Intel Core i7-12700K vs Intel Core i7-13800H Comparison

The Intel Core i7-12700K and Intel Core i7-13800H represent two distinct approaches to Intel’s hybrid architecture: one is a desktop flagship from the 12th Gen Alder Lake family, the other a mobile powerhouse from the 13th Gen Raptor Lake lineup. The benchmark data shows a decisive overall victory for the desktop part, which wins 14 of the 17 head-to-head tests, but the mobile chip claims three notable wins, including a significant single-core score. The 12700K’s average benchmark score of 35287 edges out the 13800H’s 34988, placing both at the 84th percentile of all CPUs. This comparison highlights how architectural generation, power envelope, and market segment shape real-world performance.

Head-to-Head Benchmarks

The most dramatic gap between these two processors appears in multi-threaded and compute-heavy workloads. In Cinebench R15 multicore, the 12700K scores 3325 versus the 13800H’s 1850, a massive 79.7% advantage. That trend continues in Cinebench R20 multicore, where the desktop chip posts 12229 against 7710, a 58.6% lead. The same 58.6% delta appears in Cinebench R20 singlecore, with scores of 1726 and 1088 respectively. These results indicate that the 12700K’s higher base and boost clocks, combined with its desktop power budget, translate into substantially faster rendering performance across successive Cinebench versions.

PassMark tests reinforce this dominance in productivity and data-processing tasks. The 12700K excels in data compression with a score of 446595 versus 299179, a 49.3% advantage. Data encryption shows a 32.1% lead, with scores of 23408 and 17726. The desktop part also wins extended instructions by 60.4% (28885 vs 18011) and floating-point math by 32.2% (88035 vs 66579). Integer math goes to the 12700K at 114264 versus 92589, a 23.4% margin. Random string sorting favors the desktop chip by 38% (45805 vs 33188), and multithread performance shows a 29.6% gap (34404 vs 26545). The single-thread PassMark test also goes to the 12700K, with 4013 against 3543, a 13.3% lead.

However, the 13800H does claim three wins, and one is particularly notable. In Cinebench R23 singlecore, the mobile chip scores 2591 against the 12700K’s 1850.5, a 28.6% advantage. This is the largest single-core delta in either direction, showing that the newer Raptor Lake architecture, despite its lower 45W TDP, delivers superior single-thread performance in this specific benchmark. The 13800H also wins PassMark physics with 1924 versus 1790, a 7% lead, and PassMark find prime numbers with 115 against 114, a razor-thin 0.9% margin. The Cinebench R23 multicore test is closer than the older R15 and R20 versions, with the 12700K winning 19784 to 18358, a 7.8% lead.

Architecture Differences

The two CPUs share Intel’s hybrid design philosophy but differ in generation and physical characteristics. The 12700K is built on Alder Lake-S architecture with a 10 nm process node, while the 13800H uses Raptor Lake-H, also on a 10 nm node. The desktop chip has 12 cores and 20 threads, whereas the mobile part packs 14 cores but also 20 threads, indicating a different core composition. The 12700K’s die size is 215 mm², while the 13800H’s is larger at 257 mm².

Cache configurations show a notable divergence. Both have 80 KB of L1 cache per core, but the 12700K offers 1.25 MB of L2 per core versus the 13800H’s 2 MB per core. The shared L3 cache favors the desktop chip slightly, with 25 MB against the mobile part’s 24 MB. These differences suggest the 13800H prioritizes per-core cache for its hybrid layout, while the 12700K allocates more aggregate L3 for its desktop workload profile.

Memory support is identical in type—both support DDR4 and DDR5 with dual-channel buses—but the PCIe capabilities differ significantly. The 12700K provides Gen 4 with 20 lanes from the CPU, while the 13800H offers Gen 5 with only 8 lanes. This reflects the desktop’s need for more expansion bandwidth versus the mobile chip’s focus on integrated connectivity. Integrated graphics also differ: the 12700K uses UHD Graphics 770, while the 13800H features Iris Xe Graphics 96EU, a more capable iGPU for laptop use. The 12700K has an unlocked multiplier, while the 13800H is locked, and their sockets are incompatible—Socket 1700 for the desktop, BGA 1744 for the mobile.

Where Each One Wins

The 12700K is the clear winner for sustained multi-threaded workloads and compute-intensive tasks. Its 79.7% lead in Cinebench R15 multicore and 58.6% in Cinebench R20 multicore make it the superior choice for video rendering, 3D modeling, and other applications that scale across cores. PassMark data compression and encryption tests show advantages of 49.3% and 32.1% respectively, indicating faster file archiving and secure data handling. Floating-point and integer math scores are 32.2% and 23.4% higher, favoring scientific computing and general number crunching. The 29.6% multithread lead and 38% random string sorting advantage further cement its position for heavy multitasking and database operations.

The 13800H wins in specific single-thread and physics scenarios. Its 28.6% Cinebench R23 singlecore advantage suggests better performance in lightly threaded applications like older games or legacy software, where a single core’s efficiency matters most. The 7% lead in PassMark physics indicates stronger performance in physics simulation, which often relies on a mix of single-thread and multi-thread execution. The 0.9% win in find prime numbers is negligible but shows parity in certain integer workloads. However, the 13800H’s wins are fewer and smaller in magnitude, making it a niche performer rather than an overall winner.

The Verdict

The data points to a straightforward conclusion: the Intel Core i7-12700K is the superior processor for users who prioritize raw performance, particularly in multi-threaded tasks. It wins 14 of 17 head-to-head tests, with decisive margins in Cinebench R15 and R20 multicore, PassMark data compression, and extended instructions. Its average benchmark score of 35287 is higher than the 13800H’s 34988, and both sit at the 84th percentile. The desktop chip’s nearest rivals include the Intel Core i5-13600T and i7-12700KF, with deltas of -0.1% and -0.2%, showing it competes closely with other desktop parts. The 12700K also holds a slight edge over the 13800H’s nearest rival, the Intel Core i9-12900HX, which scores 35003 with a 0% delta.

For mobile users or those in constrained environments, the 13800H offers a compelling counterpoint. Its 45W TDP versus the 12700K’s 125W makes it far more power-efficient, and its 28.6% single-core win in Cinebench R23 shows that newer architecture can outperform older designs in specific tests. The mobile chip’s closest rivals include the Intel Core 7 253PTE and Intel Xeon 6349P, with deltas of 0.1% and 0.3%, indicating it holds its own in the mobile segment. However, the 13800H’s wins are too few and too narrow to recommend it over the 12700K for desktop replacement tasks. The 12700K is the pick for desktop builders and content creators; the 13800H suits laptop buyers needing strong single-core performance in a power-constrained package.

FAQ

Q: Which processor wins more head-to-head benchmarks?

A: The Intel Core i7-12700K wins 14 of the 17 head-to-head tests, while the Intel Core i7-13800H wins only 3.

Q: What is the largest performance gap between the two CPUs?

A: The largest gap is in Cinebench R15 multicore, where the 12700K scores 3325 against the 13800H’s 1850, a 79.7% difference.

Q: In which benchmark does the 13800H have its biggest advantage?

A: The 13800H’s biggest win is in Cinebench R23 singlecore, where it scores 2591 versus the 12700K’s 1850.5, a 28.6% lead.

Q: How do their average benchmark scores compare?

A: The 12700K has an average benchmark score of 35287, while the 13800H scores 34988. Both are at the 84th percentile of all CPUs.

Q: What are the core and thread counts for each processor?

A: The 12700K has 12 cores and 20 threads, while the 13800H has 14 cores and also 20 threads.

Q: Which CPU has a higher boost clock?

A: The 13800H has a higher boost clock at 5.20 GHz, compared to the 12700K’s 5.00 GHz.