Intel Core 5 320 vs Intel Core Ultra 9 285K Comparison

FAQ

Q: How does the Intel Core 5 320 compare to the Intel Core Ultra 9 285K in overall benchmark performance?

A: The database records a decisive gap. The Core Ultra 9 285K has an average benchmark score of 83,807, while the Core 5 320 averages 18,023. The Core Ultra 9 285K wins all 17 head-to-head benchmark comparisons, with no wins recorded for the Core 5 320.

Q: What are the percentile rankings for each processor?

A: The Intel Core Ultra 9 285K sits in the 96th percentile of all CPUs tracked in the database. The Intel Core 5 320 ranks in the 72nd percentile. This places the desktop part among the top tier of recorded processors, while the mobile chip remains above the majority of entries.

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

A: The gap widens with heavier multi-core workloads. In Cinebench R23 multi-core, the Core Ultra 9 285K scores 42,522 versus 6,197 for the Core 5 320, a delta of -85.4%. In Cinebench R15 multi-core, the scores are 6,494 and 1,054 respectively, a -83.8% difference.

Q: Do the two processors share the same process node?

A: Yes, both are built on a 3 nm process node. However, the Core Ultra 9 285K uses TSMC as the foundry, while the Core 5 320 is fabricated by Intel. The desktop part has 17,800 million transistors on a 243 mm² die, while the mobile chip has no transistor or die size data recorded.

Q: Which processor supports ECC memory?

A: Only the Intel Core Ultra 9 285K supports ECC memory. The Core 5 320 does not. This is a notable distinction for workstation or reliability-focused use cases.

Q: What are the memory bandwidth figures for each?

A: The Core Ultra 9 285K records 102.4 GB/s of memory bandwidth over a dual-channel DDR5 bus. The Core 5 320 records 59.7 GB/s over a single-channel bus supporting DDR5 and LPDDR5X.

Architecture Differences

The Intel Core 5 320 and the Intel Core Ultra 9 285K represent two different architectural approaches within Intel's lineup. The Core 5 320 is a mobile processor based on the Wildcat Lake codename, part of the Core 5 generation. The Core Ultra 9 285K belongs to the Core Ultra Series 2, built on the Arrow Lake architecture with the Arrow Lake-S codename.

The core configuration differs dramatically. The Core 5 320 has 6 cores and 6 threads, with no hyper-threading recorded. The Core Ultra 9 285K packs 24 cores and 24 threads. The physical core count alone explains a significant portion of the multi-core benchmark delta, though the clock speeds also contribute. The Core 5 320 has a base clock of 1.50 GHz and a boost clock of 4.60 GHz. The Core Ultra 9 285K starts at 3.70 GHz base and reaches 5.70 GHz boost.

Cache hierarchy separates the two parts as well. The Core 5 320 has 192 KB of L1 cache, 2.5 MB of L2, and 6 MB of shared L3 cache. The Core Ultra 9 285K has 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3 cache. The desktop processor's larger L3 pool, combined with per-core L2 allocation, supports its higher throughput in cache-sensitive workloads.

The socket and platform targets differ entirely. The Core 5 320 uses Intel BGA 1516, a soldered mobile socket. The Core Ultra 9 285K uses Intel Socket 1851, a desktop platform socket. The mobile chip has its multiplier locked, while the Core Ultra 9 285K has an unlocked multiplier for overclocking. PCIe support also diverges: the Core 5 320 provides Gen 4 with 6 CPU-only lanes, while the Core Ultra 9 285K provides Gen 5 with 20 CPU-only lanes.

Integrated graphics differ in generation and scale. The Core 5 320 carries Intel Xe3 Graphics with 2 Xe cores. The Core Ultra 9 285K uses Arc Xe-LPG Graphics with 64 execution units. The memory controllers also differ: single-channel for the mobile chip versus dual-channel for the desktop part, which directly feeds the bandwidth gap.

Head-to-Head Benchmarks

The recorded head-to-head results show a clean sweep for the Intel Core Ultra 9 285K across all 17 tests. The largest deltas appear in multi-core render workloads. In Cinebench R23 multi-core, the Core Ultra 9 285K scores 42,522 against 6,197 for the Core 5 320, a -85.4% delta. Cinebench R15 multi-core shows a similar pattern: 6,494 versus 1,054, at -83.8%. Cinebench R20 multi-core records 24,003 versus 5,462, a -77.2% delta.

Single-core performance shows a narrower but still clear gap. Cinebench R23 single-core has the Core Ultra 9 285K at 2,377 versus 1,926 for the Core 5 320, a -19% delta. Cinebench R15 single-core records 359 versus 276, at -23.1%. Cinebench R20 single-core shows 3,388 versus 771, a -77.2% delta, which is notably larger than the other single-core tests. PassMark single-thread results show 5,087 versus 4,045, a -20.5% delta.

The PassMark suite reinforces the multi-core dominance. Data compression shows 790,052 versus 148,779, a -81.2% delta. Data encryption records 57,745 versus 10,984, at -81%. Extended instructions score 62,277 versus 13,262, a -78.7% delta. Integer math delivers 172,379 versus 32,323, at -81.2%. Floating point math reaches 224,324 versus 42,440, a -81.1% delta. Physics tests record 3,938 versus 1,221, a -69% delta. Random string sorting shows 94,927 versus 18,038, at -81%. Prime number finding scores 541 versus 110, a -79.7% delta. PassMark multithread shows 67,260 versus 15,450, a -77% delta.

The Core 5 320 has no benchmark wins in the database. Every recorded test favors the Core Ultra 9 285K. The smallest margin appears in Cinebench R23 single-core at -19%, while the largest appears in Cinebench R23 multi-core at -85.4%. This pattern suggests that the Core Ultra 9 285K's advantage scales with thread utilization and cache capacity.

Specification Differences

The two processors differ across nearly every recorded specification field. Core count: 6 versus 24. Thread count: 6 versus 24. Base clock: 1.50 GHz versus 3.70 GHz. Boost clock: 4.60 GHz versus 5.70 GHz. TDP: 15 watts versus 125 watts. Socket: Intel BGA 1516 versus Intel Socket 1851. Codename: Wildcat Lake versus Arrow Lake-S. Generation: Core 5 (Wildcat Lake) versus Ultra 9 (Arrow Lake).

Foundry differs: Intel for the Core 5 320, TSMC for the Core Ultra 9 285K. The desktop part records 17,800 million transistors and a 243 mm² die size; the mobile part has no transistor or die size data. Cache allocation differs: L1 is 192 KB total for the mobile chip versus 192 KB per core for the desktop chip. L2 is 2.5 MB versus 3 MB per core. L3 is 6 MB shared versus 36 MB shared.

Memory support differs: DDR5 and LPDDR5X for the mobile chip, DDR5 only for the desktop chip. Memory bus: single-channel versus dual-channel. Memory bandwidth: 59.7 GB/s versus 102.4 GB/s. ECC memory: false versus true. PCIe: Gen 4 with 6 lanes versus Gen 5 with 20 lanes. Integrated graphics: Intel Xe3 Graphics (2 Xe) versus Arc Xe-LPG Graphics 64EU. Market segment: Mobile versus Desktop. Release date: April 15, 2026 versus October 23, 2024. Multiplier unlocked: false versus true. Part number: SAE3H versus SRQD5. Launch MSRP: the Core 5 320 at $340, the Core Ultra 9 285K at $589.

The Verdict

The benchmark data indicates a complete performance hierarchy between these two parts. The Intel Core Ultra 9 285K wins every single recorded test, with an average benchmark score of 83,807 that places it in the 96th percentile. The Intel Core 5 320 averages 18,023, sitting in the 72nd percentile. No recorded workload favors the mobile chip.

The nearest rivals for each processor frame their positions differently. The Core Ultra 9 285K competes with the Intel Core Ultra 9 290K Plus, which scores 84,003 and trails by -0.2%. It also sits near AMD EPYC 4584PX at 83,090, AMD EPYC 9135 at 82,980, and AMD EPYC 7F72 at 85,072. The Core 5 320 sits near AMD Ryzen 5 1600 at 17,994, Intel Core 5 120U at 17,898, Intel Core i5-1334U at 18,154, and AMD Ryzen 5 3600XT at 17,891.

The Core Ultra 9 285K's closest rivals are high-end server and enthusiast desktop parts, while the Core 5 320's nearest rivals are older mainstream and mobile processors. The percentile gap of 24 points (96 versus 72) confirms that these parts target entirely different performance tiers. The desktop part belongs to the top 4% of all tracked CPUs, while the mobile part sits above roughly three-quarters of the database.

Where Each One Wins

The Intel Core Ultra 9 285K wins in every category where the database records a benchmark. Multi-core rendering, single-core rendering, data compression, encryption, extended instruction throughput, prime number finding, floating point math, integer math, physics simulation, random string sorting, and single-thread performance all favor the desktop part. Its dual-channel memory controller, 36 MB of shared L3, Gen 5 PCIe, and 24 cores provide the structural advantages behind these results.

The Intel Core 5 320 has no benchmark wins to claim. Its recorded strengths are contextual rather than competitive. It uses a 3 nm process like the desktop part but draws only 15 watts of TDP, making it suitable for mobile platforms where power constraints dominate. Its 6 MB of shared L3 and 6 Gen 4 PCIe lanes fit a lightweight mobile profile. The single-channel memory bus and 59.7 GB/s bandwidth align with its lower core count.

For workloads such as Cinebench multi-core rendering, data encryption, or integer-heavy computation, the data points exclusively to the Core Ultra 9 285K. The smallest recorded delta, -19% in Cinebench R23 single-core, still represents a clear win for the desktop part. Users constrained to the mobile form factor would take the Core 5 320, but the benchmark database shows no scenario where it outperforms the Core Ultra 9 285K on performance metrics alone.