Intel Core Ultra 5 338H vs Intel Processor U301L Comparison

Head-to-Head Benchmarks

The Intel Core Ultra 5 338H establishes a dominant performance profile in the recorded database, while the Intel Processor U301L has no individual benchmark entries registered. Because the U301L lacks any recorded test scores, direct per-test comparisons are not possible from the data. The Ultra 5 338H instead carries a complete set of Cinebench and PassMark results, all of which position it firmly in the upper tier of mobile processors. Its average benchmark score of 33,989 places it at the 84th percentile of all CPUs tracked, a strong standing that reflects consistent multi-threaded and single-threaded capability.

The most telling figures come from Cinebench. The Ultra 5 338H scores 16,331 in Cinebench R23 multi-core, 10,213 in Cinebench R20 multi-core, and 2,504 in Cinebench R15 multi-core. Single-core results also hold up well: 2,044 in R23, 1,441 in R20, and 305 in R15. These numbers indicate a processor that scales effectively across both lightly threaded and fully loaded workloads. PassMark tests reinforce the same picture. Integer math reaches 64,934, floating point math hits 84,067, and extended instructions land at 23,906. Data compression scores 276,539, while data encryption records 21,367. Random string sorting finishes at 34,082, and the multithread score is 28,717. Single-thread PassMark performance sits at 4,180. Prime number finding produces 304, and physics simulation scores 2,697.

The nearest rivals in the database provide the context for interpreting these scores. The Ultra 5 338H trails the Intel Core Ultra 7 165H by only 0.3% in average score, with the 165H posting 34,083 against the 338H's 33,989. It surpasses the Intel Core i7-12800HX by 0.3% (33,875) and the Intel Xeon 6353P by 0.4% (33,844). Against the AMD EPYC 4244P, the 338H is behind by 0.7% (34,220). These deltas are small, which shows the 338H competes at the same performance tier as those established desktop and mobile parts despite its mobile designation. The U301L, by contrast, shows an average benchmark score of 0 and a 50th percentile placement, with no nearest rivals listed and no benchmark entries. The database records no head-to-head benchmark pairings between the two processors, so every comparative statement must rest on the absence of U301L data and the presence of the 338H's full result set.

The Verdict

The data points to one clear conclusion: the Intel Core Ultra 5 338H is the only processor in this pairing with measured performance evidence. The Intel Processor U301L has no recorded benchmark scores, which means the database cannot verify any performance claim for it. The 338H, on the other hand, delivers a complete suite of scores that place it at the 84th percentile of all CPUs. Its nearest rivals, including the Core Ultra 7 165H and Core i7-12800HX, sit within a 0.7% band, confirming that the 338H belongs in respectable company. Anyone choosing between these two based on the recorded data should select the Ultra 5 338H for any workload where measured performance matters. The U301L may serve a different role in a system, but the database contains no evidence of its computing output. The 338H also leads in structural specifications: 12 cores and 12 threads against 5 cores and 6 threads, a 4.70 GHz boost clock against 2.20 GHz, and a 3 nm process node against 10 nm. Those differences alone would suggest a large performance gap, and the benchmark data confirms the 338H operates at a level the U301L cannot substantiate.

Architecture Differences

The two processors come from different architectural generations and manufacturing processes. The Intel Core Ultra 5 338H uses the Panther Lake architecture on a 3 nm process node, built by Intel, and belongs to the Core Ultra Series 3. Its generation is listed as Ultra 5 (Panther Lake-H). The Intel Processor U301L uses Raptor Lake architecture on a 10 nm process node, also built by Intel, with its generation listed as Intel Processor (Raptor Lake). The 338H uses the Intel BGA 2540 socket, while the U301L uses Intel Socket 1700. The 338H integrates Arc B370 graphics, whereas the U301L carries UHD Graphics 64EU. Memory support differs as well: the 338H supports LPDDR5X exclusively, while the U301L supports both DDR4 and DDR5. Both use dual-channel memory buses, but the 338H records a memory bandwidth of 136.5 GB/s, while the U301L has no bandwidth figure listed. PCIe connectivity also differs: the 338H provides Gen 5 with 4 CPU lanes, and the U301L provides Gen 4 with 8 CPU lanes. Cache hierarchies are distinct. The 338H has 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3. The U301L has 80 KB of L1 per core, 1.25 MB of L2 per core, and 8 MB of shared L3. The 338H's larger cache structure aligns with its higher core count and faster clock speeds. Neither processor supports ECC memory, and neither has an unlocked multiplier. The 338H launched on 2026-01-04, while the U301L launched on 2024-04-07.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 5 338H has 12 cores and 12 threads. The Intel Processor U301L has 5 cores and 6 threads.

Q: What is the boost clock difference between the two?

A: The Intel Core Ultra 5 338H boosts to 4.70 GHz, while the Intel Processor U301L boosts to 2.20 GHz.

Q: Does the Intel Processor U301L have any benchmark scores in the database?

A: No. The U301L has an empty benchmarks array, an average benchmark score of 0, and no nearest rivals listed. The Ultra 5 338H has 17 recorded benchmark scores.

Q: How does the Ultra 5 338H compare to its nearest rivals?

A: It is 0.3% behind the Intel Core Ultra 7 165H, 0.3% ahead of the Intel Core i7-12800HX, 0.4% ahead of the Intel Xeon 6353P, and 0.7% behind the AMD EPYC 4244P.

Q: What memory types does each processor support?

A: The Intel Core Ultra 5 338H supports LPDDR5X. The Intel Processor U301L supports DDR4 and DDR5.

Q: What are the process nodes for each chip?

A: The Intel Core Ultra 5 338H uses a 3 nm process node. The Intel Processor U301L uses a 10 nm process node.

Where Each One Wins

The Intel Core Ultra 5 338H wins in every category where the database provides data. It has a higher base clock (1.90 GHz versus 1.20 GHz) and a higher boost clock (4.70 GHz versus 2.20 GHz). It doubles or more than doubles the core and thread counts. Its L3 cache is 18 MB shared versus 8 MB shared, and its L2 cache per core is 2.5 MB versus 1.25 MB. The 338H also offers a higher memory bandwidth figure at 136.5 GB/s, while the U301L has none recorded. PCIe generation favors the 338H as well, with Gen 5 rather than Gen 4, although the U301L provides more CPU lanes (8 versus 4). The 338H uses a smaller 3 nm process node, integrates Arc B370 graphics, and carries an 84th percentile ranking. The U301L, with its 50th percentile placement and no benchmark scores, cannot claim a single measured win.

The U301L does have a few structural advantages, though none are performance-related. It supports both DDR4 and DDR5 memory, giving it broader platform compatibility than the 338H's LPDDR5X-only support. It uses Intel Socket 1700, which is a different physical socket from the 338H's Intel BGA 2540. The U301L also lists a launch MSRP of $107, while the 338H has no launch MSRP recorded. Its PCIe Gen 4 with 8 CPU lanes offers double the lane count of the 338H's Gen 5 with 4 lanes, which could matter for certain expansion configurations. The U301L also carries a lower TDP of 15 watts against the 338H's 25 watts, which may indicate lower power draw in the recorded specifications. These differences do not translate into measurable performance in the database, but they do define the U301L as a distinct, lower-power, more platform-flexible part.

Specification Differences

The two processors differ across nearly every specification field in the database. The 338H has 12 cores and 12 threads, while the U301L has 5 cores and 6 threads. Base clocks are 1.90 GHz versus 1.20 GHz, and boost clocks are 4.70 GHz versus 2.20 GHz. TDP is 25 watts versus 15 watts. Sockets differ: Intel BGA 2540 for the 338H, Intel Socket 1700 for the U301L. Architecture is Panther Lake versus Raptor Lake, with process nodes of 3 nm versus 10 nm. Cache sizes differ at every level: L1 is 192 KB per core versus 80 KB per core, L2 is 2.5 MB per core versus 1.25 MB per core, and L3 is 18 MB shared versus 8 MB shared. Memory support is LPDDR5X versus DDR4 and DDR5. Memory bandwidth is 136.5 GB/s for the 338H, with no figure recorded for the U301L. PCIe is Gen 5 with 4 lanes versus Gen 4 with 8 lanes. Integrated graphics are Arc B370 versus UHD Graphics 64EU. The 338H belongs to the Core Ultra Series 3, while the U301L has no series listed. Release dates differ by roughly two years, with the 338H dated 2026-01-04 and the U301L dated 2024-04-07. The U301L has a launch MSRP of $107; the 338H has none. The 338H records a part number of SA4REQ9EW, and the U301L records SRPKFQ5CW. Both are active production parts, both target the mobile market segment, neither supports ECC memory, and neither has an unlocked multiplier.