132, a 4.5% margin. These results indicate that AMD holds a consistent single-core lead in Cinebench, while Intel holds a consistent multi-core lead.

The Passmark suite produces a wider range of outcomes. AMD wins data compression with 474501 versus Intel's 458817, a 3.4% margin. Intel wins data encryption with 33286 versus AMD's 22856, a 31.3% margin. AMD wins extended instructions with 39272 versus Intel's 37617, a 4.4% margin. AMD wins find prime numbers with 435 versus Intel's 414, a 5.1% margin. Intel wins floating point math with 130678 versus AMD's 81998, a 37.3% margin. AMD wins integer math with 123140 versus Intel's 98524, a 25% margin. Intel wins multithread with 43047 versus AMD's 41318, a 4% margin. AMD wins physics with 4171 versus Intel's 3081, a 35.4% margin. Intel wins random string sorting with 55098 versus AMD's 49764, a 9.7% margin. The single-thread Passmark scores are nearly identical: Intel wins with 4714 versus AMD's 4704, a 0.2% margin.

Where Each One Wins

The AMD Ryzen 7 9850X3D dominates in integer-heavy and physics-based workloads. Its 25% win in integer math and 35.4% win in physics are the largest AMD margins in the entire suite. It also wins data compression, extended instructions, and prime number finding. The single-core Cinebench wins are notable, with a 6.5% margin in R15 single-core and a 4.5% margin in R23 single-core. The 96 MB shared L3 cache likely drives the compression and integer advantages. Users running simulation software, compression tools, or single-threaded Cinebench-style rendering should expect the AMD part to lead.

The Intel Core Ultra 5 245K excels in multi-core throughput and floating-point math. Its 37.3% win in floating point math is the largest margin in the entire head-to-head set. It also wins data encryption by 31.3%, random string sorting by 9.7%, and multithread by 4%. The Cinebench multi-core wins are consistent, with a 7.8% margin in R15 multi-core and a 9% margin in R23 multi-core. The higher memory bandwidth of 102.4 GB/s and the 14-core configuration support these wins. Users who run encryption, floating-point simulation, or multi-threaded rendering should expect the Intel part to lead. The single-thread Passmark result is effectively a tie, with Intel ahead by only 0.2%, so the Intel part's advantage in that metric is negligible.