Intel Core i5-13600K vs Intel Core Ultra 5 235H Comparison

The Intel Core i5-13600K and Intel Core Ultra 5 235H are closely matched in overall average benchmark scores, with the desktop part holding a slim 0.4% edge (37685 vs 37522). However, the data reveals two fundamentally different performance profiles: the i5-13600K dominates throughput-heavy multicore and data-processing workloads, while the Ultra 5 235H counters with superior single-core efficiency and specific computational strengths. The benchmark results show a 10-7 split in favor of the i5-13600K across the head-to-head tests, but the nature of those wins dictates which processor is appropriate for which task.

Head-to-Head Benchmarks

The most decisive victory for the Intel Core i5-13600K comes in integer math, where it scores 122481 against the Ultra 5 235H’s 74247—a commanding 65% advantage. This pattern repeats across data compression, where the i5-13600K’s 476394 score beats the Ultra 5 235H’s 301979 by 57.8%, and in random string sorting, where it leads 51073 to 36208 (41.1% delta). These results indicate that legacy x86 integer-heavy applications and file-compression workloads will run substantially faster on the desktop chip.

The multicore rendering tests paint a more nuanced picture. In Cinebench R15 multicore, the i5-13600K wins decisively with 3642 versus 2580 (41.2% ahead), and in Cinebench R20 multicore it leads 13373 to 10751 (24.4% ahead). However, the tables turn in Cinebench R23 multicore, where the Ultra 5 235H scores 25598 against the i5-13600K’s 24221 (5.4% ahead). This reversal suggests the newer architecture scales better under sustained long-duration loads, even with fewer threads (14 vs 20).

Single-core performance is a clear win for the Ultra 5 235H. In Cinebench R23 single-core, it posts 3613 versus the i5-13600K’s 2000.5—a massive 44.6% delta. Cinebench R15 single-core also favors the mobile chip (364 vs 287.5, 21% ahead), and PassMark single-thread tests show the Ultra 5 leading 4359 to 4124 (5.4% ahead). The one anomaly is Cinebench R20 single-core, where the i5-13600K wins 1887 to 1517 (24.4% ahead), suggesting benchmark-version-specific optimization differences.

In PassMark’s mixed workload suite, the i5-13600K wins multithread (37680 vs 30091, 25.2% ahead), physics (2258 vs 1985, 13.8% ahead), extended instructions (28805 vs 23354, 23.3% ahead), and data encryption (27075 vs 23121, 17.1% ahead). The Ultra 5 235H counters in floating-point math (93509 vs 90538, 3.2% ahead) and prime-number finding (239 vs 155, 35.1% ahead). With an 86th vs 85th percentile ranking, both sit nearly identically against all CPUs, but the distribution of wins could not be more different.

Architecture Differences

The two processors represent opposite ends of Intel’s design philosophy. The i5-13600K uses Raptor Lake architecture on a 10 nm process from Intel’s own foundry, while the Ultra 5 235H uses Arrow Lake architecture on a 3 nm process fabricated by TSMC. This node advantage helps explain the Ultra 5’s single-core dominance and lower power requirements.

Core configurations differ despite identical core counts. Both have 14 cores, but the i5-13600K supports 20 threads via hyperthreading, while the Ultra 5 235H has only 14 threads (no hyperthreading). Cache hierarchies also diverge significantly: the i5-13600K has 80 KB L1 and 2 MB L2 per core with 24 MB shared L3, whereas the Ultra 5 235H features larger per-core caches (192 KB L1, 3 MB L2) but smaller 18 MB shared L3. The larger L3 on the desktop chip likely contributes to its data-compression and integer-math advantages.

Memory support differs: the i5-13600K supports both DDR4 and DDR5 with dual-channel bus, while the Ultra 5 235H supports DDR5 and LPDDR5X with a dual-channel bus and a rated 102.4 GB/s bandwidth. The i5-13600K supports ECC memory; the Ultra 5 does not. PCIe connectivity also differs, with the i5-13600K offering Gen 5 with 16 CPU lanes versus the Ultra 5’s Gen 5 with 8 CPU lanes.

The integrated graphics are different tiers: the i5-13600K has UHD Graphics 770, while the Ultra 5 235H includes Arc Graphics 140T. The desktop chip has an unlocked multiplier; the mobile chip is locked. Production status is active for both, but the i5-13600K was released in September 2022 with a launch MSRP of $319, while the Ultra 5 235H arrived in January 2025 with no listed launch MSRP. The socket difference (Intel Socket 1700 vs Intel BGA 2049) and TDP (125W vs 28W) further cement their desktop-versus-mobile positioning.

The Verdict

The data supports a clear split decision. For users running heavily multithreaded desktop workloads—data compression, integer-heavy calculations, random string sorting, encryption—the Intel Core i5-13600K is the unequivocal choice. Its 65% lead in integer math and 57.8% lead in data compression are the largest margins in the entire comparison. The 20 threads versus 14 threads and larger 24 MB L3 cache translate directly into these wins.

The Intel Core Ultra 5 235H wins on raw single-core performance, where its 44.6% lead in Cinebench R23 single-core is the single biggest victory for either chip. It also wins Cinebench R23 multicore, floating-point math, and prime-number finding. This makes it the better choice for applications that are lightly threaded or that benefit from the newer Arrow Lake architecture’s efficiency, especially in mobile form factors where the 28W TDP versus 125W TDP matters.

The overall average scores (37685 vs 37522) and percentile rankings (86 vs 85) suggest near-parity in aggregate performance. But the benchmark distribution shows they achieve that parity through entirely different means. The i5-13600K is a desktop workhorse optimized for parallel throughput; the Ultra 5 235H is a mobile processor with superior per-core efficiency.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core i5-13600K has a slightly higher average benchmark score of 37685, compared to the Intel Core Ultra 5 235H’s 37522, a 0.4% difference.

Q: How do their thread counts differ?

A: The i5-13600K has 20 threads from 14 cores, while the Ultra 5 235H has 14 threads from 14 cores (no hyperthreading).

Q: Which chip is better for Cinebench R23 multicore rendering?

A: The Ultra 5 235H wins Cinebench R23 multicore with a score of 25598 versus the i5-13600K’s 24221, a 5.4% advantage.

Q: What is the biggest performance gap in the head-to-head tests?

A: The largest margin is in PassMark integer math, where the i5-13600K leads by 65% (122481 vs 74247). The second-largest is in Cinebench R23 single-core, where the Ultra 5 leads by 44.6% (3613 vs 2000.5).

Q: Do both processors support ECC memory?

A: No. ECC memory support is listed as true for the i5-13600K and false for the Ultra 5 235H.

Q: Which chip has a smaller manufacturing process?

A: The Ultra 5 235H uses a 3 nm process from TSMC, while the i5-13600K uses a 10 nm process from Intel.

Where Each One Wins

The Intel Core i5-13600K wins in 10 of 17 head-to-head benchmarks, with its strongest showings in data-processing tasks. It dominates data compression (57.8% ahead), integer math (65% ahead), random string sorting (41.1% ahead), and extended instructions (23.3% ahead). It also wins Cinebench R15 multicore (41.2% ahead), Cinebench R20 multicore and single-core (both 24.4% ahead), PassMark multithread (25.2% ahead), data encryption (17.1% ahead), and physics (13.8% ahead). The desktop chip’s 20 threads, larger 24 MB L3 cache, and higher 5.10 GHz boost clock versus 5.00 GHz likely drive these wins.

The Intel Core Ultra 5 235H wins 7 benchmarks, led by Cinebench R23 single-core (44.6% ahead) and prime-number finding (35.1% ahead). It also wins Cinebench R15 single-core (21% ahead), Cinebench R23 multicore (5.4% ahead), PassMark single-thread (5.4% ahead), and floating-point math (3.2% ahead). The 3 nm TSMC process and per-core cache structure (192 KB L1, 3 MB L2) give it a per-thread efficiency edge that the older 10 nm Raptor Lake design cannot match. For single-threaded responsiveness and power-constrained mobile workloads, the Ultra 5 is the clear winner.

Specification Differences

| Specification | Intel Core i5-13600K | Intel Core Ultra 5 235H |

|---|---|---|

| Series | Core 13th Gen | Core Ultra Series 2 |

| Architecture | Raptor Lake | Arrow Lake |

| Codename | Raptor Lake-S | Arrow Lake-H |

| Process Node | 10 nm | 3 nm |

| Foundry | Intel | TSMC |

| Threads | 20 | 14 |

| Base Clock | 3.50 GHz | 2.40 GHz |

| Boost Clock | 5.10 GHz | 5.00 GHz |

| TDP | 125 W | 28 W |

| Socket | Intel Socket 1700 | Intel BGA 2049 |

| L1 Cache | 80 KB (per core) | 192 KB (per core) |

| L2 Cache | 2 MB (per core) | 3 MB (per core) |

| L3 Cache | 24 MB (shared) | 18 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5, LPDDR5X |

| Memory Bandwidth | N/A | 102.4 GB/s |

| ECC Memory | Yes | No |

| PCIe Lanes (CPU only) | Gen 5, 16 Lanes | Gen 5, 8 Lanes |

| Integrated Graphics | UHD Graphics 770 | Arc Graphics 140T |

| Market Segment | Desktop | Mobile |

| Multiplier Unlocked | Yes | No |

| Launch MSRP | $319 | N/A |

| Part Number | SRMBD | SRQAP |