Intel Core i9-13900KF vs Intel Core Ultra 7 270HX Plus Comparison

The Intel Core i9-13900KF and Intel Core Ultra 7 270HX Plus are near-perfect statistical twins in the aggregate, with average benchmark scores of 61,841 and 61,834, respectively—a delta of 0%. Both sit at the 93rd percentile of all CPUs. Yet their underlying designs produce starkly different performance profiles. The 13900KF is a 24-core, 32-thread desktop powerhouse built on Intel 10nm, while the 270HX Plus is a 20-core, 20-thread mobile part on TSMC 3nm. The data shows a clear split: the desktop chip dominates heavily threaded integer workloads and compression, while the mobile chip wins in physics simulation, prime-number finding, and single-threaded PassMark tests. This is not a simple "which is faster" comparison; it is a study in architectural philosophy.

Where Each One Wins

The Intel Core i9-13900KF is the undisputed champion of throughput-oriented tasks. It wins 12 of the 17 head-to-head benchmarks, and its victories are often lopsided. In integer math, it scores 206,859 against the 270HX Plus’s 122,449—a 68.9% advantage. Data compression is similarly dominant, with 786,218 versus 493,179 (59.4% ahead). Random string sorting shows a 44.1% lead (86,510 vs 60,020). These are workloads that scale with raw core count and thread count, and the 13900KF’s 32 threads simply overwhelm the 270HX Plus’s 20. The desktop chip also sweeps every Cinebench iteration, from R15 to R23, with a consistent 16.6% edge in both single-core and multi-core variants. Its multi-threaded PassMark score of 57,729 beats the mobile part’s 48,270 by 19.6%.

The Intel Core Ultra 7 270HX Plus, despite losing the overall count, wins the workloads that reward modern efficiency and specific instruction-level strengths. It takes PassMark single-thread with 4,764 versus 4,584 (3.8% ahead). More dramatically, it dominates the find-prime-numbers test with 482 versus 225—a 53.3% margin in its favor. That is not a small gap; it is a fundamental difference in how the two chips handle iterative integer loops. The 270HX Plus also wins physics simulation (3,843 vs 2,956, a 23.1% lead) and floating-point math (163,567 vs 150,869, 7.8% ahead). For users running scientific simulations, physics engines, or single-threaded legacy code, the mobile chip is the better performer despite its far lower 55W TDP.

Architecture Differences

The two processors represent opposite ends of Intel’s design spectrum. The 13900KF is built on Raptor Lake-S, using a 10nm process from Intel’s own foundry. Its die is 257 mm². The 270HX Plus is Arrow Lake-HX Refresh, fabricated on a 3nm node by TSMC, with a slightly smaller die at 243 mm² but a far larger transistor count: 17,800 million versus no comparable figure for the 13900KF. The node difference is critical—3nm is a generation ahead of 10nm in density and power efficiency, which explains how the 270HX Plus achieves competitive scores at 55W TDP versus 125W.

Core configurations diverge sharply. The 13900KF offers 24 cores and 32 threads, implying a hybrid mix of performance and efficiency cores with hyper-threading. The 270HX Plus has 20 cores and 20 threads—no hyper-threading—which is a deliberate choice to reduce power and die complexity. Cache hierarchies also differ. The 13900KF allocates 80KB L1 per core, 2MB L2 per core, and 36MB shared L3. The 270HX Plus has larger per-core caches: 192KB L1 and 3MB L2, but a smaller 30MB L3 pool. The larger L1/L2 on the mobile part likely fuels its wins in latency-sensitive single-threaded and physics workloads, while the 13900KF’s bigger L3 helps in data-heavy multi-threaded tasks.

Memory and platform positioning differ as well. The 13900KF supports both DDR4 and DDR5, while the 270HX Plus is DDR5-only. The 270HX Plus does list a memory bandwidth of 102.4 GB/s, a figure absent for the 13900KF. ECC memory is supported on the desktop chip but not on the mobile one. The 270HX Plus also integrates Arc Xe-LPG Graphics 64EU, whereas the 13900KF has no integrated graphics—the "F" suffix confirms that. Both use PCIe Gen 5 with 20 CPU lanes, but the 13900KF is on Socket 1700 (desktop), and the 270HX Plus is on BGA 2114 (mobile, soldered).

Head-to-Head Benchmarks

The Cinebench suite is a total sweep for the 13900KF, and the deltas are remarkably uniform. In Cinebench R15 multi-core, it scores 4,924 against 4,224 (16.6% ahead). Single-core R15 is 695 versus 596, also 16.6%. R20 multi-core shows 20,519 versus 17,603 (16.6%), and R20 single-core is 2,896 versus 2,485 (16.5%). R23 multi-core delivers 48,855 versus 41,913 (16.6%), with single-core at 6,897 versus 5,917 (16.6%). The consistency across every version suggests a straightforward clock and thread advantage—the 13900KF boosts to 5.80 GHz versus 5.30 GHz, and its 32 threads outnumber the 270HX Plus’s 20.

PassMark tells a more nuanced story. The 13900KF’s biggest win is integer math at 68.9% (206,859 vs 122,449), followed by data compression at 59.4% (786,218 vs 493,179). Random string sorting shows a 44.1% lead (86,510 vs 60,020). Data encryption is 22.1% ahead (46,186 vs 37,813), and extended instructions are 17.3% ahead (46,084 vs 39,283). Multi-threaded PassMark is 19.6% in favor of the 13900KF (57,729 vs 48,270). These are all workloads where the desktop chip’s 12 extra threads and higher power budget translate directly into more work completed.

The 270HX Plus’s wins are fewer but revealing. The find-prime-numbers test is its largest victory: 482 versus 225, a 53.3% margin. This is not a close call; the mobile chip is more than twice as efficient at this specific task. Physics simulation goes to the 270HX Plus at 3,843 versus 2,956 (23.1% ahead). Floating-point math favors the mobile part at 163,567 versus 150,869 (7.8%). Single-threaded PassMark sees the 270HX Plus edge ahead at 4,764 versus 4,584 (3.8%). The pattern suggests the 270HX Plus’s newer 3nm process and larger per-core caches allow it to execute certain instruction patterns with far greater efficiency, despite lower clock speeds.

Specification Differences

The core and thread counts are the most visible split: 24 cores/32 threads for the 13900KF versus 20 cores/20 threads for the 270HX Plus. Base clocks differ at 3.00 GHz versus 2.40 GHz, and boost clocks at 5.80 GHz versus 5.30 GHz. TDP is a major differentiator—125W for the desktop chip versus 55W for the mobile part. The process node is 10nm (Intel) versus 3nm (TSMC). The 13900KF reports a die size of 257 mm², while the 270HX Plus is 243 mm² but carries 17,800 million transistors; the 13900KF has no transistor count listed.

Cache configurations differ in every tier. L1 is 80 KB per core versus 192 KB per core. L2 is 2 MB per core versus 3 MB per core. L3 is 36 MB shared versus 30 MB shared. Memory support is DDR4/DDR5 for the 13900KF and DDR5-only for the 270HX Plus. The 270HX Plus lists 102.4 GB/s memory bandwidth; the 13900KF does not. ECC memory is available on the 13900KF but not the 270HX Plus. The 270HX Plus has integrated Arc Xe-LPG Graphics 64EU; the 13900KF has none. Sockets are Intel Socket 1700 versus Intel BGA 2114. Release dates are 2022-09-26 for the 13900KF and 2026-03-16 for the 270HX Plus. The 13900KF has a launch MSRP of $564; the 270HX Plus has none listed. Both have unlocked multipliers and active production status.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i9-13900KF has 24 cores and 32 threads. The Intel Core Ultra 7 270HX Plus has 20 cores and 20 threads. The desktop chip also boosts higher at 5.80 GHz versus 5.30 GHz.

Q: What is the biggest performance gap between the two?

A: The largest delta is in PassMark integer math, where the 13900KF scores 206,859 against the 270HX Plus’s 122,449—a 68.9% advantage. The biggest win for the 270HX Plus is in find-prime-numbers, where it scores 482 versus 225, a 53.3% margin.

Q: How do they compare in Cinebench R23?

A: The 13900KF wins both. In multi-core, it scores 48,855 versus 41,913 (16.6% ahead). In single-core, it scores 6,897 versus 5,917 (16.6% ahead). The 13900KF wins every Cinebench version by a near-identical 16.6% margin.

Q: Which processor is better for single-threaded workloads?

A: It depends on the benchmark. The 270HX Plus wins PassMark single-thread with 4,764 versus 4,584 (3.8% ahead). However, the 13900KF wins Cinebench R23 single-core with 6,897 versus 5,917 (16.6% ahead). The data shows a split based on the test methodology.

Q: Do they use different manufacturing processes?

A: Yes. The 13900KF uses Intel’s 10nm process with a die size of 257 mm². The 270HX Plus uses TSMC’s 3nm process with a die size of 243 mm² and 17,800 million transistors.

Q: What are the power consumption differences?

A: The 13900KF has a TDP of 125W, while the 270HX Plus has a TDP of 55W. Despite this 70W difference, the 270HX Plus still wins 5 of the 17 head-to-head benchmarks, including physics and floating-point math.