Intel Core 5 315 vs Intel Core Ultra 5 225F Comparison

Head-to-Head Benchmarks

The benchmark data records a comprehensive sweep for the Intel Core Ultra 5 225F. Across all 17 head-to-head comparisons, the desktop part wins every single test. The Core 5 315, a mobile-oriented chip, trails by margins ranging from a modest 3.2% to a dominant 68.2%.

The closest contest is in Cinebench R23 single-core. The Core Ultra 5 225F scores 1893 against 1832 for the Core 5 315, a 3.2% advantage. That narrow gap shows that the Core 5 315's single-thread architecture is competitive in lightly threaded work, even if it cannot match the top end of the Ultra 5's boost clock.

Multi-core results tell a very different story. In Cinebench R23 multi-core, the Core Ultra 5 225F posts 16467, which is 21.2% ahead of the Core 5 315's 12981. The older Cinebench R15 and R20 multi-core tests show even larger gaps. The Ultra 5 scores 2660 in R15 multi-core versus 1308, a 50.8% deficit for the Core 5 315. In R20 multi-core, the Ultra 5's 11059 beats 5452 by 50.7%. These results reflect the raw core and thread advantage of the desktop chip.

The Passmark suite reinforces the pattern. Data compression shows the Ultra 5 at 310843 against 146143, a 53% gap. Data encryption doubles the Core 5 315's score: 22648 versus 11119, a 50.9% deficit. Extended instructions favor the Ultra 5 by 53.1%, with scores of 28027 against 13143. Floating point math shows a 54.1% gap (92554 versus 42441), and integer math a 52.3% gap (66417 versus 31690).

The largest single margin is in find prime numbers. The Core Ultra 5 225F scores 352, while the Core 5 315 manages only 112, a 68.2% difference. That test is heavily dependent on raw core count and memory bandwidth, both of which favor the desktop part. Physics simulation follows a similar path: 2430 versus 1163, a 52.1% gap. Random string sorting shows a 53% deficit (37325 versus 17551). Passmark multi-thread scores 31004 for the Ultra 5 against 15272, a 50.7% gap.

The single-thread Passmark tests are the second-closest grouping. The Ultra 5 scores 4397, the Core 5 315 scores 4021, an 8.6% difference. This aligns with the Cinebench R23 single-core result and confirms that the Core 5 315's per-core performance is respectable, just not class-leading.

The average benchmark score in the database places the Core Ultra 5 225F at 37313, which sits at the 85th percentile of all CPUs. The Core 5 315 averages 18188, at the 72nd percentile. The nearest rivals in the database for the Ultra 5 include the Intel Core i9-13900HK at 37425 (0.3% higher), the AMD Ryzen 7 7735H at 37161 (0.4% lower), and the Intel Core i7-13700 at 37135 (0.5% lower). The Core 5 315's nearest rivals are the AMD EPYC 9274F at 18189, the Intel Core i7-9700 at 18180, and the Intel Core i7-1365U at 18177, all within 0.1%.

Architecture Differences

The two processors come from different design families and target different market segments. The Intel Core 5 315 uses the Wildcat Lake codename and belongs to the Core 5 generation. It is built on a 3 nm process at Intel's foundry. The Core Ultra 5 225F, part of the Core Ultra Series 2, uses the Arrow Lake architecture with the Arrow Lake-S codename. It is also built on a 3 nm process, but at TSMC, and carries 17,800 million transistors on a 243 mm² die.

Core counts differ substantially. The Core 5 315 has 6 cores and 6 threads, with no hyper-threading. The Core Ultra 5 225F has 10 cores and 10 threads. Both parts lock their multipliers, so neither supports overclocking.

Cache hierarchies are structured differently. The Core 5 315 has 192 KB of L1 cache, 2.5 MB of L2, and 6 MB of shared L3. The Core Ultra 5 225F specifies 192 KB of L1 per core, 3 MB of L2 per core, and 20 MB of shared L3. The L3 advantage for the Ultra 5 is more than threefold at the chip level.

Memory support also diverges. The Core 5 315 supports DDR5 and LPDDR5X over a single-channel memory bus with 59.7 GB/s of bandwidth. The Core Ultra 5 225F supports DDR5 over a dual-channel bus with 102.4 GB/s of bandwidth. That bandwidth difference directly explains part of the multi-core performance gap, especially in memory-sensitive workloads like data compression and random string sorting.

PCIe connectivity is another separator. The Core 5 315 provides Gen 4 with 6 CPU lanes. The Core Ultra 5 225F provides Gen 5 with 20 CPU lanes. The desktop part also has no integrated graphics, while the Core 5 315 includes Intel Xe3 Graphics with 2 Xe cores. The mobile chip uses the Intel BGA 1516 socket; the desktop chip uses Intel Socket 1851.

Clock speeds favor the Ultra 5 as well. The Core 5 315 has a base clock of 1.50 GHz and a boost clock of 4.40 GHz. The Core Ultra 5 225F has a base clock of 3.30 GHz and a boost clock of 4.90 GHz. The TDP figures reflect their intended environments: 15 watts for the Core 5 315, 65 watts for the Core Ultra 5 225F. Neither supports ECC memory.

The release dates are separated by over a year. The Core Ultra 5 225F launched on 2025-01-06 with a launch MSRP of $231. The Core 5 315 launched on 2026-04-15 with a launch MSRP of $340.

FAQ

Q: Which processor has the higher single-core performance?

A: The Intel Core Ultra 5 225F leads in every single-thread test. In Cinebench R23 single-core it scores 1893 versus 1832 for the Core 5 315, a 3.2% margin. In Passmark single-thread, it scores 4397 against 4021, an 8.6% margin.

Q: How large is the multi-core performance gap?

A: The Core Ultra 5 225F wins all multi-core tests by wide margins. Cinebench R23 multi-core shows a 21.2% gap (16467 versus 12981). Older Cinebench R15 and R20 multi-core tests show roughly 50.8% and 50.7% gaps respectively.

Q: Does the Core 5 315 have integrated graphics?

A: Yes. The Core 5 315 includes Intel Xe3 Graphics with 2 Xe cores. The Core Ultra 5 225F has no integrated graphics.

Q: Which processor uses more memory bandwidth?

A: The Core Ultra 5 225F uses a dual-channel memory bus with 102.4 GB/s of bandwidth. The Core 5 315 uses a single-channel bus with 59.7 GB/s.

Q: Are these processors overclockable?

A: No. Both the Core 5 315 and the Core Ultra 5 225F have locked multipliers.

Q: Which processor has more L3 cache?

A: The Core Ultra 5 225F has 20 MB of shared L3 cache. The Core 5 315 has 6 MB of shared L3 cache.

The Verdict

The data points to a clear performance hierarchy. The Intel Core Ultra 5 225F is the faster processor in every recorded benchmark, with an average score of 37313 at the 85th percentile. The Intel Core 5 315 averages 18188 at the 72nd percentile. Anyone choosing strictly on performance should select the Core Ultra 5 225F.

The Core 5 315 does have advantages outside raw speed. It includes integrated graphics, which the Ultra 5 lacks. It consumes 15 watts versus 65 watts, making it suitable for systems without discrete graphics or with tight thermal budgets. It also supports LPDDR5X memory, which the Ultra 5 does not.

The Core Ultra 5 225F counters with a newer PCIe implementation (Gen 5, 20 lanes versus Gen 4, 6 lanes), dual-channel memory, more cache, more cores, and a higher boost clock. Its launch MSRP of $231 is lower than the Core 5 315's $340, though pricing should not be the deciding factor in a performance comparison.

For a desktop build with discrete graphics, the Core Ultra 5 225F is the obvious pick. For a mobile or low-power system where integrated graphics and 15-watt operation matter, the Core 5 315 has a role. The benchmark results do not support any other conclusion.

Specification Differences

• Cores: 6 (Core 5 315) versus 10 (Core Ultra 5 225F)
• Threads: 6 versus 10
• Base clock: 1.50 GHz versus 3.30 GHz
• Boost clock: 4.40 GHz versus 4.90 GHz
• TDP: 15 watts versus 65 watts
• Socket: Intel BGA 1516 versus Intel Socket 1851
• Codename: Wildcat Lake versus Arrow Lake-S
• Foundry: Intel versus TSMC
• Transistors: Not listed versus 17,800 million
• Die size: Not listed versus 243 mm²
• L2 cache: 2.5 MB versus 3 MB per core
• L3 cache: 6 MB shared versus 20 MB shared
• Memory support: DDR5, LPDDR5X versus DDR5
• Memory bus: Single-channel versus Dual-channel
• Memory bandwidth: 59.7 GB/s versus 102.4 GB/s
• PCIe: Gen 4, 6 lanes versus Gen 5, 20 lanes
• Integrated graphics: Intel Xe3 Graphics (2 Xe) versus N/A
• Market segment: Mobile versus Desktop
• Release date: 2026-04-15 versus 2025-01-06
• Launch MSRP: $340 versus $231
• Part number: SAEFC versus SRQD2SRVF9

Where Each One Wins

The Core Ultra 5 225F wins everywhere performance is measured. It leads in Cinebench R15, R20, and R23, both single-core and multi-core. It leads in all Passmark tests: data compression, data encryption, extended instructions, find prime numbers, floating point math, integer math, multi-thread, physics, random string sorting, and single-thread. The smallest margin is 3.2% in Cinebench R23 single-core; the largest is 68.2% in find prime numbers.

The Core 5 315 wins only in characteristics outside the benchmark suite. It has integrated graphics, so a system built around it needs no separate GPU. It draws 15 watts, which suits fanless or battery-powered designs. It supports LPDDR5X, an option for compact memory layouts. It targets the mobile segment with a BGA socket, meaning it is soldered to the motherboard rather than socketed.

Use-case selection follows naturally. Choose the Core Ultra 5 225F for a desktop workstation, a content-creation rig, or any scenario where multi-threaded throughput and high memory bandwidth are the priority. The 20 MB L3 cache and 102.4 GB/s bandwidth make it strong for compression, encryption, and physics workloads. Choose the Core 5 315 for a compact mobile device where the integrated Xe3 graphics, 15-watt TDP, and single-channel LPDDR5X support align with the physical constraints. The benchmark data does not show a scenario where the Core 5 315 outperforms the Core Ultra 5 225F in compute speed.