Intel Core i5-13420H

The Intel Core i5-13420H is a 13th-generation mobile processor built on the Raptor Lake-H architecture. It pairs 8 cores with 12 threads, a base clock of 2.10 GHz, and a boost clock of 4.60 GHz, all within a 45W TDP envelope. The chip uses a 10nm process from Intel, supports DDR4 and DDR5 memory in dual-channel mode, and offers PCIe Gen 5 with 8 CPU lanes. Its integrated Iris Xe Graphics with 80 execution units covers light graphics duties. In the aggregate benchmark database, the i5-13420H scores 18691 points, placing it in the 77th percentile of all CPUs tested. That average sits within 0.6% of four nearest rivals, making it a tightly contested part in its performance segment.

Single-Thread vs Multi-Thread Behavior

The i5-13420H shows a clear split between single-thread and multi-thread workloads. In 3DMark, the single-thread score is 948, while the max-threads score reaches 5587 — a ratio of roughly 5.9x, which reflects the 8-core/12-thread configuration. Cinebench R23 tells a similar story: single-core scores 2095, multi-core 14845, a 7.1x jump. PassMark’s single-thread result of 3396 versus multithread of 17475 gives a 5.1x multiplier. These ratios are typical for a hybrid-core mobile part that relies on a high boost clock for lightly threaded tasks and on a moderate core count for parallel work.

For real-world use, the single-thread performance is strong enough to handle everyday responsiveness — web browsing, office suites, and light application launches all benefit from the 4.60 GHz boost. The multi-thread scores are respectable but not class-leading; they indicate that the chip can handle video editing, 3D rendering, and software compilation without becoming a bottleneck, but it won’t match desktop parts with many more cores. The 12MB shared L3 cache and 2MB per-core L2 help maintain consistent throughput across threads. The 80KB per-core L1 is standard for the architecture.

The 3DMark scaling from 2 threads (1871) to 4 threads (3357) to 8 threads (4614) shows near-linear gains up to 8 threads, then a slight plateau at max threads (5587). This suggests that the 12-thread count (likely 4 performance + 4 efficiency cores with hyper-threading) provides diminishing returns beyond 8 threads, but still adds meaningful headroom for heavily threaded workloads. For applications that use more than 8 threads, the chip’s performance is limited by its core count, not by clock speed.

Who Should Consider It

Given the benchmark profile, the i5-13420H suits users who need a balanced mobile processor for both productivity and moderate content creation. The single-thread scores are high enough for snappy daily use, while the multi-thread scores allow for occasional video exports or 3D rendering without waiting excessively. Gamers will find the single-thread performance adequate for most titles, especially when paired with a discrete GPU — the integrated Iris Xe 80EU is not a gaming solution, but it handles display output and light media tasks.

The 45W TDP places it in the performance laptop segment, not ultraportables. It supports DDR4 and DDR5 memory, giving system builders flexibility in memory choice, though the dual-channel bus is standard. The PCIe Gen 5 interface with 8 CPU lanes allows fast NVMe SSDs and discrete GPUs to run at full bandwidth. The locked multiplier (multiplierUnlocked: false) means no overclocking, but that’s typical for mobile parts.

This chip is a reasonable choice for a mobile workstation or a high-end consumer laptop that needs to handle CPU-heavy tasks like software development, data analysis, or 3D modeling. The 77th percentile ranking indicates it outperforms the majority of CPUs in the database, but it is not a flagship. For users who primarily do single-threaded tasks, the i5-13420H will feel fast; for those who need heavy multi-core crunching, a chip with more cores would be better, but the i5-13420H is a capable middle ground.

Benchmark Performance

The i5-13420H’s average benchmark score is 18691, with a percentile rank of 77. This puts it in the upper quarter of all tested CPUs. Its closest rival, the AMD EPYC 7643, scores 18697 — a delta of 0%, meaning the two are statistically tied. The AMD Ryzen 3 PRO 8300GE scores 18751, which is 0.3% higher than the i5-13420H, while the AMD EPYC 9255 scores 18604 (0.5% lower) and the Intel Core i3-14100F scores 18574 (0.6% lower). These deltas are tiny; the i5-13420H is effectively within a rounding error of all four rivals in average score.

Looking at specific benchmarks, Cinebench R23 multi-core yields 14845, which is a strong result for a 45W mobile chip. Single-core R23 at 2095 is also competitive. In PassMark, the multithread score of 17475 and single-thread of 3396 align with the overall average. The data compression score of 209450 and encryption score of 11559 indicate solid performance for archive handling and security tasks. Floating-point math (42806) and integer math (58156) are both respectable, showing that the chip handles a variety of numeric workloads well.

The 3DMark results show consistent scaling: 2 threads (1871), 4 threads (3357), 8 threads (4614), and max threads (5587). The jump from 8 to max threads is only about 21%, which suggests that the efficiency cores contribute less than the performance cores. This is typical of hybrid designs. The single-thread score of 948 is modest, but it’s in line with other mobile chips in this class.

How It Compares

AMD EPYC 7643 — The EPYC 7643 averages 18697, just 6 points above the i5-13420H (delta 0%). Despite the EPYC being a server-class processor with far more cores, the average benchmark score is identical. This is likely because the benchmark suite includes many single-threaded tests where the i5’s high boost clock compensates for its lower core count. In practice, the i5-13420H would be a better choice for a laptop, while the EPYC targets data centers.

AMD Ryzen 3 PRO 8300GE — This rival scores 18751, which is 0.3% higher than the i5-13420H. The difference is negligible in real-world terms. The Ryzen 3 PRO is a lower-power desktop part, so its performance parity with a 45W mobile chip is noteworthy. The i5-13420H offers more threads (12 vs presumably fewer, but we don’t have specs), but the average scores are nearly identical.

AMD EPYC 9255 — With an average of 18604, the EPYC 9255 trails the i5-13420H by 0.5%. Again, this is a server chip with a different design goal. The i5-13420H’s advantage is small but consistent across the benchmark suite. The delta of 0.5% means the i5-13420H is slightly faster on average, which is impressive given the EPYC’s expected multi-thread dominance.

Intel Core i3-14100F — The i3-14100F scores 18574, 0.6% lower than the i5-13420H. This is a desktop i3 with fewer cores and threads, yet the i5-13420H only edges it out by a small margin. The i5’s higher boost clock and additional efficiency cores likely contribute to its lead. For laptop users, the i5-13420H brings comparable performance to a budget desktop chip, which speaks to its efficiency.

Power and Thermals

The i5-13420H has a TDP of 45W, which is typical for a performance mobile processor. This TDP class implies that the laptop manufacturer must provide a cooling solution capable of dissipating that heat under sustained loads. A single-fan design with a decent heat pipe might suffice for short bursts, but for all-core workloads like Cinebench R23 multi-core, a more robust solution — dual fans, larger vapor chamber, or thicker chassis — is necessary to maintain boost clocks. The 10nm process helps with efficiency, but 45W is still a significant thermal load in a thin chassis.

The chip is not multiplier-unlocked, so overclocking is off the table; power and thermal management are left to the platform. The base clock of 2.10 GHz and boost of 4.60 GHz indicate a wide frequency range, which means the CPU can drop to low power states when idle and ramp up quickly when needed. The integrated Iris Xe 80EU also generates some heat, but it’s minor compared to the CPU cores. For a laptop, users should expect fan noise under heavy loads, but the 45W TDP is manageable with modern cooling designs.

FAQ

Q: Does the Intel Core i5-13420H support DDR5 memory?

A: Yes, it supports both DDR4 and DDR5 memory in a dual-channel configuration.

Q: What is the boost clock of the i5-13420H?

A: The maximum boost clock is 4.60 GHz.

Q: How many cores and threads does the i5-13420H have?

A: It has 8 cores and 12 threads.

Q: What is the TDP of the i5-13420H?

A: The TDP is 45W.

Q: Does the i5-13420H have an unlocked multiplier for overclocking?

A: No, the multiplier is locked (multiplierUnlocked: false).

Q: What is the integrated graphics solution in the i5-13420H?

A: It includes Iris Xe Graphics with 80 execution units.

Q: What is the L3 cache size?

A: The shared L3 cache is 12 MB.

Q: When was the i5-13420H released?

A: It was released on January 3, 2023.