Intel Core 5 221TE vs Intel Core Ultra 7 356H Comparison

The Verdict

The benchmark data presents a decisive outcome: the Intel Core Ultra 7 356H wins all 17 recorded head-to-head tests against the Intel Core 5 221TE. The Core Ultra 7 356H delivers an average benchmark score of 41215, placing it in the 87th percentile of all CPUs, while the Core 5 221TE averages 17860 and sits in the 71st percentile. The performance gap is substantial across every workload category, with the smallest margin being a 21.8% advantage in Cinebench R23 single-core and the largest being an 82% lead in PassMark find prime numbers.

The Core 5 221TE remains a functional desktop processor for basic computing, but its nearest rivals include the AMD Ryzen 5 3600XT and Intel Core 5 120U, both with average scores within 0.2% of its own. The Core Ultra 7 356H, by contrast, competes with the AMD Ryzen AI 5 PRO 440 and Intel Core Ultra 7 366H, with score deltas of 0% and -0.1% respectively. The data indicates that the Core Ultra 7 356H is the appropriate choice for users who prioritize multi-threaded throughput, single-thread responsiveness, and data-heavy workloads. The Core 5 221TE does not offer any measured performance advantage, so its suitability rests on platform requirements such as Socket 1700 compatibility, ECC memory support, and desktop form factor needs.

FAQ

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

A: The Intel Core Ultra 7 356H leads decisively. In Cinebench R23 multi-core, it scores 18395 versus 11305 for the Core 5 221TE, a 38.5% advantage. The gap widens in Cinebench R20 multi-core, where the Core Ultra 7 356H scores 12153 against 4748, a 60.9% difference.

Q: How do the single-core scores compare?

A: The Core Ultra 7 356H wins every single-thread test. Cinebench R23 single-core shows 2040 versus 1596, a 21.8% lead. PassMark single-thread records 4072 versus 1734, a 57.4% difference. The Core Ultra 7 356H also holds a 47.2% advantage in Cinebench R15 single-core with 303 versus 160.

Q: Which processor handles data encryption and compression better?

A: The Core Ultra 7 356H dominates both. PassMark data compression scores 336177 versus 156682, a 53.4% lead. PassMark data encryption shows 26345 versus 8963, a 66% advantage. These results indicate the Core Ultra 7 356H processes data-centric tasks at roughly double the speed.

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

A: The Intel Core Ultra 7 356H has 16 cores and 16 threads. The Intel Core 5 221TE also has 16 threads but only 10 cores. Both processors lack hyper-threading on the Core Ultra 7 356H, while the Core 5 221TE uses 10 cores to reach 16 threads.

Q: Which processor has a higher boost clock?

A: The Intel Core 5 221TE has a higher boost clock at 5.00 GHz, compared to 4.70 GHz for the Core Ultra 7 356H. Despite this, the Core Ultra 7 356H still outperforms in all single-core benchmarks, indicating that architectural efficiency outweighs raw clock speed in the recorded data.

Q: Do both processors support ECC memory?

A: No. The Intel Core 5 221TE supports ECC memory, while the Intel Core Ultra 7 356H does not. This makes the Core 5 221TE suitable for error-tolerant computing environments, though its performance is significantly lower across the board.

Architecture Differences

The Intel Core 5 221TE uses the Bartlett Lake codename and belongs to the Core 5 (Bartlett Lake) generation. It is built on a 10 nm process node with a die size of 215 mm². Its cache hierarchy consists of 80 KB L1 per core, 1.25 MB L2 per core, and 24 MB shared L3. The integrated graphics are UHD Graphics 730.

The Intel Core Ultra 7 356H uses the Panther Lake codename and falls under the Core Ultra Series 3, specifically the Ultra 7 (Panther Lake-H) generation. It is built on a 3 nm process node, and the die size is not recorded in the database. Its cache configuration is larger per core: 192 KB L1 per core and 2.5 MB L2 per core, but the shared L3 is smaller at 18 MB. The integrated graphics are Intel Xe3 Graphics.

The process node difference is significant: 10 nm for the Core 5 221TE versus 3 nm for the Core Ultra 7 356H. This architectural gap explains part of the performance disparity, as the newer 3 nm process typically allows for higher transistor density and improved power efficiency. The Core Ultra 7 356H also uses a different core layout with 16 cores and 16 threads, whereas the Core 5 221TE uses 10 cores with 16 threads, implying hyper-threading on the desktop part.

Memory support diverges as well. The Core 5 221TE supports DDR4 and DDR5, while the Core Ultra 7 356H supports DDR5 and LPDDR5X. Both use a dual-channel memory bus, but the Core Ultra 7 356H has a higher memory bandwidth at 115.2 GB/s versus 76.8 GB/s for the Core 5 221TE. The Core 5 221TE supports ECC memory, a feature absent on the Core Ultra 7 356H.

PCIe connectivity also differs: the Core 5 221TE provides Gen 5 with 16 lanes (CPU only), while the Core Ultra 7 356H provides Gen 5 with 12 lanes (CPU only). The socket types are incompatible: Intel Socket 1700 for the Core 5 221TE and Intel BGA 2540 for the Core Ultra 7 356H, reflecting the desktop versus mobile market segmentation.

Specification Differences

The two processors differ in several key specifications as recorded in the database:

• Cores: Intel Core 5 221TE has 10 cores; Intel Core Ultra 7 356H has 16 cores.
• Threads: Both have 16 threads.
• Base clock: 1.80 GHz for the Core 5 221TE; 1.90 GHz for the Core Ultra 7 356H.
• Boost clock: 5.00 GHz for the Core 5 221TE; 4.70 GHz for the Core Ultra 7 356H.
• TDP: 45 W for the Core 5 221TE; 25 W for the Core Ultra 7 356H.
• Socket: Intel Socket 1700 for the Core 5 221TE; Intel BGA 2540 for the Core Ultra 7 356H.
• Process node: 10 nm for the Core 5 221TE; 3 nm for the Core Ultra 7 356H.
• Die size: 215 mm² for the Core 5 221TE; not recorded for the Core Ultra 7 356H.
• L1 cache: 80 KB per core for the Core 5 221TE; 192 KB per core for the Core Ultra 7 356H.
• L2 cache: 1.25 MB per core for the Core 5 221TE; 2.5 MB per core for the Core Ultra 7 356H.
• L3 cache: 24 MB shared for the Core 5 221TE; 18 MB shared for the Core Ultra 7 356H.
• Memory support: DDR4 and DDR5 for the Core 5 221TE; DDR5 and LPDDR5X for the Core Ultra 7 356H.
• Memory bandwidth: 76.8 GB/s for the Core 5 221TE; 115.2 GB/s for the Core Ultra 7 356H.
• ECC memory: Supported on the Core 5 221TE; not supported on the Core Ultra 7 356H.
• PCIe lanes: 16 lanes (Gen 5) for the Core 5 221TE; 12 lanes (Gen 5) for the Core Ultra 7 356H.
• Integrated graphics: UHD Graphics 730 for the Core 5 221TE; Intel Xe3 Graphics for the Core Ultra 7 356H.
• Market segment: Desktop for the Core 5 221TE; Mobile for the Core Ultra 7 356H.
• Release date: 2025-01-12 for the Core 5 221TE; 2026-01-04 for the Core Ultra 7 356H.
• Launch MSRP: $232 for the Core 5 221TE; not recorded for the Core Ultra 7 356H.

Head-to-Head Benchmarks

The head-to-head data shows a clean sweep for the Intel Core Ultra 7 356H across all 17 tests. The largest single advantage appears in PassMark find prime numbers, where the Core Ultra 7 356H scores 327 versus 59, an 82% lead. This test heavily favors the newer architecture and higher core count, indicating a massive difference in integer-heavy mathematical workloads.

Memory bandwidth and cache scaling also reflect in the results. PassMark data compression shows the Core Ultra 7 356H at 336177 versus 156682, a 53.4% advantage. PassMark data encryption records 26345 versus 8963, a 66% lead. These results align with the higher 115.2 GB/s memory bandwidth of the Core Ultra 7 356H, which allows faster data movement for compression and encryption tasks.

Floating-point performance shows a similarly large gap. PassMark floating point math scores 103128 for the Core Ultra 7 356H versus 31661 for the Core 5 221TE, a 69.3% difference. PassMark extended instructions follow with 27898 versus 9655, a 65.4% lead. The Core Ultra 7 356H also wins PassMark integer math at 83111 versus 42303, a 49.1% advantage.

Multi-threaded rendering tests confirm the trend. Cinebench R15 multi-core shows 3055 versus 1139, a 62.7% lead. Cinebench R20 multi-core shows 12153 versus 4748, a 60.9% advantage. Cinebench R23 multi-core records 18395 versus 11305, a smaller 38.5% lead, but still a decisive margin. The Core Ultra 7 356H also leads PassMark multi-thread at 33978 versus 13301, a 60.9% difference.

Single-core performance, while closer, still favors the Core Ultra 7 356H consistently. Cinebench R15 single-core shows 303 versus 160, a 47.2% lead. Cinebench R20 single-core shows 1715 versus 670, a 60.9% advantage. Cinebench R23 single-core records 2040 versus 1596, a 21.8% lead. PassMark single-thread shows 4072 versus 1734, a 57.4% difference, and the duplicate PassMark singlethread test confirms the same result.

Additional tests include PassMark physics at 2895 versus 977, a 66.3% lead, and PassMark random string sorting at 40990 versus 16929, a 58.7% advantage. Every recorded benchmark ends with the Intel Core Ultra 7 356H ahead, with no tests favoring the Intel Core 5 221TE. The database records winsA as 0 and winsB as 17, confirming the unidirectional performance relationship between these two processors.