Intel Core 5 320 vs Intel Core Ultra 9 275HX Comparison
Intel Core 5 320
Core Ultra 9 275HX
PERFORMANCE BENCHMARKS
Analysis: Intel Core 5 320 vs Intel Core Ultra 9 275HX
FAQ
Q: How do the two processors compare in overall benchmark performance?
A: The Intel Core Ultra 9 275HX has an average benchmark score of 67469, while the Intel Core 5 320 scores 18023. The Ultra 9 sits in the 94th percentile of all CPUs, compared to the 72nd percentile for the Core 5.
Q: Which processor has more cores and threads?
A: The Intel Core Ultra 9 275HX has 24 cores and 24 threads. The Intel Core 5 320 has 6 cores and 6 threads.
Q: What is the difference in boost clock speeds?
A: The Intel Core Ultra 9 275HX boosts to 5.40 GHz, while the Intel Core 5 320 reaches 4.60 GHz. The base clocks are 2.70 GHz and 1.50 GHz respectively.
Q: How much L3 cache does each processor have?
A: The Intel Core Ultra 9 275HX has 36 MB of shared L3 cache. The Intel Core 5 320 has 6 MB of shared L3 cache.
Q: Which processor supports faster PCIe connectivity?
A: The Intel Core Ultra 9 275HX uses Gen 5 with 20 lanes (CPU only). The Intel Core 5 320 uses Gen 4 with 6 lanes (CPU only).
Q: What are the memory bandwidth differences?
A: The Intel Core Ultra 9 275HX provides 102.4 GB/s over a dual-channel DDR5 bus. The Intel Core 5 320 provides 59.7 GB/s over a single-channel bus supporting DDR5 and LPDDR5X.
Architecture Differences
The two processors come from different Intel design lineages. The Intel Core 5 320 belongs to the Wildcat Lake generation, built on Intel's 3 nm process and fabricated by Intel's own foundry. The Intel Core Ultra 9 275HX is part of the Core Ultra Series 2, using the Arrow Lake architecture on the same 3 nm node but fabricated by TSMC. This foundry difference is observable in the transistor counts, with the Ultra 9 packing 17,800 million transistors across a 243 mm² die size, while the Core 5 does not report transistor or die size data.
Core configuration creates the most substantial architectural gap. The Core 5 320 is a 6-core, 6-thread part with no hyperthreading, placing it in the efficient mobile segment. The Ultra 9 275HX is a 24-core, 24-thread monster, also without hyperthreading but leveraging its massive core count for throughput. Both processors use 3 nm nodes, but the Ultra 9's Arrow Lake-HX design targets high-performance mobile workstations, whereas Wildcat Lake focuses on lower-power mainstream laptops.
Cache hierarchies differ sharply. The Core 5 320 has 192 KB of L1, 2.5 MB of L2, and 6 MB of shared L3. The Ultra 9 275HX reports 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3. The per-core L2 allocation on the Ultra 9 suggests a different data path design, one that feeds its 24 cores more aggressively.
Memory architecture also separates them. The Core 5 320 uses a single-channel memory bus with 59.7 GB/s bandwidth, supporting both DDR5 and LPDDR5X. The Ultra 9 275HX uses dual-channel DDR5 with 102.4 GB/s bandwidth. The Ultra 9's memory subsystem provides 71.5% more bandwidth, which directly benefits multi-threaded workloads that strain memory throughput.
PCIe connectivity differs by generation and lane count. The Core 5 320 offers Gen 4 with 6 CPU lanes, appropriate for modest peripheral expansion. The Ultra 9 275HX offers Gen 5 with 20 CPU lanes, a substantial upgrade for high-bandwidth devices like discrete GPUs and NVMe storage. Neither processor supports ECC memory.
The integrated graphics differ as well. The Core 5 320 uses Intel Xe3 Graphics with 2 Xe cores. The Ultra 9 275HX uses Arc Xe-LPG Graphics with 64 execution units. The Ultra 9's graphics solution is designed for more demanding visual workloads.
The multiplier is unlocked on the Ultra 9 275HX but locked on the Core 5 320. The Ultra 9 also has a higher TDP of 55 watts versus 15 watts for the Core 5, reflecting its intended high-performance chassis. The sockets differ: BGA 2114 for the Ultra 9, BGA 1516 for the Core 5.
The Verdict
The benchmark data presents a decisive split between these two processors. The Intel Core Ultra 9 275HX wins all 17 head-to-head benchmark comparisons, with no wins recorded for the Intel Core 5 320. The Ultra 9's average benchmark score of 67469 places it near workstation-class chips, with its nearest rival being the Intel Xeon w5-3525 at 67673, a 0.3% difference. The Core 5 320 at 18023 sits near the AMD Ryzen 5 1600 at 17994, a 0.2% gap.
The data indicates the Ultra 9 275HX belongs in systems demanding maximum multi-threaded throughput, such as content creation, scientific computing, or heavy compilation workloads. Its 94th percentile ranking confirms its position among high-end desktop replacement processors. The Core 5 320 targets efficiency-focused mobile designs where 15-watt operation and single-channel memory keep power and cost in check, though its 72nd percentile shows it still holds its own against mainstream desktop CPUs from prior generations.
For users prioritizing raw performance, the Ultra 9 275HX is the clear choice from the recorded data. The Core 5 320 offers a lighter-weight option for portable machines where battery life and thermals matter more than absolute compute capability. The launch MSRP for the Core 5 320 is $340, while the Ultra 9 275HX has no recorded launch price.
Specification Differences
| Specification | Intel Core 5 320 | Intel Core Ultra 9 275HX |
|----------------|------------------|--------------------------|
| Cores | 6 | 24 |
| Threads | 6 | 24 |
| Base Clock | 1.50 GHz | 2.70 GHz |
| Boost Clock | 4.60 GHz | 5.40 GHz |
| TDP | 15 W | 55 W |
| Socket | Intel BGA 1516 | Intel BGA 2114 |
| Codename | Wildcat Lake | Arrow Lake-HX |
| Generation | Core 5 (Wildcat Lake) | Ultra 9 (Arrow Lake-HX) |
| Foundry | Intel | TSMC |
| Transistors | Not recorded | 17,800 million |
| Die Size | Not recorded | 243 mm² |
| L1 Cache | 192 KB | 192 KB (per core) |
| L2 Cache | 2.5 MB | 3 MB (per core) |
| L3 Cache | 6 MB (shared) | 36 MB (shared) |
| Memory Support | DDR5, LPDDR5X | DDR5 |
| Memory Bus | Single-channel | Dual-channel |
| Memory Bandwidth | 59.7 GB/s | 102.4 GB/s |
| PCIe | Gen 4, 6 Lanes (CPU only) | Gen 5, 20 Lanes (CPU only) |
| Integrated Graphics | Intel Xe3 Graphics (2 Xe) | Arc Xe-LPG Graphics 64EU |
| Multiplier | Locked | Unlocked |
| Part Number | SAE3H | SRVFK |
Head-to-Head Benchmarks
The Intel Core Ultra 9 275HX dominates every recorded benchmark, but the margins reveal where the gap is largest and smallest. In Cinebench R23 multicore, the Ultra 9 scores 35589 versus 6197 for the Core 5, a delta of 82.6%. This is the widest gap in the Cinebench suite. Cinebench R15 multicore shows a similar pattern: 5619.5 versus 1054, an 81.2% difference. Cinebench R20 multicore follows at 72.6% behind (19899 versus 5462).
Single-core results show a much narrower divide. Cinebench R23 single-core has the Ultra 9 at 2204 and the Core 5 at 1926, a 12.6% delta. PassMark single-thread shows 4713 versus 4045, a 14.2% gap. Cinebench R15 single-core is 334 versus 276, a 17.4% difference. These numbers indicate the Ultra 9's per-thread advantage is modest, while its multicore lead is substantial.
The PassMark suite reinforces the multicore story. Integer math shows the Ultra 9 at 155218 versus 32323, a 79.2% delta. Floating-point math follows at 191186 versus 42440, a 77.8% gap. Data compression favors the Ultra 9 at 608381 versus 148779, a 75.5% lead. Data encryption shows 47112 versus 10984, a 76.7% difference. Random string sorting has the Ultra 9 at 74320 versus 18038, a 75.7% margin. Extended instructions show 47016 versus 13262, a 71.8% gap. Prime number finding has the Ultra 9 at 448 versus 110, a 75.4% lead.
The smallest multicore gap appears in PassMark physics, where the Ultra 9 scores 3338 versus 1221, a 63.4% delta. PassMark multithread shows 55759 versus 15450, a 72.3% difference. The consistent pattern across all tests is that the Ultra 9 275HX delivers roughly 4 to 5 times the multicore throughput of the Core 5 320, while only being about 12% to 17% faster in single-threaded work.
Where Each One Wins
The Intel Core Ultra 9 275HX wins in every recorded benchmark category, but the use-case implications differ by workload type. For heavily parallel tasks, the Ultra 9's 24 cores deliver enormous advantages. The Cinebench R23 multicore result of 35589 indicates strong rendering performance, making it suitable for 3D workloads and video encoding. The PassMark integer and floating-point math scores of 155218 and 191186 suggest scientific computing and financial modeling run efficiently.
Data-heavy workloads also favor the Ultra 9. The data compression score of 608381 and encryption score of 47112 point to strong archival and security processing capability. The dual-channel memory bus with 102.4 GB/s bandwidth supports these tasks, whereas the Core 5's single-channel 59.7 GB/s bus would bottleneck similar operations.
The Intel Core 5 320 finds its place in scenarios where the Ultra 9's advantages are less relevant. Its single-thread performance, while lower, remains within 12.6% to 17.4% of the Ultra 9 across different tests. For everyday productivity tasks that rely primarily on single-thread responsiveness, the Core 5 delivers acceptable performance. Its 15-watt TDP and single-channel memory indicate a design optimized for battery-operated ultraportables, where sustained multicore loads are uncommon.
The Core 5 320's integrated graphics, Intel Xe3 with 2 Xe cores, targets basic display output and light media playback rather than gaming or GPU compute. The Ultra 9's Arc Xe-LPG Graphics with 64 EU provides substantially more graphics horsepower, suitable for moderate gaming or GPU-accelerated applications.
The PCIe difference matters for expandability. The Ultra 9's Gen 5 with 20 lanes supports high-end discrete GPUs and fast NVMe storage, making it appropriate for workstation laptops with serious peripheral demands. The Core 5's Gen 4 with 6 lanes covers standard connectivity but cannot match that bandwidth.
The unlocked multiplier on the Ultra 9 275HX opens overclocking possibilities, though the data does not record overclocked results. The Core 5 320 has a locked multiplier, meaning stock clocks are the only option.
The benchmark data shows no workload category where the Core 5 320 outperforms the Ultra 9 275HX. The choice hinges on whether the Ultra 9's 4 to 5 times multicore advantage justifies its higher power draw and larger physical footprint, or whether the Core 5's efficiency profile better matches a particular mobile platform. The Core 5 320's release date of April 2026 comes after the Ultra 9's January 2025 launch, indicating Intel positioned the Core 5 as a lower-tier complement to the Ultra 9 in the mobile lineup.