Intel Core i5-13600K vs Intel Core Ultra 5 245T Comparison

The Intel Core Ultra 5 245T and the Intel Core i5-13600K represent two distinct philosophies in desktop processor design. The data shows a fascinating split, with the newer Arrow Lake chip winning on efficiency and specific workload types, while the older Raptor Lake part dominates in raw multi-threaded throughput. The benchmark results indicate that the choice between them is not about a clear victor, but about which strengths align with a user's priorities.

Where Each One Wins

The benchmark data reveals a clear division of labor. The Intel Core i5-13600K wins 9 of the 17 head-to-head tests, while the Intel Core Ultra 5 245T wins 8. The i5-13600K’s victories are concentrated in heavily parallelized and memory-intensive tasks. It takes decisive wins in PassMark data compression (476394 vs 283812), integer math (122481 vs 88676), and random string sorting (51073 vs 34931). Its performance in Cinebench R15 and R20 multi-core tests also demonstrates a significant advantage in rendering workloads that scale with thread count.

Conversely, the Core Ultra 5 245T establishes its dominance in single-threaded and specific computational tasks. Its most striking victory is in Cinebench R23 single-core, where it scores 3699 against the i5-13600K’s 2000.5, a remarkable 84.9% advantage. It also wins in PassMark floating-point math (108499 vs 90538) and find prime numbers (324 vs 155), the latter by over double. The data suggests the Ultra 5 245T is the superior choice for applications that rely on per-core efficiency and specialized instruction processing, while the i5-13600K is better for broad, high-throughput parallel workloads.

Architecture Differences

The architectural gulf between these processors is wide. The Core Ultra 5 245T is built on Arrow Lake-S, using a 3 nm process from TSMC, while the Core i5-13600K uses Raptor Lake-S on Intel’s 10 nm node. This process advantage is a key factor in the Ultra 5’s efficiency and its strong single-thread performance. The transistor count also reflects the generational leap, with the Ultra 5 packing 17,800 million transistors on a 243 mm² die, compared to the i5-13600K’s 257 mm² die.

The core configurations are also fundamentally different. Both have 14 cores, but the Ultra 5 245T has 14 threads, indicating all cores are single-threaded. The i5-13600K has 20 threads, meaning it uses a mix of performance and efficiency cores with hyper-threading. The cache hierarchy differs as well. The Ultra 5 has a larger L1 cache at 192 KB per core and a larger L2 cache at 3 MB per core, while the i5-13600K has 80 KB and 2 MB per core, respectively. Both share 24 MB of L3 cache. The Ultra 5 245T also features newer Arc Xe-LPG Graphics with 64 execution units, while the i5-13600K is paired with the older UHD Graphics 770. Socket and platform support also diverge, with the Ultra 5 using Intel Socket 1851 and the i5-13600K using Intel Socket 1700.

Head-to-Head Benchmarks

The most telling comparison comes from the Cinebench suite. In R15 multi-core, the i5-13600K is 27.5% ahead with 3642 against 2641. In R20 multi-core, it maintains a 17.7% lead with 13373 against 11007. However, the tables turn in R23. Here, the Ultra 5 245T scores 26208, an 8.2% improvement over the i5-13600K’s 24221. This reversal suggests the newer architecture scales better with the more demanding R23 workload, possibly due to its superior memory bandwidth of 102.4 GB/s and more efficient core design.

Single-core results are even more lopsided. The Ultra 5 245T beats the i5-13600K by 29.4% in Cinebench R15 single-core (372 vs 287.5) and by 84.9% in R23 single-core (3699 vs 2000.5). The i5-13600K’s R23 single-core score appears anomalously low next to its R20 score, but the head-to-head delta is definitive. In PassMark’s single-thread test, the Ultra 5 again wins, scoring 4367 versus 4124, a 5.9% margin. The data strongly indicates that the Arrow Lake design is drastically more capable per clock cycle.

The PassMark suite further illustrates the split. The i5-13600K’s lead in data compression is a massive 40.4%, and it is also ahead in extended instructions by 23.4% and data encryption by 12.6%. Meanwhile, the Ultra 5 245T’s win in find prime numbers by 109% is its largest margin, followed by a 19.8% win in floating-point math. The physics test is a near tie, with the Ultra 5 edging out a 0.9% victory. These results paint a picture of the i5-13600K excelling in data movement and general integer work, while the Ultra 5 specializes in complex mathematical operations and single-thread responsiveness.

The Verdict

Based on the recorded data, the choice is clear for different user profiles. The Intel Core i5-13600K is the pick for users who prioritize heavy multi-threaded workloads such as video editing, 3D rendering in older benchmarks, and data compression tasks. Its 20 threads and 125 W TDP provide the raw parallel muscle that leads to wins in Cinebench R15, R20, and multiple PassMark tests. The data shows it is also the stronger option for integer-heavy calculations.

The Intel Core Ultra 5 245T, with its 65 W TDP and 14 threads, is the better choice for users who value single-thread performance above all else, such as in gaming or lightly-threaded productivity applications. Its decisive wins in Cinebench R23 single-core and PassMark single-thread tests, alongside its superior performance in floating-point math, make it a compelling option for software that cannot utilize many cores. The data also suggests it is the more future-proof platform, with its newer socket, DDR5-only memory support, and more advanced process node.

FAQ

Q: Which processor has better single-core performance?

A: The Intel Core Ultra 5 245T is significantly ahead in single-core tests. It wins Cinebench R15 single-core by 29.4% and Cinebench R23 single-core by 84.9% over the Intel Core i5-13600K.

Q: Which processor is better for multi-threaded rendering?

A: It depends on the benchmark. The Intel Core i5-13600K wins Cinebench R15 and R20 multi-core by 27.5% and 17.7%, respectively. However, the Intel Core Ultra 5 245T wins Cinebench R23 multi-core by 8.2%.

Q: What is the difference in thread count?

A: The Intel Core Ultra 5 245T has 14 threads, while the Intel Core i5-13600K has 20 threads. This is because the i5-13600K supports hyper-threading.

Q: Do both processors have the same amount of L3 cache?

A: Yes, both the Intel Core Ultra 5 245T and the Intel Core i5-13600K have 24 MB of shared L3 cache.

Q: Which processor has a higher TDP?

A: The Intel Core i5-13600K has a TDP of 125 W, while the Intel Core Ultra 5 245T has a TDP of 65 W.

Q: Which processor is better for data compression tasks?

A: The Intel Core i5-13600K is clearly superior in data compression, scoring 476394 against the Intel Core Ultra 5 245T’s 283812, a 40.4% difference.

Specification Differences

| Specification | Intel Core Ultra 5 245T | Intel Core i5-13600K |

| :--- | :--- | :--- |

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

| Threads | 14 | 20 |

| Base Clock | 2.20 GHz | 3.50 GHz |

| TDP | 65 W | 125 W |

| Socket | Intel Socket 1851 | Intel Socket 1700 |

| Architecture | Arrow Lake | Raptor Lake |

| 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) |

| Memory Support | DDR5 | DDR4, DDR5 |

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

| PCIe Lanes | Gen 5, 20 Lanes (CPU only) | Gen 5, 16 Lanes (CPU only) |

| Integrated Graphics | Arc Xe-LPG Graphics 64EU | UHD Graphics 770 |

| Release Date | 2025-01-06 | 2022-09-26 |

| Launch MSRP | $270 | $319 |

| Multiplier Unlocked | false | true |

| Part Number | SRVFF | SRMBD |