Intel Core 5 320 vs Intel Core Ultra 7 265KF Comparison

Where Each One Wins

The recorded benchmark data presents a completely one-sided comparison. The Intel Core Ultra 7 265KF wins every single head-to-head benchmark in the database, taking 17 out of 17 tests. The Intel Core 5 320 does not win a single recorded test.

The largest gaps appear in heavily multithreaded workloads. Cinebench R23 multicore shows the Ultra 7 265KF with a score of 49736 against 6197 for the Core 5 320, a delta of -87.5%. Data compression follows a similar pattern, with the Ultra 7 265KF scoring 666589 versus 148779, a -77.7% delta. Integer math, floating point math, and random string sorting all show deltas between -77.4% and -77.6%, indicating that the Ultra 7 265KF delivers roughly four to five times the throughput in parallel integer and floating point tasks.

The gap narrows considerably in single-threaded tests, though the Ultra 7 265KF still holds a clear advantage. PassMark single thread shows a score of 4928 for the Ultra 7 265KF against 4045 for the Core 5 320, a delta of -17.9%. This is the closest result in the entire head-to-head set. Cinebench R15 single core shows 707 versus 276, a -61% delta, which is a wider gap than the PassMark single-thread result but still far smaller than the multicore deltas.

The use-case split is therefore straightforward. For any workload that scales across cores, the Ultra 7 265KF is dominant by a wide margin. For lightly threaded tasks, the Ultra 7 265KF remains ahead, but the advantage is much smaller. The Core 5 320, with its 6 cores and 6 threads, cannot compete in parallel throughput and only approaches competitiveness in single-thread scenarios.

Architecture Differences

The two processors come from different Intel families and target different market segments. The Core 5 320 is a mobile part using the Wildcat Lake codename, built on a 3 nm process at Intel's own foundry. The Core Ultra 7 265KF is a desktop part from the Arrow Lake-S codename within the Core Ultra Series 2 family, also built on a 3 nm process but fabricated by TSMC.

Core counts differ substantially. The Core 5 320 has 6 cores and 6 threads, with no hyperthreading. The Core Ultra 7 265KF has 20 cores and 20 threads. Both parts have equal core and thread counts, so neither uses simultaneous multithreading to reach its thread count.

Cache hierarchies also differ. The Core 5 320 has 192 KB of L1 cache, 2.5 MB of L2 cache, and 6 MB of shared L3 cache. The Core Ultra 7 265KF lists 192 KB per core for L1, 3 MB per core for L2, and 30 MB of shared L3 cache. The L3 advantage for the Ultra 7 265KF is substantial: 30 MB versus 6 MB.

Clock speeds tell a similar story. The Core 5 320 has a base clock of 1.50 GHz and a boost clock of 4.60 GHz. The Core Ultra 7 265KF runs at 3.90 GHz base and 5.50 GHz boost. The higher boost clock contributes to the single-thread advantage, while the higher base clock combined with 20 cores drives the multicore gap.

Memory support differs as well. The Core 5 320 supports DDR5 and LPDDR5X over a single-channel memory bus with 59.7 GB/s of bandwidth. The Core Ultra 7 265KF supports DDR5 over a dual-channel bus with 102.4 GB/s of bandwidth. PCIe connectivity also differs: the Core 5 320 provides Gen 4 with 6 CPU lanes, while the Ultra 7 265KF provides Gen 5 with 20 CPU lanes.

The Core 5 320 includes Intel Xe3 Graphics with 2 Xe cores, while the Ultra 7 265KF has no integrated graphics. The Ultra 7 265KF has an unlocked multiplier, while the Core 5 320 does not. Transistor count and die size are recorded only for the Ultra 7 265KF: 17,800 million transistors on a 243 mm² die.

Head-to-Head Benchmarks

The Cinebench suite shows the multicore dominance of the Ultra 7 265KF most clearly. In Cinebench R15 multicore, the Ultra 7 265KF scores 5013 against 1054 for the Core 5 320, a -79% delta. Cinebench R20 multicore shows 20889 versus 5462, a -73.9% delta. Cinebench R23 multicore shows 49736 versus 6197, a -87.5% delta, the largest margin of any recorded test.

Single-core Cinebench results are closer but still favor the Ultra 7 265KF. Cinebench R15 single core shows 707 versus 276, a -61% delta. Cinebench R20 single core shows 2948 versus 771, a -73.8% delta. Cinebench R23 single core shows 7021 versus 1926, a -72.6% delta. These single-core gaps are larger than the PassMark single-thread gap, which suggests the specific workload mix in Cinebench's single-core test rewards the Ultra 7 265KF's higher boost clock and architecture more heavily.

PassMark suite results follow the multicore pattern. Data encryption shows 48198 versus 10984, a -77.2% delta. Extended instructions show 54513 versus 13262, a -75.7% delta. Find prime numbers shows 486 versus 110, a -77.4% delta. Floating point math shows 189431 versus 42440, a -77.6% delta. Integer math shows 143351 versus 32323, a -77.5% delta. Multithread shows 58518 versus 15450, a -73.6% delta. Physics shows 3633 versus 1221, a -66.4% delta. Random string sorting shows 79735 versus 18038, a -77.4% delta.

The only test with a delta under 50% is PassMark single thread, where the Ultra 7 265KF scores 4928 against 4045, a -17.9% delta. This is the closest result in the entire comparison and indicates that single-threaded performance is the only area where the Core 5 320 approaches the Ultra 7 265KF.

Geekbench results are recorded only for the Ultra 7 265KF, with a multicore score of 22913 and a single-core score of 2759. No comparable Core 5 320 Geekbench data exists in the database.

FAQ

Q: Which processor has more cores and threads?

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

Q: How large is the multicore performance gap?

A: In Cinebench R23 multicore, the Ultra 7 265KF scores 49736 versus 6197 for the Core 5 320, a -87.5% delta. PassMark multithread shows 58518 versus 15450, a -73.6% delta.

Q: Is the Core 5 320 competitive in single-threaded performance?

A: The closest result in the database is PassMark single thread, where the Core 5 320 scores 4045 versus 4928 for the Ultra 7 265KF, a -17.9% delta. The Core 5 320 trails but by a much smaller margin than in multicore tests.

Q: Do both processors have integrated graphics?

A: No. The Core 5 320 includes Intel Xe3 Graphics with 2 Xe cores. The Ultra 7 265KF has no integrated graphics.

Q: What memory types do the two processors support?

A: The Core 5 320 supports DDR5 and LPDDR5X over a single-channel bus with 59.7 GB/s bandwidth. The Ultra 7 265KF supports DDR5 over a dual-channel bus with 102.4 GB/s bandwidth.

Q: Are both processors on the same process node?

A: Both use a 3 nm process, but the Core 5 320 is fabricated by Intel, while the Ultra 7 265KF is fabricated by TSMC.

Specification Differences

| Specification | Intel Core 5 320 | Intel Core Ultra 7 265KF |

|---|---|---|

| Cores | 6 | 20 |

| Threads | 6 | 20 |

| Base clock | 1.50 GHz | 3.90 GHz |

| Boost clock | 4.60 GHz | 5.50 GHz |

| TDP | 15 | 125 |

| Socket | Intel BGA 1516 | Intel Socket 1851 |

| Codename | Wildcat Lake | Arrow Lake-S |

| 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) | 30 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) | N/A |

| Market segment | Mobile | Desktop |

| Multiplier unlocked | No | Yes |

| Release date | 2026-04-15 | 2024-10-23 |

| Launch MSRP | $340 | $379 |

| Part number | SAE3H | SRQCU |

| Percentile vs all CPUs | 72 | 94 |

| Average benchmark score | 18023 | 71910 |

The Verdict

The data shows two processors with completely different roles. The Intel Core Ultra 7 265KF is a 20-core desktop processor that wins every benchmark in the comparison, with an average benchmark score of 71910 and a 94th percentile ranking among all CPUs. The Intel Core 5 320 is a 6-core mobile processor with an average benchmark score of 18023 and a 72nd percentile ranking.

For multithreaded workloads such as rendering, data compression, encryption, and heavy parallel computation, the Ultra 7 265KF is the clear choice. Its Cinebench R23 multicore score of 49736 is roughly eight times the Core 5 320's 6197. PassMark multithread, integer math, and floating point math all show deltas around -74% to -78%, meaning the Ultra 7 265KF delivers roughly four times the throughput.

For single-threaded workloads, the Ultra 7 265KF still leads, but the margin shrinks to -17.9% in PassMark single thread. This is the only recorded test where the Core 5 320 comes within a meaningful distance. Users whose workloads are predominantly single-threaded would still see better performance from the Ultra 7 265KF, but the difference is less dramatic.

The Core 5 320 offers integrated graphics in a mobile package with a 15 TDP, while the Ultra 7 265KF is a 125 TDP desktop part with no integrated graphics and an unlocked multiplier. The socket types differ entirely, so the two processors are not interchangeable in any system. The Core 5 320 belongs in a mobile platform; the Ultra 7 265KF belongs in a desktop platform with a discrete GPU.

The nearest rivals in the database confirm the positioning. The Core 5 320 sits alongside parts like the AMD Ryzen 5 1600 and Intel Core i5-1334U, with average scores within 0.7% of its 18023. The Ultra 7 265KF sits alongside the AMD Ryzen 7 8840HX and Intel Xeon 6517P, with average scores within 0.8% of its 71910. These are entirely different performance tiers.

The verdict from the recorded data is unambiguous. The Ultra 7 265KF is the higher-performing processor in every measured category. The Core 5 320 is a low-power mobile chip that trades performance for a 15 TDP envelope and integrated graphics. Anyone needing maximum compute throughput should select the Ultra 7 265KF. Anyone constrained to a mobile platform with integrated graphics would use the Core 5 320, accepting the substantial multicore penalty shown in the benchmark results.