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

Head-to-Head Benchmarks

The benchmark comparison between the Intel Core Ultra 5 235T and the Intel Core i5-13600K is a study in contrasting strengths. The i5-13600K claims more overall wins, taking 10 of the 17 head-to-head tests, but the Ultra 5 235T secures some of the most decisive victories, particularly in single-threaded and specialized workloads. The data reveals that this is not a simple generational upgrade; instead, each processor is optimized for different tasks.

The most striking result in the entire comparison is the Cinebench R23 single-core test. The Ultra 5 235T scores 3703 points against the i5-13600K's 2000.5, a delta of 85.1%. This massive lead indicates a fundamental advantage in per-thread performance for the Arrow Lake chip. Similarly, in Cinebench R15 single-core, the Ultra 5 235T wins 373 to 287.5, a 29.7% advantage, and in Passmark's single-thread test, it leads 4339 to 4124, a 5.2% margin. The i5-13600K's boost clock is listed at 5.10 GHz compared to the Ultra 5's 5.00 GHz, yet the newer architecture still delivers far superior single-threaded results, suggesting a significant IPC (instructions per clock) improvement.

The i5-13600K fights back in multi-threaded tests, leveraging its higher thread count. It wins Cinebench R15 multi-core with 3642 points versus 2644, a 27.4% lead, and Cinebench R20 multi-core with 13373 versus 11017, a 17.6% lead. The Passmark multithread test also favors the i5-13600K, 37680 to 30918, a 17.9% difference. However, the Ultra 5 235T reverses this trend in the newer Cinebench R23 multi-core test, scoring 26232 against 24221, an 8.3% win. This is a critical data point: despite having 6 fewer threads (14 vs 20), the Ultra 5's superior single-core performance and architectural efficiency allow it to reclaim the lead in this more demanding workload.

Beyond the core Cinebench and Passmark suites, the two processors split specialized tasks. The i5-13600K dominates in integer-heavy and data-centric operations. It wins Passmark integer math by a 31.2% margin (122481 vs 84244), data compression by 38.1% (476394 vs 295100), random string sorting by 30.7% (51073 vs 35377), data encryption by 13.4% (27075 vs 23457), and extended instructions by 19.4% (28805 vs 23212). Conversely, the Ultra 5 235T shows a commanding lead in floating-point and prime-number calculations. It wins floating-point math 106546 to 90538, a 17.7% margin, and find prime numbers 318 to 155, an extraordinary 105.2% lead. The physics test is nearly a tie, with the i5-13600K edging out 2258 to 2157, a slim 4.5% margin.

Architecture Differences

The two CPUs are built on fundamentally different foundations. The Intel Core Ultra 5 235T uses the Arrow Lake architecture, specifically the Arrow Lake-S codename, and is fabricated on a 3 nm process node by TSMC. In contrast, the Intel Core i5-13600K uses the Raptor Lake architecture, with the Raptor Lake-S codename, and is built on Intel's 10 nm process node. This process difference is a major factor in the power and efficiency profiles, although the specific power draw numbers are not directly comparable in this data set.

The core configurations also differ significantly. Both have 14 cores, but the Ultra 5 235T has 14 threads, indicating it does not support Hyper-Threading on any of its cores. The i5-13600K has 20 threads, meaning it likely uses a hybrid design with performance cores that support Hyper-Threading and efficiency cores that do not. The cache hierarchy is also distinct. The Ultra 5 235T features 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 per core L1 and 2 MB per core L2. Both share 24 MB of L3 cache. The larger per-core caches on the Ultra 5 likely contribute to its single-threaded performance advantage.

Memory support is another differentiator. The Ultra 5 235T supports only DDR5 memory in a dual-channel configuration, with a listed memory bandwidth of 102.4 GB/s. The i5-13600K supports both DDR4 and DDR5, also in a dual-channel setup, but its memory bandwidth is not listed. On the PCIe front, the Ultra 5 235T provides 20 PCIe Gen 5 lanes from the CPU, while the i5-13600K provides 16. Integrated graphics also differ: the Ultra 5 235T includes Arc Xe-LPG Graphics with 24 execution units, while the i5-13600K has UHD Graphics 770.

The physical specifications vary as well. The Ultra 5 235T has a die size of 243 mm² and 17,800 million transistors. The i5-13600K has a slightly larger die at 257 mm², with the transistor count not listed. The sockets are incompatible: the Ultra 5 235T uses Intel Socket 1851, while the i5-13600K uses Intel Socket 1700. The Ultra 5 235T also has a locked multiplier, whereas the i5-13600K is multiplier-unlocked for overclocking.

Where Each One Wins

The Intel Core i5-13600K is the clear winner in multi-threaded productivity and integer-heavy workloads. For users running applications that compress data, sort large strings, encrypt data, or perform heavy integer math, the i5-13600K's 20 threads provide a substantial advantage. The Passmark data shows leads of 38.1% in compression, 31.2% in integer math, and 30.7% in string sorting. The i5-13600K also wins the Passmark multithread test by 17.9%, making it the stronger choice for general parallel processing tasks like video encoding, rendering in older benchmarks, or compiling code. Its support for ECC memory is another point in its favor for certain workstation environments.

The Intel Core Ultra 5 235T is the winner in single-threaded responsiveness and floating-point mathematics. The 85.1% lead in Cinebench R23 single-core is a definitive statement about its per-thread capability, making it ideal for applications where a single core is the bottleneck, such as many gaming scenarios, legacy software, or lightly-threaded design tools. Its 17.7% win in floating-point math suggests a strong showing in scientific computing, simulation, and other FP-heavy workloads. The 105.2% lead in prime number finding is a niche but notable indicator of ALU/FPU efficiency. The Ultra 5's win in Cinebench R23 multi-core, despite the thread count disadvantage, also makes it a viable option for modern, well-optimized multi-threaded workloads that scale with per-core performance rather than raw thread count.

Specification Differences

The following table outlines the key specification differences between the two processors, based solely on the recorded data.

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

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

| Architecture | Arrow Lake | Raptor Lake |

| Process Node | 3 nm | 10 nm |

| Foundry | TSMC | Intel |

| Threads | 14 | 20 |

| Base Clock | 2.20 GHz | 3.50 GHz |

| Boost Clock | 5.00 GHz | 5.10 GHz |

| TDP | 65 W | 125 W |

| 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 |

| ECC Memory | No | Yes |

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

| Integrated Graphics | Arc Xe-LPG Graphics 24EU | UHD Graphics 770 |

| Socket | Intel Socket 1851 | Intel Socket 1700 |

| Multiplier Unlocked | No | Yes |

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

| Launch MSRP | $247 | $319 |

FAQ

Q: Which processor has the higher single-core benchmark score?

A: The Intel Core Ultra 5 235T has the higher single-core score. In Cinebench R23 single-core, it scores 3703 versus 2000.5 for the i5-13600K, a 85.1% delta. It also leads in Passmark single-thread (4339 vs 4124) and Cinebench R15 single-core (373 vs 287.5).

Q: Which processor has more threads?

A: The Intel Core i5-13600K has more threads with 20, while the Intel Core Ultra 5 235T has 14 threads. Both have 14 cores, but the i5-13600K utilizes its thread advantage to win several multi-threaded benchmark tests.

Q: Which processor is better for data compression workloads?

A: The Intel Core i5-13600K is significantly better for data compression. In the Passmark data compression test, it scores 476394 against the Ultra 5 235T's 295100, a 38.1% lead.

Q: What is the difference in process node technology?

A: The Intel Core Ultra 5 235T is fabricated on a 3 nm process by TSMC, while the Intel Core i5-13600K is built on Intel's 10 nm process. This is a key architectural difference between the two.

Q: Do both processors support the same memory types?

A: No. The Intel Core Ultra 5 235T supports only DDR5 memory. The Intel Core i5-13600K supports both DDR4 and DDR5 memory.

Q: Which processor has a higher TDP?

A: The Intel Core i5-13600K has a higher TDP of 125 W, compared to the Intel Core Ultra 5 235T's TDP of 65 W.

The Verdict

The data presents a clear split. The Intel Core i5-13600K is the superior processor for multi-threaded, integer-heavy, and data-throughput workloads. Its 20 threads deliver decisive wins in Passmark multithread, data compression, integer math, and random string sorting. It also wins the older Cinebench R15 and R20 multi-core tests. This makes it the choice for users whose primary tasks involve heavy parallel processing, such as content creation with traditional renderers, extensive file compression, or database operations. Its support for ECC memory and unlocked multiplier for overclocking are additional advantages for this segment.

The Intel Core Ultra 5 235T is the better processor for single-threaded performance, floating-point calculations, and modern multi-threaded efficiency. Its overwhelming 85.1% lead in Cinebench R23 single-core and its 17.7% win in floating-point math are the standout data points. The 8.3% win in Cinebench R23 multi-core, despite having fewer threads, signals that its architecture is more efficient for modern, scalable workloads. This makes it the better choice for gamers, users of lightly-threaded applications, and professionals running FP-heavy simulations or scientific software. Its lower 65 W TDP and smaller 243 mm² die also suggest greater efficiency. Given its launch MSRP of $247 versus $319, the database suggests the Ultra 5 235T offers a higher performance-per-dollar in its areas of strength, but the i5-13600K remains the volume leader in raw multi-threaded tasks.