Intel Core 5 223PE vs Intel Core Ultra 7 155UL Comparison

The Verdict

The data shows two distinctly positioned Intel desktop processors. The Intel Core 5 223PE is a performance-focused chip built for sustained workloads, with an 87th percentile ranking among all CPUs and an average benchmark score of 40585. The Intel Core Ultra 7 155UL sits at the 50th percentile with no recorded benchmark scores in the database, placing it in a different performance class entirely.

The Core 5 223PE targets users who need raw compute throughput. Its 8 cores and 16 threads, combined with a 5.20 GHz boost clock and 65 W TDP, deliver scores like 26455 in Cinebench R23 multi-core and 31124 in Passmark multithread. The Core Ultra 7 155UL, by contrast, uses a 12-core, 14-thread configuration with a 15 W TDP and a 4.80 GHz boost clock. The database shows no benchmark results for the Ultra 7 155UL, so direct performance comparison relies on architectural and specification analysis rather than measured scores.

The Core 5 223PE is the choice for compute-heavy desktop tasks. The Core Ultra 7 155UL suits efficiency-oriented builds where power draw matters more than peak throughput. The nearest rivals to the Core 5 223PE reinforce its position: it sits within 0.3% of the AMD Ryzen AI 5 PRO 435G, 0.1% ahead of the Intel Core 7 253PE, 0.1% behind the Intel Xeon 6357P, and 0.2% ahead of the Intel Core Ultra X7 368H. This places the Core 5 223PE in a tightly competitive band near the top of the desktop CPU field.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 7 155UL has 12 cores, while the Intel Core 5 223PE has 8 cores. However, the Core 5 223PE has 16 threads versus 14 threads on the Core Ultra 7 155UL.

Q: How do their clock speeds compare?

A: The Core 5 223PE has a base clock of 2.90 GHz and a boost clock of 5.20 GHz. The Core Ultra 7 155UL has a base clock of 1.70 GHz and a boost clock of 4.80 GHz.

Q: What is the power consumption difference?

A: The Core 5 223PE has a TDP of 65 W. The Core Ultra 7 155UL has a TDP of 15 W, a substantially lower power envelope.

Q: Do both processors support the same memory?

A: The Core 5 223PE supports both DDR4 and DDR5 memory. The Core Ultra 7 155UL supports DDR5, with support depending on the motherboard. Both use a dual-channel memory bus and have a memory bandwidth of 89.6 GB/s.

Q: Which processor has more L3 cache?

A: The Core 5 223PE has 24 MB of shared L3 cache. The Core Ultra 7 155UL has 12 MB of shared L3 cache, half the amount.

Q: Are there benchmark scores for the Core Ultra 7 155UL?

A: The database contains no recorded benchmark scores for the Core Ultra 7 155UL. The Core 5 223PE has extensive benchmark data across Cinebench R15, R20, R23, and Passmark tests.

Architecture Differences

The two processors come from different architectural lineages. The Intel Core 5 223PE is built on Bartlett Lake, a codename associated with the Core 5 generation, and uses a 10 nm process node fabricated by Intel. The Intel Core Ultra 7 155UL belongs to the Core Ultra Series 1, uses the Meteor Lake architecture with the Meteor Lake-PS codename, and is built on a 7 nm process node, also by Intel. Both processors are produced by Intel as the foundry.

The Core 5 223PE uses Intel Socket 1700, while the Core Ultra 7 155UL uses Intel Socket 1851. This means the two chips are not socket-compatible and require different motherboards.

Cache structures differ meaningfully. The Core 5 223PE has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 24 MB of shared L3 cache. The Core Ultra 7 155UL has 112 KB of L1 cache per core, 2 MB of L2 cache per core, and 12 MB of shared L3 cache. The Core 5 223PE therefore has double the L3 capacity, which benefits workloads with large working sets.

The integrated graphics differ as well. The Core 5 223PE uses UHD Graphics 730, while the Core Ultra 7 155UL uses Arc Xe-LPG 64EU. The Arc solution represents a different graphics architecture, though the database does not include graphics benchmark comparisons.

ECC memory support also separates the two. The Core 5 223PE supports ECC memory, while the Core Ultra 7 155UL does not. This positions the Core 5 223PE for reliability-sensitive applications.

The Core 5 223PE was released in March 2026, while the Core Ultra 7 155UL released in April 2024. Both processors remain in active production.

Specification Differences

The specifications that differ between the two processors are as follows:

Cores and threads: The Core 5 223PE has 8 cores and 16 threads. The Core Ultra 7 155UL has 12 cores and 14 threads.

Clock speeds: The Core 5 223PE runs at 2.90 GHz base and 5.20 GHz boost. The Core Ultra 7 155UL runs at 1.70 GHz base and 4.80 GHz boost.

TDP: The Core 5 223PE is rated at 65 W. The Core Ultra 7 155UL is rated at 15 W.

Socket: The Core 5 223PE uses Intel Socket 1700. The Core Ultra 7 155UL uses Intel Socket 1851.

Process node: The Core 5 223PE uses a 10 nm process. The Core Ultra 7 155UL uses a 7 nm process.

L1 cache: The Core 5 223PE has 80 KB per core. The Core Ultra 7 155UL has 112 KB per core.

L3 cache: The Core 5 223PE has 24 MB shared. The Core Ultra 7 155UL has 12 MB shared.

Memory support: The Core 5 223PE supports DDR4 and DDR5. The Core Ultra 7 155UL supports DDR5, depending on the motherboard.

ECC memory: The Core 5 223PE supports ECC. The Core Ultra 7 155UL does not.

PCIe: The Core 5 223PE provides Gen 5 with 16 lanes (CPU only). The Core Ultra 7 155UL provides Gen 4 with 8 lanes (CPU only).

Integrated graphics: The Core 5 223PE uses UHD Graphics 730. The Core Ultra 7 155UL uses Arc Xe-LPG 64EU.

Release date: The Core 5 223PE released in March 2026. The Core Ultra 7 155UL released in April 2024.

Launch MSRP: The Core 5 223PE has a launch MSRP of $232. The Core Ultra 7 155UL has a launch MSRP of $426.

The two chips share several specifications: dual-channel memory bus, 89.6 GB/s memory bandwidth, 2 MB L2 cache per core, desktop market segment, active production status, and locked multipliers.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark comparisons between the Intel Core 5 223PE and the Intel Core Ultra 7 155UL. Additionally, the Core Ultra 7 155UL has no recorded benchmark scores in the database. This limits direct performance comparison.

The Core 5 223PE, however, has a full set of benchmark results. In Cinebench R15, it scores 2666 in multi-core and 376 in single-core. In Cinebench R20, it scores 11111 in multi-core and 1568 in single-core. In Cinebench R23, it scores 26455 in multi-core and 3734 in single-core.

Passmark results for the Core 5 223PE show 346623 in data compression, 18448 in data encryption, 24672 in extended instructions, 159 in find prime numbers, 76468 in floating point math, 99819 in integer math, 31124 in multithread, 2493 in physics, 35798 in random string sorting, and 4219 in single thread.

The average benchmark score for the Core 5 223PE is 40585, placing it at the 87th percentile of all CPUs. Its nearest rivals in the database are the Intel Core 7 253PE with an average score of 40557 (0.1% behind), the Intel Xeon 6357P with 40630 (0.1% ahead), the Intel Core Ultra X7 368H with 40518 (0.2% behind), and the AMD Ryzen AI 5 PRO 435G with 40718 (0.3% ahead).

These rival scores show the Core 5 223PE operating in a cluster of closely matched processors. The spread between the slowest and fastest rival in this group is just 200 points, roughly 0.5% of the average score. The Core 5 223PE holds its own in this field, with margins under 1% in either direction.

Without benchmark data for the Core Ultra 7 155UL, the specification gap must serve as the primary comparison. The Core 5 223PE offers a 5.20 GHz boost clock versus 4.80 GHz on the Core Ultra 7 155UL, a 2.90 GHz base clock versus 1.70 GHz, double the L3 cache, and a 65 W power envelope versus 15 W. The Core Ultra 7 155UL counters with more physical cores, a newer 7 nm process, and a lower power draw.

The percentile rankings capture the performance chasm. The Core 5 223PE sits at the 87th percentile of all CPUs. The Core Ultra 7 155UL sits at the 50th percentile. The Core 5 223PE also carries an average benchmark score of 40585, while the Core Ultra 7 155UL has an average score of 0, reflecting the absence of recorded measurements.

The benchmark results indicate the Core 5 223PE delivers strong multi-threaded performance for its class. Its Cinebench R23 multi-core score of 26455 and Passmark multithread score of 31124 confirm this. Single-thread performance is also robust, with a Cinebench R23 single-core score of 3734 and a Passmark single-thread score of 4219.

The Core Ultra 7 155UL, with its 15 W TDP, 12 cores, and 14 threads, appears designed for scenarios prioritizing power efficiency. The lack of benchmark data in the database means its measured performance remains undocumented. The specification profile suggests a processor that trades peak clocks and cache capacity for a dramatically lower power envelope.