Intel Core 5 223PE vs Intel Core Ultra 9 285K Comparison

Head-to-Head Benchmarks

The benchmark data presents a stark contrast between Intel's two desktop processors. The Intel Core Ultra 9 285K dominates the Intel Core 5 223PE in 15 of the 17 recorded comparisons, with the Core 5 223PE winning only two tests. The average benchmark score reflects this gap: the Core Ultra 9 285K posts 83807 points, while the Core 5 223PE manages 40585 points, placing them in the 96th and 87th percentiles of all CPUs respectively.

The largest single-core victory for the Core 5 223PE appears in Cinebench R23 single-core, where it scores 3734 against 2377 for the Core Ultra 9 285K, a 57.1% advantage. The R15 single-core test also goes to the Core 5 223PE, with 376 versus 359, a 4.7% edge. These results indicate that the Core 5 223PE can outperform the Core Ultra 9 285K in specific lightly-threaded workloads, despite the Ultra 9's higher boost clock of 5.70 GHz versus 5.20 GHz.

Multi-core performance tells a different story entirely. The Core Ultra 9 285K leads by massive margins across all multi-threaded tests. In Cinebench R15 multi-core, it scores 6494 against 2666, a 58.9% deficit for the Core 5 223PE. Cinebench R20 multi-core shows 24003 versus 11111, a 53.7% gap. Cinebench R23 multi-core narrows the difference somewhat, with 42522 versus 26455, a 37.8% deficit for the Core 5 223PE.

The PassMark suite reinforces this trend. Data compression shows 790052 for the Core Ultra 9 285K versus 346623, a 56.1% deficit. Data encryption reveals 57745 versus 18448, a 68.1% gap, the largest percentage difference in the entire dataset alongside find prime numbers. Floating point math delivers 224324 versus 76468, a 65.9% deficit. Integer math shows 172379 versus 99819, a 42.1% gap. Random string sorting scores 94927 versus 35798, a 62.3% deficit. Extended instructions reach 62277 versus 24672, a 60.4% gap.

The multi-thread PassMark score of 67260 versus 31124 represents a 53.7% deficit for the Core 5 223PE. Physics testing yields 3938 versus 2493, a 36.7% gap, the smallest multi-core margin recorded. Even single-thread PassMark favors the Core Ultra 9 285K, with 5087 versus 4219, a 17.1% advantage, despite the Core 5 223PE winning Cinebench single-core tests.

Where Each One Wins

The Intel Core 5 223PE wins in Cinebench R15 single-core and Cinebench R23 single-core. These are the only two benchmarks where it takes the lead, and both are single-threaded rendering workloads. The R15 result is narrow at 4.7%, while the R23 result is substantial at 57.1%. This suggests the Core 5 223PE has a specific strength in certain single-threaded Cinebench scenarios, possibly related to its architecture or cache behavior.

The Intel Core Ultra 9 285K wins every other recorded benchmark, including all multi-core Cinebench tests, all PassMark tests, and the PassMark single-thread tests. Its multi-core dominance is consistent, with deficits for the Core 5 223PE ranging from 36.7% in physics to 70.6% in find prime numbers. The Ultra 9 also holds a 17.1% edge in PassMark single-thread, showing that its single-core advantage extends beyond Cinebench despite losing those two specific tests.

For users focused on Cinebench R23 single-core performance, the Core 5 223PE offers a clear advantage. For everything else in the recorded data, the Core Ultra 9 285K delivers substantially higher scores, particularly in encryption, compression, and prime number calculation, where its leads exceed 56%.

Architecture Differences

The two processors come from different generations and use fundamentally different designs. The Intel Core 5 223PE is built on the Bartlett Lake architecture and uses a 10 nm process node manufactured by Intel. It features 8 cores and 16 threads, with a base clock of 2.90 GHz and a boost clock of 5.20 GHz. The Core Ultra 9 285K uses the Arrow Lake architecture, specifically Arrow Lake-S, and is fabricated on a 3 nm process node by TSMC. It has 24 cores and 24 threads, with a base clock of 3.70 GHz and a boost clock of 5.70 GHz.

Cache configurations differ markedly. The Core 5 223PE provides 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 24 MB of shared L3 cache. The Core Ultra 9 285K offers 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3 cache. The Ultra 9 also carries 17,800 million transistors on a 243 mm² die, while the Core 5 223PE does not have transistor or die size data recorded.

Memory support separates the two as well. The Core 5 223PE supports both DDR4 and DDR5 memory in a dual-channel configuration, with a memory bandwidth of 89.6 GB/s. The Core Ultra 9 285K supports only DDR5, also dual-channel, but with a higher memory bandwidth of 102.4 GB/s. Both support ECC memory.

PCIe connectivity differs, with the Core 5 223PE offering Gen 5 with 16 lanes (CPU only), while the Core Ultra 9 285K provides Gen 5 with 20 lanes (CPU only). Integrated graphics also vary: the Core 5 223PE includes UHD Graphics 730, while the Core Ultra 9 285K uses Arc Xe-LPG Graphics 64EU.

The socket platforms are incompatible. The Core 5 223PE uses Intel Socket 1700, while the Core Ultra 9 285K uses Intel Socket 1851. The Core Ultra 9 285K has an unlocked multiplier, whereas the Core 5 223PE is locked. The release dates differ, with the Core Ultra 9 285K launching on 2024-10-23 and the Core 5 223PE on 2026-03-08. The launch MSRP for the Core 5 223PE is $232, and for the Core Ultra 9 285K it is $589.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 9 285K has 24 cores and 24 threads. The Intel Core 5 223PE has 8 cores and 16 threads.

Q: Which CPU wins in Cinebench R23 single-core?

A: The Intel Core 5 223PE wins with a score of 3734 against 2377 for the Intel Core Ultra 9 285K, a 57.1% advantage.

Q: What is the average benchmark score difference between the two?

A: The Intel Core Ultra 9 285K has an average benchmark score of 83807, while the Intel Core 5 223PE has 40585. The Ultra 9 sits in the 96th percentile of all CPUs, and the Core 5 is in the 87th percentile.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core 5 223PE and the Intel Core Ultra 9 285K support ECC memory.

Q: Which processor uses a smaller process node?

A: The Intel Core Ultra 9 285K uses a 3 nm process node manufactured by TSMC. The Intel Core 5 223PE uses a 10 nm process node manufactured by Intel.

Q: What are the socket requirements for each CPU?

A: The Intel Core 5 223PE uses Intel Socket 1700. The Intel Core Ultra 9 285K uses Intel Socket 1851.

The Verdict

The recorded data indicates that the Intel Core Ultra 9 285K is the dominant processor in nearly every measured workload. It wins 15 of 17 head-to-head benchmarks, including all multi-core tests and all PassMark tests. Its average benchmark score of 83807 is more than double that of the Core 5 223PE at 40585. The Ultra 9 also holds a 17.1% lead in PassMark single-thread, despite losing two Cinebench single-core tests.

The Intel Core 5 223PE is the choice only for users prioritizing Cinebench R23 single-core performance, where it leads by 57.1%, or Cinebench R15 single-core, where it leads by 4.7%. These two wins do not offset the sweeping multi-core and PassMark deficits, which range from 36.7% to 70.6% in favor of the Ultra 9.

The data supports selecting the Intel Core Ultra 9 285K for multi-threaded rendering, data compression, encryption, floating point math, and general PassMark workloads. The Core 5 223PE suits specific single-threaded Cinebench scenarios, while the Ultra 9 remains the stronger overall processor across the recorded benchmark suite.