Intel Core 7 253PQE vs Intel Core Ultra 7 356H Comparison

The Verdict

The benchmark data splits this comparison cleanly along performance and platform lines. The Intel Core 7 253PQE wins 15 of 17 head-to-head tests, with an average benchmark score of 55919 against 41215 for the Intel Core Ultra 7 356H. The 253PQE sits at the 91st percentile of all CPUs in the database, while the 356H sits at the 87th percentile. Its closest rivals are the Intel Core i9-14900HX, AMD Ryzen AI Max 390, and AMD Ryzen AI 9 HX PRO 470, all within 1.1% of its average score. The 356H, by contrast, trades blows with the AMD Ryzen AI 5 PRO 440 and Intel Core Ultra 7 366H, with deltas of 0% and -0.1% respectively.

The 253PQE is the pick for desktop workloads where sustained multi-threaded performance and high boost clocks matter. The 356H is the pick for mobile systems where the 25 W TDP and integrated Intel Xe3 Graphics define the platform. The data does not suggest one is a substitute for the other; it suggests two different design targets. The 253PQE is a desktop part on Intel Socket 1700, while the 356H is a mobile part on Intel BGA 2540. The 253PQE carries a launch MSRP of $409. The 356H has no recorded launch MSRP.

Where Each One Wins

The Core 7 253PQE dominates the Cinebench suite. In Cinebench R23 multi-core it scores 31390 against 18395 for the 356H, a 70.6% advantage. In Cinebench R23 single-core the gap widens to 117.2%, with scores of 4431 and 2040. Cinebench R20 multi-core shows a smaller but still clear 8.5% lead, and Cinebench R15 multi-core shows a 3.5% lead. The 253PQE also wins PassMark integer math by 65.8%, data compression by 45%, random string sorting by 32.3%, and multithread by 22.6%. These are the workloads that scale with core count, thread count, and clock speed.

The Core Ultra 7 356H wins exactly two tests. PassMark data encryption goes to the 356H, 26345 against 25515, a 3.2% edge. PassMark find prime numbers goes to the 356H by a larger margin, 327 against 206, a 37% advantage. Those wins indicate specialized instruction paths or memory behavior that favor the newer Panther Lake architecture. The 356H also stays competitive in floating point math, losing by only 2.1%, and physics, losing by 2.6%. In data encryption, the 356H outperforms despite having a lower average score overall. In prime number finding, the 356H is decisively ahead.

The 253PQE takes PassMark single-thread by 7.8%, a smaller margin than the Cinebench R23 single-core result. The Cinebench R23 single-core delta of 117.2% is the largest single win in either direction across the entire head-to-head set. The 356H has no test where it leads by a comparable amount.

Architecture Differences

The two processors come from different Intel process nodes and design families. The Core 7 253PQE is built on a 10 nm process under the Bartlett Lake codename, part of the Core 7 (Bartlett Lake) generation. The Core Ultra 7 356H uses a 3 nm process under the Panther Lake codename, with the architecture listed as Panther Lake and the generation listed as Ultra 7 (Panther Lake-H). Both are fabricated by Intel, but the process node difference is substantial: 10 nm versus 3 nm.

Core and thread counts move in opposite directions. The 253PQE has 10 cores and 20 threads, relying on simultaneous multithreading to reach its thread count. The 356H has 16 cores and 16 threads, meaning no multithreading overhead per core. The 356H has more physical cores, yet the 253PQE still wins most multi-threaded tests. The 253PQE compensates with a base clock of 3.50 GHz and a boost clock of 5.70 GHz. The 356H runs at 1.90 GHz base and 4.70 GHz boost. Clock speed, core count, and thread count interact here: the 253PQE uses higher clocks with fewer cores and more threads, while the 356H uses more cores with lower clocks and no SMT.

Cache layouts differ significantly. The 253PQE has 80 KB L1 per core, 2 MB L2 per core, and 33 MB shared L3. The 356H has 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3. The 356H has larger per-core L1 and L2 allocations, while the 253PQE has nearly double the shared L3. Memory support also diverges: the 253PQE supports DDR4 and DDR5 with dual-channel memory and 89.6 GB/s bandwidth, plus ECC memory support. The 356H supports DDR5 and LPDDR5X with dual-channel memory and 115.2 GB/s bandwidth, but no ECC. The 356H has higher memory bandwidth, which helps explain its encryption and prime number results.

PCIe lanes and integrated graphics differ as well. The 253PQE provides Gen 5 with 16 lanes (CPU only) and uses UHD Graphics 770. The 356H provides Gen 5 with 12 lanes (CPU only) and uses Intel Xe3 Graphics. The 253PQE targets the desktop market segment, while the 356H targets mobile. The 253PQE has a TDP of 125 W; the 356H has a TDP of 25 W. The 356H has a later release date, 2026-01-04, compared to 2026-03-08 for the 253PQE. Both parts are listed as Active in production status, and neither has an unlocked multiplier.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The Intel Core 7 253PQE. It leads Cinebench R23 multi-core by 70.6%, Cinebench R20 multi-core by 8.5%, and PassMark multithread by 22.6%.

Q: Does the Core Ultra 7 356H win any benchmarks?

A: Yes. It wins PassMark data encryption by 3.2% and PassMark find prime numbers by 37%.

Q: Why does the 356H have more cores but lose multi-core tests?

A: The 356H has 16 cores and 16 threads, but its base clock is 1.90 GHz and boost clock is 4.70 GHz. The 253PQE has 10 cores and 20 threads with a 3.50 GHz base clock and 5.70 GHz boost clock. Higher clocks and simultaneous multithreading give the 253PQE the edge in most multi-threaded tests.

Q: What are the TDP differences?

A: The 253PQE has a TDP of 125 W. The 356H has a TDP of 25 W. The 356H targets mobile systems with much lower power draw.

Q: Which processor has more L3 cache?

A: The 253PQE has 33 MB of shared L3 cache. The 356H has 18 MB of shared L3 cache.

Q: Do they use the same socket?

A: No. The 253PQE uses Intel Socket 1700, and the 356H uses Intel BGA 2540.

Head-to-Head Benchmarks

The largest win for the Core 7 253PQE comes in Cinebench R23 single-core, where it scores 4431 against 2040 for the 356H, a 117.2% delta. That is more than double the score. Cinebench R23 multi-core shows a 70.6% lead, with 31390 against 18395. PassMark integer math goes 137795 to 83111, a 65.8% advantage for the 253PQE. PassMark data compression shows 487335 against 336177, a 45% lead. PassMark random string sorting goes 54222 to 40990, a 32.3% delta. PassMark multithread shows 41656 against 33978, a 22.6% lead. PassMark extended instructions go 32390 to 27898, a 16.1% edge.

Smaller but consistent wins for the 253PQE appear across Cinebench R20 and PassMark single-thread tests. Cinebench R20 multi-core shows 13183 against 12153, an 8.5% delta. Cinebench R20 single-core shows 1861 against 1715, also 8.5%. PassMark single-thread goes 4389 to 4072, a 7.8% lead. Cinebench R15 multi-core shows 3163 against 3055, a 3.5% edge. PassMark floating point math goes 105279 to 103128, a 2.1% delta. PassMark physics shows 2970 against 2895, a 2.6% lead. Cinebench R15 single-core shows 446 against 303, a 47.2% delta, the second-largest relative win for the 253PQE.

The Core Ultra 7 356H claims its wins in PassMark data encryption and PassMark find prime numbers. Data encryption scores 26345 against 25515, a 3.2% delta. Find prime numbers scores 327 against 206, a 37% delta. Those two wins do not offset the overall average score gap, but they show specific strengths. The 356H also comes close in floating point math, losing by only 2.1%, and physics, losing by 2.6%. In data compression, the 253PQE leads by 45%, a much larger spread than in floating point or physics.

The average benchmark scores tell the same story as the head-to-head results. The 253PQE averages 55919, while the 356H averages 41215. The 253PQE's nearest rivals are all within 1.1% of its average: the Intel Core i9-14900HX at -0.2%, the AMD Ryzen AI Max 390 at -0.6%, the AMD Ryzen AI 9 HX PRO 470 at -0.7%, and the AMD Ryzen Threadripper PRO 3955WX at -1.1%. The 356H's nearest rivals cluster differently: the AMD Ryzen AI 5 PRO 440 at 0%, the Intel Core Ultra 7 366H at -0.1%, the AMD Ryzen 9 5900X at -0.4%, and the Intel Core Ultra X7 358H at 0.6%. The 253PQE competes with high-end desktop and workstation parts, while the 356H competes with mid-range mobile and desktop parts from the previous generation.

The recorded data supports a simple conclusion: the 253PQE is the higher-performance processor in almost every measured category, while the 356H offers a specific set of wins in encryption and prime number finding, along with a dramatically lower TDP and a newer process node. The 356H's 3 nm process, 16 physical cores, and higher memory bandwidth make it a distinct design, but the benchmark results favor the 253PQE in raw throughput.