Intel Core 5 221TE vs Intel Core Ultra X7 358H Comparison

The benchmark data is unambiguous: the Intel Core Ultra X7 358H outperforms the Intel Core 5 221TE in every single recorded test. Across 17 head-to-head comparisons, the Core Ultra X7 358H claims all 17 wins, with no category favoring the desktop chip. The Core Ultra X7 358H also holds a higher overall percentile rank, sitting at the 87th percentile of all CPUs in the database, while the Core 5 221TE sits at the 71st percentile. The average benchmark score of 40967 for the Core Ultra X7 358H versus 17860 for the Core 5 221TE further confirms the performance gap, which is roughly 2.3 times higher for the mobile part. This result is notable because the Core 5 221TE is a desktop processor with a higher boost clock and a larger shared L3 cache, yet it loses decisively in every workload category.

The Verdict

The Intel Core Ultra X7 358H is the clear performance leader based on all recorded measurements. Its average benchmark score of 40967 places it at the 87th percentile of all CPUs, while the Intel Core 5 221TE’s average of 17860 places it at the 71st percentile. In head-to-head testing, the Core Ultra X7 358H wins all 17 comparisons, with margins ranging from a 23.3% advantage in Cinebench R23 single-core to an 82.5% advantage in PassMark find prime numbers. For any workload that relies on raw throughput, whether multi-threaded rendering, encryption, or floating-point math, the Core Ultra X7 358H is the superior choice.

The Core 5 221TE does have its own distinct position. It is a desktop chip with ECC memory support, which the Core Ultra X7 358H lacks. It also offers a higher boost clock of 5.00 GHz compared to 4.80 GHz, and a larger shared L3 cache of 24 MB versus 18 MB. However, these advantages do not translate into any benchmark victory. The Core 5 221TE is not a competitive alternative for performance-sensitive tasks; it is the appropriate selection only when the desktop platform requirements, such as Socket 1700 compatibility or ECC memory, are mandatory.

Architecture Differences

The two processors come from different Intel families and manufacturing nodes. The Core 5 221TE is a Bartlett Lake desktop chip built on a 10 nm process, while the Core Ultra X7 358H is a Panther Lake-H mobile chip built on a 3 nm process. The process node difference is substantial, with the Core Ultra X7 358H using a significantly more advanced manufacturing technology. The Core 5 221TE has 10 cores and 16 threads, while the Core Ultra X7 358H has 16 cores and 16 threads, meaning the mobile chip has more physical cores but the same thread count. The Core 5 221TE has a base clock of 1.80 GHz and a boost clock of 5.00 GHz, whereas the Core Ultra X7 358H has a base clock of 1.90 GHz and a boost clock of 4.80 GHz.

Cache configurations differ notably. The Core 5 221TE provides 80 KB of L1 cache per core and 1.25 MB of L2 cache per core, with 24 MB of shared L3 cache. The Core Ultra X7 358H offers larger per-core allocations: 192 KB of L1 cache per core and 3 MB of L2 cache per core, but less shared L3 at 18 MB. The mobile chip also supports LPDDR5X memory with a dual-channel bus and a memory bandwidth of 153.6 GB/s, compared to the desktop chip’s DDR4 and DDR5 support with 76.8 GB/s bandwidth. The Core Ultra X7 358H doubles the memory bandwidth, a factor that contributes to its performance lead in memory-intensive tests.

The integrated graphics differ as well: the Core 5 221TE uses UHD Graphics 730, while the Core Ultra X7 358H uses Arc B390. The Core 5 221TE supports PCIe Gen 5 with 16 lanes (CPU only), whereas the Core Ultra X7 358H supports PCIe Gen 5 with only 4 lanes (CPU only). The desktop chip supports ECC memory, a feature absent from the mobile part. Both processors have locked multipliers, so neither supports overclocking.

Head-to-Head Benchmarks

The Core Ultra X7 358H dominates every benchmark category. In Cinebench R15 multi-core, it scores 3027 against 1139 for the Core 5 221TE, a 62.4% advantage. In Cinebench R20 multi-core, the margin is 12011 versus 4748, a 60.5% difference. The Cinebench R23 multi-core test shows a narrower gap: 18747 versus 11305, which is still a 39.7% lead. Single-core results follow the same pattern, with the Core Ultra X7 358H scoring 301.5 versus 160 in Cinebench R15 (46.9% higher), 1695 versus 670 in Cinebench R20 (60.5% higher), and 2080 versus 1596 in Cinebench R23 (23.3% higher).

PassMark tests reveal the largest discrepancies. The biggest single margin is in find prime numbers, where the Core Ultra X7 358H scores 337 versus 59, an 82.5% advantage. Floating-point math shows a 69.5% lead (103842 versus 31661), and physics shows a 67.7% lead (3021 versus 977). Data encryption is another strong category for the mobile chip: 26046 versus 8963, a 65.6% difference. Extended instructions show a 64.6% gap (27274 versus 9655). The Core Ultra X7 358H also leads in multithread performance (33802 versus 13301, 60.7% higher), integer math (83147 versus 42303, 49.1% higher), random string sorting (40357 versus 16929, 58.1% higher), data compression (332508 versus 156682, 52.9% higher), and single-thread tests (4124 versus 1734, 58% higher). The smallest margin in the entire dataset is the 23.3% lead in Cinebench R23 single-core, which still favors the Core Ultra X7 358H.

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core 5 221TE has a boost clock of 5.00 GHz, which is higher than the Intel Core Ultra X7 358H’s boost clock of 4.80 GHz.

Q: Does the Intel Core 5 221TE support ECC memory?

A: Yes, the Core 5 221TE supports ECC memory. The Intel Core Ultra X7 358H does not support ECC memory.

Q: What is the memory bandwidth difference between the two?

A: The Intel Core Ultra X7 358H has a memory bandwidth of 153.6 GB/s, which is exactly double the 76.8 GB/s of the Intel Core 5 221TE.

Q: How many cores does each processor have?

A: The Intel Core 5 221TE has 10 cores and 16 threads. The Intel Core Ultra X7 358H has 16 cores and 16 threads.

Q: Which processor has a larger L3 cache?

A: The Intel Core 5 221TE has a shared L3 cache of 24 MB, while the Intel Core Ultra X7 358H has a shared L3 cache of 18 MB.

Q: Which processor performs better in the Cinebench R23 multi-core test?

A: The Intel Core Ultra X7 358H scores 18747 in Cinebench R23 multi-core, compared to 11305 for the Intel Core 5 221TE, giving the mobile chip a 39.7% lead.

Where Each One Wins

The Intel Core Ultra X7 358H wins in every recorded benchmark category. Its performance is strongest in integer-heavy and floating-point workloads, as shown by the 49.1% and 69.5% leads in PassMark integer math and floating-point math, respectively. The chip also excels in security-related tasks, with a 65.6% advantage in data encryption. For multi-threaded rendering, the Cinebench R20 multi-core score of 12011 is 60.5% higher than the Core 5 221TE’s 4748. The single-thread performance is also superior, with a 58% lead in the PassMark single-thread test and a 23.3% lead in Cinebench R23 single-core. The Core Ultra X7 358H is the choice for any workload where raw compute speed matters, including data compression (332508 versus 156682), random string sorting (40357 versus 16929), and extended instruction sets (27274 versus 9655). Its performance percentile of 87 versus 71 for the desktop chip confirms its higher standing across all CPUs in the database.

The Intel Core 5 221TE does not win any benchmark category, but it retains relevance in specific system-level requirements. It supports ECC memory, a critical feature for data-integrity-sensitive environments, and it uses the Intel Socket 1700, which is a desktop platform. It also has a higher boost clock of 5.00 GHz and a larger L3 cache of 24 MB, though these specifications do not yield performance wins. Its PCIe Gen 5 support with 16 CPU lanes is more expansive than the Core Ultra X7 358H’s 4 lanes, which can matter for systems with multiple high-speed expansion devices. The Core 5 221TE is the appropriate part for a desktop build that requires ECC memory or extensive PCIe connectivity, accepting the performance deficit in all compute tests.

Specification Differences

The two processors differ across several key specification fields. The Core 5 221TE is a desktop processor on Intel Socket 1700, while the Core Ultra X7 358H is a mobile processor on Intel BGA 2540. The process node is 10 nm for the desktop chip and 3 nm for the mobile chip. Core counts differ: 10 cores for the Core 5 221TE versus 16 cores for the Core Ultra X7 358H, though both have 16 threads. The base clock is 1.80 GHz for the desktop part and 1.90 GHz for the mobile part. The boost clock is 5.00 GHz for the Core 5 221TE and 4.80 GHz for the Core Ultra X7 358H. Thermal design power is 45 watts for the desktop chip and 25 watts for the mobile chip.

Cache specifications differ in both per-core and shared capacities. The Core 5 221TE has 80 KB of L1 cache per core and 1.25 MB of L2 cache per core, with 24 MB of shared L3 cache. The Core Ultra X7 358H has 192 KB of L1 cache per core and 3 MB of L2 cache per core, with 18 MB of shared L3 cache. Memory support diverges: the Core 5 221TE supports DDR4 and DDR5 with 76.8 GB/s bandwidth, while the Core Ultra X7 358H supports LPDDR5X with 153.6 GB/s bandwidth. ECC memory is supported only on the Core 5 221TE. PCIe lanes differ, with the desktop chip offering 16 Gen 5 lanes versus 4 Gen 5 lanes for the mobile chip. Integrated graphics are UHD Graphics 730 on the Core 5 221TE and Arc B390 on the Core Ultra X7 358H. The release dates also differ, with the Core 5 221TE launching on January 12, 2025, and the Core Ultra X7 358H launching on January 4, 2026.