Intel Core 7 350 vs Intel Core Ultra 7 265K Comparison

Head-to-Head Benchmarks

The benchmark data presents a decisive picture. The Intel Core Ultra 7 265K wins 16 of the 17 recorded head-to-head comparisons. The Intel Core 7 350 takes a single, narrow victory. The margin of that win is small, while the margins of the losses are substantial.

The Core 7 350's lone win comes in Cinebench R23 single-core. It scores 2046 against the Core Ultra 7 265K's 2020, a delta of 1.3%. This is a marginal difference, within run-to-run variation for most workloads. It does show that the Wildcat Lake core design, despite its lower power envelope, can match the Arrow Lake core in a pure single-threaded render task.

Every other benchmark favors the Core Ultra 7 265K, often by a wide margin. In Cinebench R15 multi-core, the Core Ultra 7 265K scores 5020 versus 1220, a 75.7% advantage. The R20 multi-core test shows a similar gap: 20918 versus 5373, a 74.3% lead. The largest multi-core delta appears in Cinebench R23, where the Core Ultra 7 265K delivers 35850 against 8030, a 77.6% difference. These results indicate a massive throughput advantage for the 20-core part.

The PassMark suite reinforces this trend. Data compression scores are 665554 for the Core Ultra 7 265K versus 143123, a 78.5% gap. Integer math shows 143242 versus 33734, a 76.4% lead. Floating point math delivers 189629 versus 42809, a 77.4% advantage. The Core Ultra 7 265K leads by 77.8% in extended instructions and by 78.2% in prime number finding. Random string sorting shows a 78.4% gap. Data encryption is 77.3% faster on the Core Ultra 7 265K.

The multi-threaded PassMark score is 58594 for the Core Ultra 7 265K versus 15170, a 74.1% lead. Physics simulation shows a 68.6% advantage, with scores of 3731 and 1173.

The single-threaded PassMark results are closer than the multi-threaded comparisons. The Core Ultra 7 265K scores 4928 against 4100, a 16.8% lead. This is a meaningful single-thread advantage, though far smaller than the multi-thread deltas. The Cinebench R15 single-core test shows the Core Ultra 7 265K ahead by 58.8%, scoring 708 versus 292. The R20 single-core test shows a 74.3% lead, with 2953 versus 758. These single-core Cinebench deltas are surprisingly large compared to the PassMark single-thread result, suggesting differences in how each test exercises the core.

The average benchmark score tells the same story. The Core Ultra 7 265K averages 70879, while the Core 7 350 averages 17779. The Core Ultra 7 265K sits at the 94th percentile of all CPUs in the database; the Core 7 350 sits at the 71st percentile.

Architecture Differences

The two processors belong to different Intel families. The Core 7 350 uses the Wildcat Lake codename and is listed under the Core 5 (Wildcat Lake) generation. The Core Ultra 7 265K uses the Arrow Lake-S codename and belongs to the Ultra 7 (Arrow Lake) generation, part of the Core Ultra Series 2.

Both chips are built on a 3 nm process node. The foundry differs: the Core 7 350 is fabricated by Intel, while the Core Ultra 7 265K is fabricated by TSMC. The Core Ultra 7 265K carries a transistor count of 17,800 million on a 243 mm² die. The Core 7 350 lists no transistor count or die size in the database.

Core and thread counts differ sharply. The Core 7 350 has 6 cores and 6 threads. The Core Ultra 7 265K has 20 cores and 20 threads. Neither part uses simultaneous multi-threading, so thread count equals core count for both.

Clock speeds favor the Core Ultra 7 265K. Its base clock is 3.90 GHz and boost clock is 5.50 GHz. The Core 7 350 has a base clock of 1.50 GHz and a boost clock of 4.80 GHz. The power envelope reflects this: the Core 7 350 is rated at 15 W TDP, the Core Ultra 7 265K at 125 W TDP.

Cache configurations differ in capacity but not in base layout. Both list 192 KB of L1 per core. The L2 cache is 2.5 MB per core on the Core 7 350 and 3 MB per core on the Core Ultra 7 265K. Shared L3 is 6 MB on the Core 7 350 and 30 MB on the Core Ultra 7 265K.

Memory support diverges. The Core 7 350 supports DDR5 and LPDDR5X over a single-channel bus with 59.7 GB/s bandwidth. The Core Ultra 7 265K supports DDR5 over a dual-channel bus with 102.4 GB/s bandwidth. ECC memory is not supported on the Core 7 350 but is supported on the Core Ultra 7 265K.

PCIe connectivity differs by generation and lane count. The Core 7 350 provides Gen 4 with 6 CPU lanes. The Core Ultra 7 265K provides Gen 5 with 20 CPU lanes.

Integrated graphics also differ. The Core 7 350 uses Intel Xe3 Graphics with 2 Xe cores. The Core Ultra 7 265K uses Arc Xe-LPG Graphics with 64 execution units.

The sockets are incompatible. The Core 7 350 uses Intel BGA 1516, a mobile package. The Core Ultra 7 265K uses Intel Socket 1851, a desktop socket. The market segments match these sockets: mobile for the Core 7 350, desktop for the Core Ultra 7 265K.

The multiplier is locked on the Core 7 350 and unlocked on the Core Ultra 7 265K. The release dates differ considerably: the Core 7 350 launched on 2026-04-15, while the Core Ultra 7 265K launched on 2024-10-23.

FAQ

Q: Which processor wins more benchmarks?

A: The Intel Core Ultra 7 265K wins 16 of 17 recorded head-to-head tests. The Intel Core 7 350 wins one test, Cinebench R23 single-core, by a 1.3% margin.

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

A: The Core Ultra 7 265K leads by 75.7% in Cinebench R15 multi-core, 74.3% in R20 multi-core, and 77.6% in R23 multi-core. PassMark multi-thread shows a 74.1% lead.

Q: Is the Core 7 350 competitive in single-threaded workloads?

A: It wins Cinebench R23 single-core by 1.3%, but loses single-threaded PassMark by 16.8%, R15 single-core by 58.8%, and R20 single-core by 74.3%.

Q: What is the core and thread configuration of each chip?

A: The Core 7 350 has 6 cores and 6 threads. The Core Ultra 7 265K has 20 cores and 20 threads. Neither supports simultaneous multi-threading.

Q: Do the two processors use the same socket?

A: No. The Core 7 350 uses Intel BGA 1516, while the Core Ultra 7 265K uses Intel Socket 1851. They are not interchangeable.

Q: What memory bandwidth does each processor support?

A: The Core 7 350 has a single-channel bus with 59.7 GB/s bandwidth. The Core Ultra 7 265K has a dual-channel bus with 102.4 GB/s bandwidth.

Specification Differences

The following table lists only the fields where the two processors differ, based on the database records.

| Field | Intel Core 7 350 | Intel Core Ultra 7 265K |

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

| Series | None listed | Core Ultra Series 2 |

| Cores | 6 | 20 |

| Threads | 6 | 20 |

| Base Clock | 1.50 GHz | 3.90 GHz |

| Boost Clock | 4.80 GHz | 5.50 GHz |

| TDP | 15 W | 125 W |

| Socket | Intel BGA 1516 | Intel Socket 1851 |

| Codename | Wildcat Lake | Arrow Lake-S |

| Generation | Core 5 (Wildcat Lake) | Ultra 7 (Arrow Lake) |

| Foundry | Intel | TSMC |

| Transistors | Not listed | 17,800 million |

| Die Size | Not listed | 243 mm² |

| L2 Cache | 2.5 MB (per core) | 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 |

| ECC Memory | Not supported | Supported |

| 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 |

| Market Segment | Mobile | Desktop |

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

| Launch MSRP | $469 | $394 |

| Multiplier Unlocked | No | Yes |

| Part Number | SAE3F | SRQCW |

Fields not listed here, such as L1 cache layout, process node, and manufacturing status, are identical or not recorded for both parts.

The Verdict

The recorded data separates these two processors into distinct roles. The Intel Core Ultra 7 265K is the dominant performer in nearly every measured category. Its 20 cores, 30 MB of L3 cache, dual-channel memory, and 102.4 GB/s bandwidth support multi-threaded workloads with a 74% to 78% advantage over the Core 7 350 across Cinebench and PassMark tests. It also leads in single-threaded PassMark by 16.8% and in Cinebench R15 and R20 single-core by wide margins. The 94th percentile ranking places it among the faster CPUs in the database.

The Intel Core 7 350 serves a different purpose. Its 6 cores, 15 W TDP, single-channel memory, and mobile BGA socket indicate a low-power portable design. It manages a narrow Cinebench R23 single-core win, which suggests the Wildcat Lake core has competitive single-thread efficiency. Its 71st percentile ranking is respectable for a mobile part, but its average benchmark score of 17779 is roughly one quarter of the Core Ultra 7 265K's 70879.

The platform differences reinforce the performance split. The Core Ultra 7 265K offers Gen 5 PCIe with 20 lanes, ECC memory support, an unlocked multiplier, and a desktop socket. The Core 7 350 offers Gen 4 PCIe with 6 lanes, no ECC support, a locked multiplier, and a mobile package. The release dates differ by roughly 18 months, with the Core Ultra 7 265K launching first.

The data indicates the Core Ultra 7 265K is the choice for desktop users who need maximum throughput in rendering, encryption, compression, and math-heavy tasks. Its 16 wins and 94th percentile ranking confirm it as the higher-tier processor. The Core 7 350 is the choice for mobile systems where the 15 W TDP and compact BGA package matter more than raw performance. Its single benchmark win and 71st percentile ranking show it is competitive in its segment, but it cannot match the Core Ultra 7 265K in the tests recorded here.