AMD Ryzen 7 9850X3D vs Intel Core Ultra 5 235HX Comparison

Head-to-Head Benchmarks

The recorded data splits this comparison into two distinct profiles: sustained multi-threaded throughput versus bursty single-core and floating-point performance. The AMD Ryzen 7 9850X3D wins 9 of the 15 shared benchmarks, while the Intel Core Ultra 5 235HX takes 6, but the magnitude of those wins matters more than the raw count.

The largest Intel victory is in Cinebench R23 single-core, where the Core Ultra 5 235HX scores 4903 against the AMD's 2228, a 54.6% advantage. That is the single biggest delta in the entire head-to-head set. The same pattern appears in Cinebench R15 single-core, with Intel ahead by 30.6% (494 versus 343). These are not marginal differences; the Arrow Lake-HX part delivers roughly double the single-thread rendering score in the newer test. Floating-point math also favors Intel heavily, with a 129819 score versus 81998, a 36.8% lead. Data encryption shows Intel ahead by 30.1% (32697 versus 22856), and random string sorting goes to Intel by 2.3% (50929 versus 49764).

The AMD part counters with its own decisive wins. The most striking is PassMark physics, where the 9850X3D scores 4171 versus 2550, a 63.6% advantage. Integer math goes to AMD by 26.7% (123140 versus 97177). Prime number finding favors AMD by 20.5% (435 versus 361). Extended instructions go to AMD by 12.8% (39272 versus 34808), and data compression by 11.3% (474501 versus 426417). The multi-thread PassMark result is close, 41318 versus 40849, a 1.1% AMD edge, and single-thread PassMark is nearly identical at 4704 versus 4683, a 0.4% AMD lead.

Cinebench R23 multicore presents a contradiction within Intel's own profile. The Core Ultra 5 235HX wins by 34.3% (34731 versus 22807), yet Cinebench R15 multicore goes the other way: AMD wins 3551 versus 3500, a 1.5% margin. That divergence suggests the two processors scale very differently across workload generations. The Intel chip also holds a 1.5% edge in Cinebench R15 multicore? No, the data shows AMD winning that test by 1.5%. The overall average benchmark scores reflect this split: the AMD part averages 58386 across its benchmark suite, while the Intel part averages 52073.

Looking at the nearest rivals in the database, the AMD Ryzen 7 9850X3D sits at the 92nd percentile of all CPUs, with its closest competitor being the Intel Xeon Platinum 8260M at 58323 average score, a 0.1% difference. The Intel Core Ultra 5 235HX sits at the 91st percentile, with its nearest rival being the AMD EPYC 8124P at 52121 average score, a 0.1% difference. Both products are similarly positioned in the overall hierarchy, despite their very different benchmark signatures.

Architecture Differences

The two processors come from opposite design philosophies. The AMD Ryzen 7 9850X3D uses the Zen 5 architecture on the Granite Ridge codename, built on TSMC's 4 nm process. The Intel Core Ultra 5 235HX uses the Arrow Lake architecture on the Arrow Lake-HX codename, built on TSMC's 3 nm process. Both are fabricated by TSMC, but the Intel part uses a smaller node.

The transistor counts differ substantially. The AMD chip packs 8,315 million transistors on a 70.6 mm² die, while the Intel chip contains 17,800 million transistors on a 243 mm² die. That is more than double the transistor count and more than triple the die area for Intel. The core configurations also diverge: AMD uses 8 cores and 16 threads, while Intel uses 14 cores and 14 threads. The Intel part has more physical cores but no hyperthreading, so its thread count equals its core count. AMD's 8 cores with simultaneous multithreading produce 16 threads.

Cache hierarchies are built on different principles. AMD provides 80 KB of L1 cache 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 L3 is four times larger than Intel's 24 MB, which aligns with the 3D V-Cache design philosophy of the 9850X3D. Intel compensates with larger per-core L1 and L2 allocations.

Clock speeds favor AMD on paper. The Ryzen 7 9850X3D has a 4.70 GHz base clock and a 5.60 GHz boost clock. The Core Ultra 5 235HX runs at 2.90 GHz base and 5.10 GHz boost. Thermal design power also differs dramatically: the AMD desktop part is rated at 120 W TDP, while the Intel mobile part is rated at 55 W TDP. This reflects their different market segments: the AMD chip is a desktop processor, while the Intel chip is a mobile processor.

Memory capabilities show both similarities and differences. Both support DDR5 and dual-channel memory buses. AMD's memory bandwidth is rated at 89.6 GB/s, while Intel's is rated at 102.4 GB/s. AMD supports ECC memory; Intel does not. PCIe lanes also differ: AMD offers Gen 5 with 24 lanes (CPU only), while Intel offers Gen 5 with 20 lanes (CPU only). Integrated graphics differ as well: AMD uses Radeon Graphics, while Intel uses Arc Xe-LPG Graphics 48EU. The AMD part has an unlocked multiplier, as does the Intel part. The Intel chip has a 3 nm process advantage over AMD's 4 nm, but the AMD part has a significantly larger L3 cache and higher clock speeds.

FAQ

Q: Which processor has the higher boost clock?

A: The AMD Ryzen 7 9850X3D boosts to 5.60 GHz, while the Intel Core Ultra 5 235HX boosts to 5.10 GHz.

Q: How much larger is the AMD L3 cache compared to Intel?

A: The AMD Ryzen 7 9850X3D has 96 MB of shared L3 cache, while the Intel Core Ultra 5 235HX has 24 MB of shared L3 cache, making AMD's L3 four times larger.

Q: Which chip supports ECC memory?

A: The AMD Ryzen 7 9850X3D supports ECC memory. The Intel Core Ultra 5 235HX does not support ECC memory.

Q: What is the average benchmark score difference between the two?

A: The AMD Ryzen 7 9850X3D has an average benchmark score of 58386, while the Intel Core Ultra 5 235HX has an average score of 52073, a difference of 6313 points in favor of AMD.

Q: Which processor has more cores?

A: The Intel Core Ultra 5 235HX has 14 cores, while the AMD Ryzen 7 9850X3D has 8 cores. However, the AMD part has 16 threads versus Intel's 14 threads.

Q: Are both processors unlocked for overclocking?

A: Yes, both the AMD Ryzen 7 9850X3D and the Intel Core Ultra 5 235HX have unlocked multipliers.

Specification Differences

The two processors differ across nearly every major specification category. The AMD Ryzen 7 9850X3D uses 8 cores and 16 threads, while the Intel Core Ultra 5 235HX uses 14 cores and 14 threads. Base clocks differ by 1.80 GHz, with AMD at 4.70 GHz and Intel at 2.90 GHz. Boost clocks differ by 0.50 GHz, with AMD at 5.60 GHz and Intel at 5.10 GHz. TDP differs by 65 W, with AMD at 120 W and Intel at 55 W.

The process nodes differ by one generation step: AMD uses TSMC's 4 nm process, Intel uses TSMC's 3 nm process. Transistor counts differ by 9,485 million, with AMD at 8,315 million and Intel at 17,800 million. Die sizes differ by 172.4 mm², with AMD at 70.6 mm² and Intel at 243 mm². Cache configurations differ in every level: L1 is 80 KB per core for AMD versus 192 KB per core for Intel; L2 is 1 MB per core for AMD versus 3 MB per core for Intel; L3 is 96 MB shared for AMD versus 24 MB shared for Intel.

Memory bandwidth differs by 12.8 GB/s, with AMD at 89.6 GB/s and Intel at 102.4 GB/s. ECC support is present on AMD, absent on Intel. PCIe lanes differ by 4 lanes, with AMD at 24 lanes and Intel at 20 lanes, both Gen 5. Integrated graphics differ: AMD uses Radeon Graphics, Intel uses Arc Xe-LPG Graphics 48EU. The market segments differ: AMD is a desktop processor, Intel is a mobile processor. Release dates differ by about one year: AMD released on 2026-01-28, Intel on 2025-01-12. The AMD part has a launch MSRP of $499; Intel has no recorded launch MSRP. Part numbers are 100-000001973 for AMD and SRVFL for Intel. Sockets differ: AMD uses AMD Socket AM5, Intel uses Intel BGA 2114.

The Verdict

The data points to two different usage profiles. The AMD Ryzen 7 9850X3D delivers its strongest results in integer-heavy and physics-based workloads, with a 63.6% lead in PassMark physics and a 26.7% lead in integer math. Its 96 MB L3 cache and 16 threads support sustained parallel tasks, as shown by the 1.1% PassMark multithread win and the 1.5% Cinebench R15 multicore win. The 92nd percentile ranking and 58386 average benchmark score place it slightly ahead of the Intel part in overall standing.

The Intel Core Ultra 5 235HX dominates single-threaded rendering and floating-point math, with a 54.6% lead in Cinebench R23 single-core and a 36.8% lead in floating-point math. Its 3 nm process node and 14 physical cores contribute to a 34.3% lead in Cinebench R23 multicore, a result that contradicts its 55 W TDP classification. The 91st percentile ranking and 52073 average benchmark score place it just behind AMD overall, but the specific workload results are far from one-sided.

For buyers prioritizing integer throughput, compression, and physics simulation, the AMD part shows the stronger recorded performance. For buyers prioritizing single-core rendering, floating-point math, and encryption, the Intel part delivers the larger wins. The Cinebench R23 multicore result complicates the picture: Intel wins that test by a wide margin despite losing the R15 multicore test by a small one. The database records no single winner across all metrics. The choice depends entirely on which benchmark family matches the intended workload.