Intel Core 5 221E vs Intel Core Ultra X7 358H Comparison
Intel Core 5 221E
Core Ultra X7 358H
PERFORMANCE BENCHMARKS
Analysis: Intel Core 5 221E vs Intel Core Ultra X7 358H
Head-to-Head Benchmarks
The benchmark data reveals a clear split between these two processors, with the Intel Core Ultra X7 358H dominating in most workloads but the Intel Core 5 221E taking decisive wins in single-threaded and integer-heavy tasks. The X7 358H claims 11 of the 17 recorded benchmark victories.
The largest margin in the entire comparison belongs to the Ultra X7 358H in PassMark's find prime numbers test, where it scores 337 against 173 for the Core 5 221E, a 94.8% advantage. This specialized workload shows the Panther Lake chip's ability to sustain extreme throughput on a specific task type. Similarly, the extended instructions test shows a 49.7% lead for the Ultra X7 358H (27274 versus 18216), and data encryption favors the Ultra X7 358H by 35.6% (26046 versus 19205). Floating point math also goes decisively to the Ultra X7 358H, with a 31.4% delta (103842 versus 79028), and physics computations follow with a 35.5% edge (3021 versus 2230).
The multi-core Cinebench results are not uniform across versions. In Cinebench R15 multi-core, the Ultra X7 358H wins with 3027 against 2613, a 15.8% margin. The R20 multi-core test also goes to the Ultra X7 358H, 12011 versus 10891, a 10.3% delta. However, Cinebench R23 multi-core flips dramatically: the Core 5 221E scores 25933 against 18747, a 27.7% advantage. PassMark multithread still favors the Ultra X7 358H, 33802 versus 30510 (10.8%), and data compression shows a narrow 2.5% win for the Ultra X7 358H (332508 versus 324285). Random string sorting also goes to the Ultra X7 358H by 7.1% (40357 versus 37686).
Single-core results tell a different story. Cinebench R15 single-core goes to the Core 5 221E by 18.1% (368 versus 301.5). Cinebench R20 single-core, however, goes to the Ultra X7 358H by 10.3% (1695 versus 1537), while Cinebench R23 single-core is a massive 43.2% win for the Core 5 221E (3661 versus 2080). The PassMark single-thread scores are nearly identical: 4147 for the Core 5 221E versus 4124 for the Ultra X7 358H, a 0.6% delta. Integer math is one of the Core 5 221E's strongest results, scoring 117813 against 83147, a 29.4% advantage.
Where Each One Wins
The Ultra X7 358H is the clear choice for encryption, compression, extended instruction workloads, physics simulation, and floating point math. Its wins in data compression, data encryption, extended instructions, find prime numbers, floating point math, multithread, physics, random string sorting, and two of the three Cinebench multi-core tests indicate broad strength in parallel compute tasks that rely on modern instruction sets and memory bandwidth. The 153.6 GB/s memory bandwidth of the Ultra X7 358H, double the 89.6 GB/s of the Core 5 221E, likely supports these results.
The Core 5 221E wins in Cinebench R23 multi-core and single-core, Cinebench R15 single-core, integer math, and the PassMark single-thread tests. Its 5.20 GHz boost clock against 4.80 GHz for the Ultra X7 358H helps explain the single-thread dominance, especially the 43.2% Cinebench R23 single-core margin. The integer math result of 117813 versus 83147 suggests that the Bartlett Lake architecture handles integer-heavy code with particular efficiency, and the 24 MB shared L3 cache versus 18 MB likely contributes to the R23 multi-core win.
Architecture Differences
The two processors come from fundamentally different Intel design families. The Ultra X7 358H uses the Panther Lake codename, part of the Core Ultra Series 3, built on a 3 nm process node. The Core 5 221E uses the Bartlett Lake codename on a 10 nm process node. Both are fabricated by Intel, but the process gap is substantial.
Core counts differ: the Ultra X7 358H has 16 cores and 16 threads, while the Core 5 221E has 14 cores and 20 threads. The Core 5 221E therefore supports more concurrent threads despite fewer physical cores, a result of its hybrid thread configuration. Cache layouts also differ. The Ultra X7 358H has 192 KB L1 per core, 3 MB L2 per core, and 18 MB shared L3. The Core 5 221E has 80 KB L1 per core, 2 MB L2 per core, and 24 MB shared L3. The larger L3 on the Core 5 221E is notable for workloads with high data reuse.
Memory support separates the two clearly. The Ultra X7 358H supports LPDDR5X with dual-channel memory and 153.6 GB/s bandwidth. The Core 5 221E supports DDR4 and DDR5 with dual-channel memory and 89.6 GB/s bandwidth. ECC memory is supported only on the Core 5 221E. PCIe connectivity also differs: the Ultra X7 358H offers Gen 5 with 4 CPU-only lanes, while the Core 5 221E offers Gen 5 with 16 CPU-only lanes. The integrated graphics differ as well, with the Ultra X7 358H featuring Arc B390 and the Core 5 221E featuring UHD Graphics 730. The Core 5 221E has a die size of 257 mm², while no die size is recorded for the Ultra X7 358H.
Socket and market positioning diverge completely. The Ultra X7 358H uses Intel BGA 2540 and targets the mobile market segment, with a 25 W TDP. The Core 5 221E uses Intel Socket 1700, targets the desktop segment, and has a 65 W TDP. The release dates differ by roughly a year, with the Core 5 221E released in January 2025 and the Ultra X7 358H released in January 2026. Both are active products, and neither has an unlocked multiplier. The Core 5 221E has a launch MSRP of $232.
The Verdict
The data supports a workload-based decision rather than a clear overall winner. For users prioritizing encryption, floating point math, physics, extended instructions, and general parallel throughput, the Ultra X7 358H is the stronger part. Its 94.8% lead in find prime numbers, 49.7% lead in extended instructions, and 35.5% lead in physics are definitive. The 153.6 GB/s memory bandwidth and 3 nm process node give it a structural advantage in memory-hungry and latency-sensitive parallel tasks.
For users prioritizing single-thread responsiveness, integer math, and Cinebench R23 performance, the Core 5 221E is the better choice. Its 43.2% Cinebench R23 single-core lead and 29.4% integer math lead are substantial. The 20 threads on 14 cores provide strong multi-thread capability, as shown by the 27.7% Cinebench R23 multi-core win. The 24 MB L3 cache and 5.20 GHz boost clock are the likely drivers.
The average benchmark scores are close: 40967 for the Ultra X7 358H against 40144 for the Core 5 221E, a difference of about 2%. Both sit at the 87th percentile among all CPUs. The nearest rivals confirm the competitive positioning. The Ultra X7 358H sits within 0.7% of the AMD Ryzen AI 5 PRO 440, Intel Core Ultra 7 356H, AMD Ryzen AI 5 PRO 435G, and Intel Core Ultra 7 366H. The Core 5 221E sits within 0.4% of the AMD Ryzen 7 7700, AMD Ryzen AI 9 365, AMD Ryzen 9 270, and Intel Core i9-13905H.
FAQ
Q: Which processor has the higher single-thread score in Cinebench R23?
A: The Intel Core 5 221E wins Cinebench R23 single-core with a score of 3661 versus 2080 for the Intel Core Ultra X7 358H, a 43.2% advantage.
Q: How do the two processors compare in memory bandwidth?
A: The Intel Core Ultra X7 358H supports LPDDR5X with 153.6 GB/s bandwidth, while the Intel Core 5 221E supports DDR4 and DDR5 with 89.6 GB/s bandwidth.
Q: Which processor supports ECC memory?
A: The Intel Core 5 221E supports ECC memory. The Intel Core Ultra X7 358H does not.
Q: What is the core and thread count difference?
A: The Intel Core Ultra X7 358H has 16 cores and 16 threads. The Intel Core 5 221E has 14 cores and 20 threads.
Q: Which processor has a larger L3 cache?
A: The Intel Core 5 221E has 24 MB shared L3 cache, while the Intel Core Ultra X7 358H has 18 MB shared L3 cache.
Q: What are the process nodes for each processor?
A: The Intel Core Ultra X7 358H is built on a 3 nm process node. The Intel Core 5 221E is built on a 10 nm process node.
Specification Differences
| Specification | Intel Core Ultra X7 358H | Intel Core 5 221E |
|---|---|---|
| Cores | 16 | 14 |
| Threads | 16 | 20 |
| Base Clock | 1.90 GHz | 2.70 GHz |
| Boost Clock | 4.80 GHz | 5.20 GHz |
| TDP | 25 W | 65 W |
| Socket | Intel BGA 2540 | Intel Socket 1700 |
| Codename | Panther Lake | Bartlett Lake |
| Process Node | 3 nm | 10 nm |
| Die Size | Not recorded | 257 mm² |
| L1 Cache | 192 KB (per core) | 80 KB (per core) |
| L2 Cache | 3 MB (per core) | 2 MB (per core) |
| L3 Cache | 18 MB (shared) | 24 MB (shared) |
| Memory Support | LPDDR5X | DDR4, DDR5 |
| Memory Bandwidth | 153.6 GB/s | 89.6 GB/s |
| ECC Memory | No | Yes |
| PCIe | Gen 5, 4 Lanes (CPU only) | Gen 5, 16 Lanes (CPU only) |
| Integrated Graphics | Arc B390 | UHD Graphics 730 |
| Market Segment | Mobile | Desktop |
| Release Date | January 2026 | January 2025 |
| Launch MSRP | Not recorded | $232 |
| Multiplier Unlocked | No | No |