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

Head-to-Head Benchmarks

The recorded head-to-head data shows a decisive overall advantage for the Intel Core Ultra 7 356H, which wins 14 of the 17 benchmark comparisons. The Intel Core 7 253PTE wins three tests, but the margin and nature of those wins contrast sharply with the Ultra 7's broader lead.

The largest single victory for the Core Ultra 7 356H comes in PassMark's find prime numbers test, where it scores 327 against the Core 7 253PTE's 82, a delta of 74.9%. This is a workload that heavily favors the Ultra 7's architecture. Similarly, in PassMark physics, the Ultra 7 posts 2895 versus 1318, a 54.5% advantage. These two results indicate a substantial difference in raw computational throughput for specific instruction patterns.

In Cinebench R15 multicore, the Ultra 7 scores 3055 against 2144, a 29.8% lead. The R20 multicore test shows a 26.5% gap (12153 vs 8935). The R20 single-core test also favors the Ultra 7 by 26.5% (1715 vs 1261). PassMark multithread shows the Ultra 7 at 33978 versus 25031, a 26.3% edge. Data compression follows with the Ultra 7 at 336177 versus 275828, an 18% gap. Encryption shows a 41.2% lead for the Ultra 7 (26345 vs 15500). Extended instructions favor the Ultra 7 by 38.7% (27898 vs 17099). Floating point math shows a 34.8% advantage (103128 vs 67209). Random string sorting favors the Ultra 7 by 31.1% (40990 vs 28227). Even single-thread PassMark shows the Ultra 7 ahead by 6.8% (4072 vs 3794).

The Intel Core 7 253PTE takes its wins in three distinct areas. The most dramatic is Cinebench R23 single-core, where it scores 3003 against the Ultra 7's 2040, a 47.2% lead. This is a massive single-thread advantage. In Cinebench R23 multicore, the Core 7 wins with 21276 versus 18395, a 15.7% margin. The third win is PassMark integer math, where the Core 7 scores 119552 against 83111, a 43.8% advantage.

The Cinebench R15 single-core test is nearly a tie, with the Ultra 7 winning by just 0.3% (303 vs 302). The overall average benchmark score confirms the Ultra 7's position: 41215 for the Ultra 7 versus 34962 for the Core 7. The Core 7 sits at the 84th percentile of all CPUs, while the Ultra 7 sits at the 87th percentile.

Architecture Differences

The two processors are built on fundamentally different platforms. The Intel Core 7 253PTE is a desktop part using the Bartlett Lake codename and Intel Socket 1700. It is manufactured on a 10 nm process at Intel. The Intel Core Ultra 7 356H is a mobile processor using the Panther Lake architecture, codename Panther Lake, on Intel BGA 2540. It is manufactured on a 3 nm process, also at Intel.

The core configurations differ significantly. The Core 7 has 10 cores and 20 threads, indicating hyperthreading support. The Ultra 7 has 16 cores and 16 threads, meaning it does not use hyperthreading. The base clock for the Core 7 is 1.80 GHz with a boost clock of 5.40 GHz. The Ultra 7 has a base clock of 1.90 GHz and a boost of 4.70 GHz. The Core 7 has a TDP of 45 watts, while the Ultra 7 has a TDP of 25 watts. This TDP difference matters for thermal and power delivery in their respective market segments.

Cache hierarchies are also distinct. The Core 7 has 80 KB of L1 cache per core, 2 MB of L2 per core, and 33 MB of shared L3 cache. The Ultra 7 has 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3 cache. The larger per-core L1 and L2 on the Ultra 7 suggest a different design philosophy for feeding the cores, while the Core 7's larger L3 pool benefits shared data access.

Memory support diverges. The Core 7 supports DDR4 and DDR5 with a dual-channel bus, delivering 89.6 GB/s of memory bandwidth. It also supports ECC memory. The Ultra 7 supports DDR5 and LPDDR5X with a dual-channel bus, delivering 115.2 GB/s. It does not support ECC memory. The higher bandwidth on the Ultra 7 is notable, especially for mobile workloads where LPDDR5X is common.

PCIe connectivity differs: the Core 7 provides Gen 5 with 16 lanes (CPU only), while the Ultra 7 provides Gen 5 with 12 lanes (CPU only). Integrated graphics also differ, with the Core 7 using UHD Graphics 730 and the Ultra 7 using Intel Xe3 Graphics. The release dates in the database show the Core 7 with a date of 2026-03-08 and the Ultra 7 with a date of 2026-01-04. The Core 7 has a launch MSRP of $384. The Ultra 7 has no launch MSRP recorded. Neither processor has an unlocked multiplier.

FAQ

Q: Which processor has the higher multi-core performance in Cinebench R23?

A: The Intel Core 7 253PTE wins in Cinebench R23 multicore with a score of 21276, which is 15.7% ahead of the Intel Core Ultra 7 356H's 18395.

Q: How large is the single-thread advantage for the Intel Core 7 253PTE?

A: In Cinebench R23 single-core, the Core 7 scores 3003 versus the Ultra 7's 2040, a 47.2% lead. In PassMark single-thread, however, the Ultra 7 wins by 6.8% with 4072 versus 3794.

Q: What explains the Intel Core Ultra 7 356H's strong showing in prime number finding?

A: The Ultra 7 scores 327 in PassMark find prime numbers versus the Core 7's 82, a 74.9% delta. The recorded data attributes this to the Ultra 7's architecture, which uses a 3 nm process and 16 cores with 192 KB of L1 cache per core.

Q: Does the Intel Core 7 253PTE support ECC memory?

A: Yes, the database lists ECC memory support as true for the Core 7. The Intel Core Ultra 7 356H does not support ECC memory.

Q: Which processor has the higher memory bandwidth rating?

A: The Intel Core Ultra 7 356H has a memory bandwidth of 115.2 GB/s, while the Intel Core 7 253PTE has 89.6 GB/s. Both use a dual-channel memory bus.

Q: How do the two processors compare in overall average benchmark score?

A: The Intel Core Ultra 7 356H has an average benchmark score of 41215, compared to 34962 for the Intel Core 7 253PTE. The Ultra 7 sits at the 87th percentile of all CPUs, while the Core 7 sits at the 84th.

Specification Differences

The two processors differ across nearly every major specification. The Core 7 253PTE uses 10 cores and 20 threads, while the Ultra 7 356H uses 16 cores and 16 threads. Base clocks are 1.80 GHz versus 1.90 GHz, and boost clocks are 5.40 GHz versus 4.70 GHz. TDP is 45 watts versus 25 watts. The socket changes from Intel Socket 1700 to Intel BGA 2540. The process node moves from 10 nm to 3 nm. The codename changes from Bartlett Lake to Panther Lake.

Cache configurations differ: L1 per core is 80 KB versus 192 KB, L2 per core is 2 MB versus 2.5 MB, and shared L3 is 33 MB versus 18 MB. Memory support changes from DDR4, DDR5 to DDR5, LPDDR5X. Memory bandwidth is 89.6 GB/s versus 115.2 GB/s. ECC support is present on the Core 7 but absent on the Ultra 7. PCIe lanes are 16 versus 12, both Gen 5. Integrated graphics change from UHD Graphics 730 to Intel Xe3 Graphics. The market segment shifts from Desktop to Mobile. Launch MSRP is $384 for the Core 7, with no recorded MSRP for the Ultra 7. Release dates differ, with the Ultra 7 appearing earlier in the database.

Where Each One Wins

The Intel Core Ultra 7 356H is the dominant processor across most measured workloads. It wins in Cinebench R15 and R20 multicore tests, Cinebench R15 and R20 single-core tests, and all but one of the PassMark tests in the head-to-head set. Its victories in PassMark physics (54.5% lead), find prime numbers (74.9% lead), and extended instructions (38.7% lead) indicate that its 16-core, 3 nm architecture handles compute-heavy and specialized instruction workloads with significant efficiency. The Ultra 7 also wins in data compression, encryption, floating point math, multithread, random string sorting, and single-thread PassMark. Its higher memory bandwidth of 115.2 GB/s likely contributes to its wins in memory-intensive tasks like data compression and random string sorting. The data shows the Ultra 7 as the better choice for general productivity, scientific computing, and workloads that benefit from many cores and high memory throughput.

The Intel Core 7 253PTE wins in three specific areas. Its Cinebench R23 single-core score of 3003, a 47.2% lead over the Ultra 7, indicates that its 5.40 GHz boost clock delivers exceptional performance for single-threaded applications that rely on high clock speed. The Core 7 also wins Cinebench R23 multicore by 15.7%, which is notable given that the Ultra 7 wins the older R15 and R20 multicore tests. This suggests the Core 7's 20 threads and 33 MB of L3 cache give it an advantage in newer render workloads that scale with thread count and cache. The Core 7's PassMark integer math win (43.8% lead) points to strong performance in integer-heavy calculations. For users prioritizing single-thread responsiveness or specific integer workloads, the Core 7 has a clear edge. Its ECC memory support and desktop socket also position it for workstation-adjacent use cases where those features matter.