Intel Core i9-13900HK vs Intel Core Ultra 5 245T Comparison

Head-to-Head Benchmarks

The benchmark data between the Intel Core Ultra 5 245T and the Intel Core i9-13900HK is decisively lopsided. Out of 17 recorded head-to-head tests, the Ultra 5 245T claims 14 wins, while the i9-13900HK manages only 3. The biggest margin comes in Cinebench R23 single-core, where the Ultra 5 245T scores 3699 against 1843.5 for the i9-13900HK, a 100.7% advantage. That is not a small gap; it is a complete rout in single-threaded performance.

Multi-core results tell a similar story, though with more variation. In Cinebench R23 multi-core, the Ultra 5 245T posts 26208 versus 16025, a 63.5% lead. Cinebench R20 multi-core shows a 15.3% advantage (11007 vs 9548), and Cinebench R15 multi-core is 10.1% ahead (2641 vs 2398). The Ultra 5 245T also wins PassMark multi-thread by 9.4% (30833 vs 28194) and PassMark physics by 20.1% (2278 vs 1896).

Single-core performance is consistently in favor of the Ultra 5 245T across all Cinebench versions. In R15 single-core, it leads 372 to 263 (41.4%); in R20 single-core, 1553 to 1347 (15.3%). PassMark single-thread shows 4367 versus 3810, a 14.6% edge. The pattern is clear: the newer architecture delivers substantially higher per-thread throughput.

The i9-13900HK's three wins are worth examining. PassMark data compression goes to the i9-13900HK at 329454 versus 283812, a 13.9% difference. PassMark integer math also favors the i9-13900HK at 94120 versus 88676, a 5.8% margin. PassMark random string sorting goes to the i9-13900HK at 36662 versus 34931, a 4.7% advantage. These are all throughput-oriented workloads where the i9's higher thread count (20 threads versus 14) can compensate for its slower cores.

Other notable wins for the Ultra 5 245T include PassMark find prime numbers, where it scores 324 against 110, a massive 194.5% lead. PassMark floating point math shows 108499 versus 68020, a 59.5% margin. PassMark data encryption goes 23656 to 19198 (23.2%), and PassMark extended instructions goes 22071 to 19534 (13%). Overall average benchmark scores reflect this: the Ultra 5 245T averages 38194, while the i9-13900HK averages 37425. The Ultra 5 245T sits at the 86th percentile of all CPUs, the i9-13900HK at the 85th.

Where Each One Wins

The Ultra 5 245T wins in almost every category that matters for modern desktop use. Single-thread performance is far ahead, which translates to snappier application launches, better responsiveness in lightly threaded software, and superior gaming performance in most scenarios. Its Cinebench R23 single-core score of 3699 is more than double the i9's 1843.5, meaning the Ultra 5 245T will feel faster in everyday tasks that rely on one or two cores.

For multi-threaded productivity, the Ultra 5 245T also holds a clear edge. Cinebench R23 multi-core at 26208 versus 16025 is a 63.5% advantage. Rendering, video encoding, and 3D workloads that scale across cores will complete faster on the Ultra 5 245T. Even in PassMark multi-thread, which is a broader measure, the Ultra 5 245T leads by 9.4%. Physics simulation, a core-heavy workload, shows a 20.1% win for the Ultra 5 245T.

The i9-13900HK's wins are narrower and more specific. Data compression favors it by 13.9%, integer math by 5.8%, and random string sorting by 4.7%. These are workloads that benefit from having 20 threads available, even if each individual thread is slower. If the primary use case is file archiving, compression, or integer-heavy database operations, the i9-13900HK can outpace the Ultra 5 245T. But the margins are modest compared to the Ultra 5 245T's advantages in floating point (59.5%), prime number finding (194.5%), and encryption (23.2%).

The i9-13900HK is a mobile processor with a 45W TDP, while the Ultra 5 245T is a desktop part with a 65W TDP. That difference in power envelope explains some of the performance gap, but not all of it. The Ultra 5 245T uses a 3nm process from TSMC, while the i9-13900HK uses Intel's 10nm process. Node advantage matters, and the data shows it clearly.

Architecture Differences

The two processors come from different design eras. The Intel Core Ultra 5 245T is part of the Core Ultra Series 2, built on Arrow Lake architecture (specifically Arrow Lake-S) using a 3nm process at TSMC. It has 14 cores and 14 threads, meaning no hyperthreading; each core is a physical core with one thread. The i9-13900HK is a Raptor Lake-H part, built on Intel's 10nm process, with 14 cores and 20 threads. The i9 uses a hybrid design with performance and efficiency cores, and its hyperthreading on the performance cores gives it the extra 6 threads.

Cache configurations differ notably. The Ultra 5 245T has 192 KB of L1 cache per core, 3 MB of L2 per core, and 24 MB of shared L3. The i9-13900HK has 80 KB of L1 per core, 2 MB of L2 per core, and the same 24 MB of shared L3. The Ultra 5 245T's larger per-core caches likely contribute to its strong single-thread performance.

Memory support separates the two as well. The Ultra 5 245T supports only DDR5 memory in dual-channel mode, with a memory bandwidth of 102.4 GB/s. The i9-13900HK supports both DDR4 and DDR5, also dual-channel, but the database does not record a memory bandwidth figure for it. ECC memory is supported on the Ultra 5 245T but not on the i9-13900HK.

PCIe connectivity favors the Ultra 5 245T. It offers Gen 5 with 20 lanes from the CPU, while the i9-13900HK offers Gen 5 with only 8 lanes. For systems with multiple Gen 5 NVMe drives or a Gen 5 GPU, the Ultra 5 245T has significantly more bandwidth headroom.

Integrated graphics differ as well. The Ultra 5 245T uses Arc Xe-LPG Graphics with 64 execution units. The i9-13900HK uses Iris Xe Graphics with 96 EUs. The i9 has more execution units, but the Ultra 5's newer architecture may compensate; the benchmark data does not include iGPU tests, so no direct comparison is possible from the recorded numbers.

The Ultra 5 245T has a base clock of 2.20 GHz and a boost clock of 5.10 GHz. The i9-13900HK has a base clock of 2.60 GHz and a boost clock of 5.40 GHz. Despite the i9's higher clocks, the Ultra 5 245T wins nearly every benchmark, which points to a significant IPC (instructions per clock) advantage from the newer architecture.

Socket and form factor are entirely different. The Ultra 5 245T uses Intel Socket 1851 and is a desktop processor. The i9-13900HK uses Intel BGA 1744 and is a mobile processor. The i9 is not upgradeable in a desktop sense; it is soldered to a laptop motherboard. The Ultra 5 245T is a socketed desktop part with a production status of Active. The i9-13900HK also has an Active production status.

The Ultra 5 245T has a locked multiplier, while the i9-13900HK is multiplier-unlocked. That means the i9 can be overclocked on supported platforms, though as a mobile chip, that capability is limited by laptop cooling and firmware. The Ultra 5 245T cannot be overclocked via multiplier adjustments.

Transistor count and die size are recorded only for the Ultra 5 245T: 17,800 million transistors on a 243 mm² die. The i9-13900HK has no transistor count recorded, but its die size is 257 mm². Both are large dies, but the Ultra 5 245T packs more transistors into a smaller area, consistent with its 3nm process.

The Verdict

The data is unambiguous. The Intel Core Ultra 5 245T outperforms the Intel Core i9-13900HK in 14 of 17 benchmarks, often by wide margins. The most extreme example is Cinebench R23 single-core, where the Ultra 5 245T is 100.7% faster. In multi-core Cinebench R23, it is 63.5% faster. For anyone building a desktop system, the Ultra 5 245T is the clear choice based on recorded performance.

The i9-13900HK retains some niche appeal. Its 20 threads give it an edge in data compression (13.9%), integer math (5.8%), and random string sorting (4.7%). If the workload is heavily integer-based with large data sets, the i9 can pull ahead. But those wins are narrow, and they come in a mobile package that cannot be easily upgraded or configured with high-end desktop cooling.

The Ultra 5 245T also offers advantages beyond raw benchmark scores. It has more PCIe lanes (20 versus 8), supports ECC memory, and uses a newer 3nm process. Its launch MSRP is $270, which is recorded in the database, while the i9-13900HK's launch MSRP is $697. The Ultra 5 245T is the better processor by almost every measurable metric in the database.

Users who need a mobile processor for a laptop should consider the i9-13900HK, since it is designed for that form factor. But as a desktop part, the Ultra 5 245T is clearly superior in the recorded tests. The i9's wins are limited to specific compression and integer workloads, and even those margins are small compared to the Ultra 5's broad dominance.

FAQ

Q: Which processor has a higher single-core score in Cinebench R23?

A: The Intel Core Ultra 5 245T scores 3699, which is 100.7% higher than the Intel Core i9-13900HK's 1843.5.

Q: How many threads does each processor have?

A: The Intel Core Ultra 5 245T has 14 threads (14 cores), while the Intel Core i9-13900HK has 20 threads (14 cores with hyperthreading).

Q: Does the Intel Core Ultra 5 245T support ECC memory?

A: Yes, the Ultra 5 245T supports ECC memory. The Intel Core i9-13900HK does not support ECC memory.

Q: Which processor wins in PassMark data compression?

A: The Intel Core i9-13900HK wins, scoring 329454 versus 283812 for the Ultra 5 245T, a 13.9% advantage.

Q: What is the difference in PCIe lanes between the two?

A: The Intel Core Ultra 5 245T offers Gen 5 with 20 lanes from the CPU, while the Intel Core i9-13900HK offers Gen 5 with 8 lanes from the CPU.

Q: Which processor has a higher average benchmark score?

A: The Intel Core Ultra 5 245T has an average benchmark score of 38194, compared to 37425 for the Intel Core i9-13900HK.

Specification Differences

| Specification | Intel Core Ultra 5 245T | Intel Core i9-13900HK |

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

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

| Cores | 14 | 14 |

| Threads | 14 | 20 |

| Base Clock | 2.20 GHz | 2.60 GHz |

| Boost Clock | 5.10 GHz | 5.40 GHz |

| TDP | 65 W | 45 W |

| Socket | Intel Socket 1851 | Intel BGA 1744 |

| Architecture | Arrow Lake | Raptor Lake |

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

| Process Node | 3 nm | 10 nm |

| Foundry | TSMC | Intel |

| Die Size | 243 mm² | 257 mm² |

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

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

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

| Memory Support | DDR5 | DDR4, DDR5 |

| Memory Bandwidth | 102.4 GB/s | Not recorded |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 20 Lanes (CPU only) | Gen 5, 8 Lanes (CPU only) |

| Integrated Graphics | Arc Xe-LPG Graphics 64EU | Iris Xe Graphics 96EU |

| Market Segment | Desktop | Mobile |

| Multiplier Unlocked | No | Yes |

| Launch MSRP | $270 | $697 |