Intel Core i7-13700K vs Intel Core Ultra 5 235 Comparison

The Intel Core Ultra 5 235 and Intel Core i7-13700K represent two distinct generations of Intel desktop design, and the benchmark data reveals a clear performance hierarchy. The i7-13700K wins 13 of the 17 head-to-head comparisons, while the Ultra 5 235 takes 4 wins. However, the margin of victory tells a more nuanced story than the raw win count suggests. The i7-13700K dominates in heavily multithreaded workloads, often by enormous margins, while the Ultra 5 235 counters with wins in specific math and single-thread tests. The average benchmark scores place the i7-13700K at 46881 versus 46062 for the Ultra 5 235, a modest overall gap of about 1.8%, but the distribution of those scores is heavily skewed. Both processors sit at the 89th percentile among all CPUs, indicating they are close in overall standing, yet their architectures produce very different performance profiles. The data suggests these are not interchangeable parts; the i7-13700K is the brute-force choice for parallel workloads, while the Ultra 5 235 is a more efficient, forward-looking design that wins in specific niches.

The Verdict

The benchmark results point to a clear split in suitability. The Intel Core i7-13700K is the definitive pick for users whose primary workloads scale with core count and threads. Its Cinebench R23 multicore score of 30745 is more than double the Ultra 5 235's 14769, a 52% advantage, and the R20 multicore gap is even larger at 61.9%. For video rendering, software compilation, or any heavily threaded task, the i7-13700K is the data-backed choice. It also wins the PassMark multithread test with 45887 versus 37816, a 17.6% lead, and integer math by a massive 43.1% (154446 vs 87948). The i7-13700K's 24 threads versus 14 give it a structural advantage that its older architecture capitalizes on.

The Intel Core Ultra 5 235 is the pick for workloads that favor its newer architecture and specific instruction handling. It wins the PassMark find prime numbers test by a staggering 94.2% (371 vs 191), suggesting a fundamental efficiency in that particular calculation. It also edges out the i7-13700K in floating-point math (117951 vs 114867, a 2.7% lead) and in the PassMark single-thread test (4516 vs 4333, a 4.2% lead). For users running a mix of general productivity, single-threaded applications, and light floating-point work, the Ultra 5 235 is the more modern choice, though its overall multicore deficit makes it a poor fit for heavy rendering. The data does not support recommending the Ultra 5 235 for any scenario where the i7-13700K's multithread dominance is relevant.

Architecture Differences

The two processors are built on fundamentally different foundations. The Core Ultra 5 235 uses the Arrow Lake architecture on a 3 nm process node from TSMC, while the Core i7-13700K uses the Raptor Lake architecture on a 10 nm process from Intel. This process node difference is significant, as the 3 nm node allows for higher transistor density, with the Ultra 5 235 packing 17,800 million transistors on a 243 mm² die, whereas the i7-13700K's die size is 257 mm² with no transistor count listed. The core configurations also diverge sharply: the Ultra 5 235 has 14 cores and 14 threads, meaning no hyperthreading, while the i7-13700K has 16 cores and 24 threads, indicating 8 performance cores with hyperthreading and 8 efficiency cores. The cache hierarchy differs as well, with the Ultra 5 235 having 192 KB of L1 and 3 MB of L2 per core, versus 80 KB and 2 MB per core for the i7-13700K, but the i7-13700K has a larger shared L3 cache at 30 MB versus 24 MB.

Memory support is another key differentiator. The Ultra 5 235 supports only DDR5 with a dual-channel bus and a listed bandwidth of 102.4 GB/s, while the i7-13700K supports both DDR4 and DDR5 on a dual-channel bus, with no bandwidth figure given. The i7-13700K also supports ECC memory, which the Ultra 5 235 does not. Both use the same PCIe Gen 5 with 20 lanes from the CPU, but they are on different sockets: the Ultra 5 235 uses Intel Socket 1851, while the i7-13700K uses Intel Socket 1700. The integrated graphics differ, with the Ultra 5 235 featuring Arc Xe-LPG Graphics 24EU versus the UHD Graphics 770 on the i7-13700K. The Ultra 5 235 has a locked multiplier, while the i7-13700K is unlocked for overclocking, and the TDP figures reflect this: 65 watts for the Ultra 5 235 versus 125 watts for the i7-13700K.

Head-to-Head Benchmarks

The i7-13700K's dominance in multicore tests is the headline story. In Cinebench R15 multicore, it scores 4507.5 against the Ultra 5 235's 1488, a 67% difference. The R20 multicore test shows 16292 versus 6202, also a 61.9% gap. The R23 multicore result is slightly closer at 30745 versus 14769, a 52% delta, but the conclusion is unchanged. In PassMark integer math, the i7-13700K wins with 154446 against 87948, a 43.1% lead, and in data compression it scores 595292 versus 390711, a 34.4% advantage. The multithread test shows a 17.6% lead (45887 vs 37816), and random string sorting is 21.8% in favor of the i7-13700K (62670 vs 48980). Even in data encryption, the i7-13700K wins, though by a smaller 11.9% margin (33249 vs 29293).

The Ultra 5 235's wins are concentrated but notable. The find prime numbers test is its biggest victory, scoring 371 against the i7-13700K's 191, a 94.2% delta. This is a remarkable result, suggesting a specific instruction-level advantage. It also wins floating-point math with 117951 versus 114867, a modest 2.7% lead, and both PassMark single-thread tests show a 4.2% advantage (4516 vs 4333). The single-core Cinebench results are telling: in R23 single-core, the Ultra 5 235 scores 2085 versus 2116, a 1.5% loss, but in R15 and R20 single-core, the i7-13700K wins by 30.7% and 61.9% respectively. This inconsistency suggests the Ultra 5 235's single-thread performance is competitive in newer workloads but lags in older Cinebench versions.

FAQ

Q: Which processor is faster in Cinebench R23 multicore?

A: The Intel Core i7-13700K is significantly faster, scoring 30745 versus the Ultra 5 235's 14769, a 52% advantage.

Q: Does the Ultra 5 235 win any benchmark by a large margin?

A: Yes, it wins the PassMark find prime numbers test by 94.2%, scoring 371 versus the i7-13700K's 191.

Q: What is the single-thread performance difference?

A: The Ultra 5 235 leads in PassMark single-thread with 4516 versus 4333, a 4.2% advantage, but the i7-13700K wins Cinebench R23 single-core by 1.5% (2116 vs 2085).

Q: Which processor has more threads?

A: The i7-13700K has 24 threads versus 14 for the Ultra 5 235, which correlates with its multicore benchmark wins.

Q: How do the average benchmark scores compare?

A: The i7-13700K has an average score of 46881, while the Ultra 5 235 scores 46062, a difference of about 1.8%.

Q: Are both processors in the same performance percentile?

A: Yes, both are at the 89th percentile among all CPUs, despite their very different benchmark distributions.

Where Each One Wins

The i7-13700K wins in 13 of 17 benchmarks, and its victories are concentrated in areas that benefit from its 24 threads and higher boost clock of 5.40 GHz versus the Ultra 5 235's 5.00 GHz. The data shows it is the clear choice for Cinebench multicore workloads, with wins in R15, R20, and R23 by margins ranging from 52% to 67%. It also wins all four PassMark multithread-related tests: multithread (17.6% lead), integer math (43.1% lead), data compression (34.4% lead), and random string sorting (21.8% lead). For users running 3DMark tests, the i7-13700K has data from 16-thread, 8-thread, 4-thread, 2-thread, and max-thread tests, all of which it wins, while the Ultra 5 235 has no 3DMark scores listed. The i7-13700K is also the winner in data encryption (11.9% lead) and extended instructions (10.6% lead), making it the go-to for cryptographic workloads and instruction-heavy applications.

The Ultra 5 235's 4 wins are narrower but meaningful. Its 94.2% victory in find prime numbers is a specialized win, likely relevant for certain scientific computing or algorithmic tasks. The 2.7% lead in floating-point math suggests an advantage in workloads like simulations or physics calculations, though the margin is slim. The 4.2% lead in PassMark single-thread is the most generally applicable win, indicating that for lightly threaded applications like web browsing or office productivity, the Ultra 5 235 holds a slight edge. The data also shows the Ultra 5 235 wins the physics test in PassMark with 2570 versus 2716, but this is listed as a win for the i7-13700K in the head-to-head data, so the Ultra 5 235's confirmed wins are limited to find prime numbers, floating-point math, and the two single-thread entries.

Specification Differences

The key specification differences are stark and directly explain the benchmark results. The i7-13700K has 16 cores and 24 threads, while the Ultra 5 235 has 14 cores and 14 threads. The boost clock differs, with the i7-13700K reaching 5.40 GHz versus the Ultra 5 235's 5.00 GHz. The TDP is also different: 125 watts for the i7-13700K versus 65 watts for the Ultra 5 235. The process node is 10 nm for the i7-13700K and 3 nm for the Ultra 5 235, with the latter using a TSMC foundry versus Intel's own. The die size is 257 mm² for the i7-13700K and 243 mm² for the Ultra 5 235. Cache configurations differ per core, with the Ultra 5 235 having 192 KB L1 and 3 MB L2 versus 80 KB and 2 MB for the i7-13700K, but the shared L3 cache is 30 MB for the i7-13700K against 24 MB for the Ultra 5 235. Memory support is limited to DDR5 for the Ultra 5 235, while the i7-13700K supports both DDR4 and DDR5, and the i7-13700K offers ECC memory support that the Ultra 5 235 lacks. The sockets are incompatible: 1851 for the Ultra 5 235 and 1700 for the i7-13700K. The integrated graphics differ, with Arc Xe-LPG Graphics 24EU on the Ultra 5 235 versus UHD Graphics 770 on the i7-13700K. The multiplier is locked on the Ultra 5 235 and unlocked on the i7-13700K. The release dates are also distinct: 2025-01-06 for the Ultra 5 235 and 2022-09-26 for the i7-13700K, with the Ultra 5 235 having a launch MSRP of $257 and the i7-13700K at $409.