Intel Core 5 320 vs Intel Core Ultra 7 265 Comparison

Intel Core 5 320 and Intel Core Ultra 7 265 occupy different corners of Intel's lineup, and the recorded data shows they are not direct competitors. The Core 5 320 is a 6-core, 6-thread mobile processor built on the Wildcat Lake architecture, while the Core Ultra 7 265 is a 20-core, 20-thread desktop part from the Arrow Lake family. The benchmark results confirm a decisive performance gap, with the Ultra 7 265 winning every recorded head-to-head test. The Core 5 320 holds a 72nd percentile ranking among all CPUs, while the Ultra 7 265 sits at the 93rd percentile.

Architecture Differences

The two processors are built on fundamentally different designs. The Core 5 320 uses the Wildcat Lake codename and is fabricated on Intel's 3 nm process node at Intel fabs. The Core Ultra 7 265 uses the Arrow Lake architecture, specifically Arrow Lake-S, and is also on a 3 nm node, but the foundry is TSMC. Both are 3 nm parts, yet the transistor counts and die sizes are not comparable in the database, as the Core 5 320 lacks recorded transistor and die size data while the Ultra 7 265 lists 17,800 million transistors on a 243 mm² die.

Core counts differ sharply. The Core 5 320 provides 6 cores and 6 threads, meaning no simultaneous multithreading is enabled. The Core Ultra 7 265 provides 20 cores and 20 threads, also without SMT, but with more than three times the physical core count. Cache hierarchies reflect this gap. The Core 5 320 has 192 KB of L1, 2.5 MB of L2, and 6 MB of shared L3 cache. The Ultra 7 265 has 192 KB of L1 per core, 3 MB of L2 per core, and 30 MB of shared L3. The larger L3 allocation on the Ultra 7 265 is a major advantage for workloads that reuse data sets.

Memory support also separates the two. The Core 5 320 supports DDR5 and LPDDR5X memory through a single-channel bus, delivering 59.7 GB/s of bandwidth. The Ultra 7 265 supports DDR5 through a dual-channel bus, delivering 102.4 GB/s. The desktop part has roughly 72% more memory bandwidth. PCIe connectivity differs as well: the Core 5 320 uses Gen 4 with 6 CPU lanes, while the Ultra 7 265 uses Gen 5 with 20 CPU lanes. Integrated graphics are distinct, with the Core 5 320 using Intel Xe3 Graphics with 2 Xe cores and the Ultra 7 265 using Arc Xe-LPG Graphics with 32 EU. The Core 5 320 is a mobile part on Intel BGA 1516, while the Ultra 7 265 is a desktop part on Intel Socket 1851. Both lack ECC memory support and have locked multipliers.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 7 265 has 20 cores and 20 threads. The Intel Core 5 320 has 6 cores and 6 threads.

Q: What is the memory bandwidth difference?

A: The Core Ultra 7 265 provides 102.4 GB/s through a dual-channel DDR5 bus. The Core 5 320 provides 59.7 GB/s through a single-channel bus supporting DDR5 and LPDDR5X.

Q: How large is the L3 cache on each processor?

A: The Core Ultra 7 265 has 30 MB of shared L3 cache. The Core 5 320 has 6 MB of shared L3 cache.

Q: Which chip has the higher boost clock?

A: The Core Ultra 7 265 boosts to 5.30 GHz. The Core 5 320 boosts to 4.60 GHz.

Q: What are the thermal design power ratings?

A: The Core Ultra 7 265 has a TDP of 65 watts. The Core 5 320 has a TDP of 15 watts.

Q: Which processor has a higher single-thread score?

A: The Core Ultra 7 265 scores 4689 in PassMark single-thread, while the Core 5 320 scores 4045. The Ultra 7 265 leads by 13.7%.

Head-to-Head Benchmarks

The benchmark database records 17 head-to-head tests, and the Core Ultra 7 265 wins all 17. The largest margin appears in Cinebench R23 multi-core, where the Ultra 7 265 scores 42216 against 6197 for the Core 5 320, a delta of 85.3% in favor of the desktop chip. That result aligns with the core count difference: 20 cores versus 6 cores in a heavily parallel workload.

Cinebench R15 multi-core shows a similar pattern. The Ultra 7 265 scores 4255, the Core 5 320 scores 1054, a 75.2% lead. Cinebench R20 multi-core is closer in percentage terms, with the Ultra 7 265 at 6268 and the Core 5 320 at 5462, a 12.9% advantage. The R20 result is unusual compared to the other multi-core tests, suggesting the Core 5 320 scales better in that specific workload than in R15 or R23.

Single-core results also favor the Ultra 7 265, but by smaller margins. In Cinebench R23 single-core, the Ultra 7 265 scores 5960 against 1926, a 67.7% lead. In Cinebench R15 single-core, the scores are 600 and 276, a 54% lead. Cinebench R20 single-core shows 884 versus 771, a 12.8% lead. PassMark single-thread shows the smallest gap of all: 4689 versus 4045, a 13.7% edge for the Ultra 7 265.

The PassMark suite reinforces the multi-core dominance. Data compression scores 522983 for the Ultra 7 265 versus 148779 for the Core 5 320, a 71.6% lead. Data encryption is 40456 versus 10984, a 72.8% lead. Extended instructions show 41478 versus 13262, a 68% lead. Find prime numbers is 418 versus 110, a 73.7% lead. Floating point math is 172776 versus 42440, a 75.4% lead. Integer math is 134773 versus 32323, a 76% lead. Multithread is 49682 versus 15450, a 68.9% lead. Physics is 2923 versus 1221, a 58.2% lead. Random string sorting is 63833 versus 18038, a 71.7% lead.

The average benchmark score tells the same story. The Ultra 7 265 averages 64640, while the Core 5 320 averages 18023. The nearest rivals for the Ultra 7 265 are the AMD EPYC 4464P, which trails by 0.3%, and the Intel Core Ultra 7 265F, which leads by 0.3%. The Core 5 320 sits near the AMD Ryzen 5 1600, which is 0.2% behind, and the Intel Core i5-1334U, which is 0.7% ahead.

Specification Differences

The recorded specifications show clear separation across nearly every field. Core count: 6 versus 20. Thread count: 6 versus 20. Base clock: 1.50 GHz versus 2.40 GHz. Boost clock: 4.60 GHz versus 5.30 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 recorded for the Core 5 320, 17,800 million for the Ultra 7 265. Die size: not recorded for the Core 5 320, 243 mm² for the Ultra 7 265. L1 cache: 192 KB versus 192 KB per core. L2 cache: 2.5 MB versus 3 MB per core. L3 cache: 6 MB shared versus 30 MB shared. Memory support: DDR5 and LPDDR5X versus DDR5 only. Memory bus: single-channel versus dual-channel. Memory bandwidth: 59.7 GB/s versus 102.4 GB/s. PCIe: Gen 4 with 6 lanes versus Gen 5 with 20 lanes. Integrated graphics: Intel Xe3 Graphics with 2 Xe cores versus Arc Xe-LPG Graphics with 32 EU. Market segment: Mobile versus Desktop. Release date: 2026-04-15 versus 2025-01-06. Launch MSRP: $340 versus $394. Part number: SAE3H versus SRQCX.

Where Each One Wins

The Core Ultra 7 265 wins every recorded benchmark, so the use-case split is defined by the magnitude of those wins rather than by any reversal. For heavily parallel workloads, the Ultra 7 265 is the clear choice. Cinebench R23 multi-core, PassMark multithread, integer math, floating point math, and data compression all show leads of 68% or more. Rendering, video encoding, scientific simulations, and database workloads that scale across many cores will favor the Ultra 7 265. The 30 MB L3 cache and 102.4 GB/s dual-channel memory bandwidth support these heavy workloads.

The Core 5 320 is a low-power mobile part with a 15 watt TDP. Its advantage is efficiency and platform fit, not raw performance. It uses a single-channel memory bus and 6 PCIe Gen 4 lanes, which is appropriate for thin-and-light laptops. The 6-core, 6-thread configuration with a 4.60 GHz boost clock handles everyday productivity and lighter tasks without the power draw of the desktop chip. The integrated Intel Xe3 Graphics with 2 Xe cores provides basic display output, though the database does not include graphics benchmarks.

Single-thread performance shows the Ultra 7 265 ahead, but the gap narrows in PassMark single-thread to 13.7%. That means the Core 5 320 is reasonably competitive for lightly threaded tasks such as web browsing, document editing, and general desktop responsiveness, despite the overall performance deficit. The Core 5 320 also has the benefit of a mobile form factor, which the Ultra 7 265 cannot offer given its desktop Socket 1851 mounting.

The Verdict

The recorded data points to one conclusion: the Intel Core Ultra 7 265 is the faster processor by every measured metric. It wins all 17 head-to-head benchmarks, holds a 93rd percentile ranking, and delivers an average benchmark score of 64640, which is 3.59 times the Core 5 320's average of 18023. The Core 5 320 ranks in the 72nd percentile and trails in every category.

The choice between the two depends on the platform. The Ultra 7 265 is a desktop processor with 20 cores, 30 MB of L3 cache, dual-channel memory, and PCIe Gen 5 support. It is suited for multi-threaded desktop workloads where its 65 watt TDP is acceptable. The Core 5 320 is a mobile processor with 6 cores, 6 MB of L3 cache, single-channel memory, and PCIe Gen 4, built for systems where the 15 watt TDP and BGA 1516 socket matter more than raw throughput.

Buyers who need maximum multi-core performance on a desktop should take the Ultra 7 265. Users who need a low-power mobile chip for a compact laptop should take the Core 5 320, accepting that it will lose to the Ultra 7 265 in every benchmark the database records. The launch MSRP for the Core 5 320 is $340, and the launch MSRP for the Ultra 7 265 is $394.