Intel Core 7 253PTE vs Intel Core Ultra 7 265K Comparison

Head-to-Head Benchmarks

The benchmark data shows a decisive advantage for the Intel Core Ultra 7 265K across nearly every measured workload. Of the 17 head-to-head comparisons recorded, the Core Ultra 7 265K wins 16, while the Intel Core 7 253PTE secures a single victory.

The most lopsided result comes from Cinebench R15 and R20 multi-core tests, where the Core Ultra 7 265K leads by 57.3% in both cases. In Cinebench R15 multi-core, the Core Ultra 7 265K scores 5020 against 2144 for the Core 7 253PTE. The R20 multi-core test shows a similar pattern: 20918 versus 8935. The same 57.3% deficit appears in single-core R15 and R20 results, with scores of 708 versus 302 and 2953 versus 1261 respectively.

PassMark workloads reinforce the multi-core dominance. The data compression test shows the Core Ultra 7 265K at 665554, a 58.6% advantage over the Core 7 253PTE's 275828. Data encryption delivers a 67.9% gap (48246 versus 15500). Extended instructions score 54333 against 17099, a 68.5% difference. Find prime numbers shows the largest relative gap at 83.3%, with scores of 491 versus 82. Floating point math favors the Core Ultra 7 265K by 64.6% (189629 versus 67209), and physics tests show a 64.7% lead (3731 versus 1318).

The Core 7 253PTE's sole win comes in Cinebench R23 single-core, where it scores 3003 against 2020 for the Core Ultra 7 265K, a 48.7% advantage. This result stands out because every other single-threaded measurement favors the Core Ultra 7 265K. PassMark single-thread tests show the Core Ultra 7 265K ahead by 23.0% (4928 versus 3794). The R15 and R20 single-core tests also favor the Core Ultra 7 265K by 57.3%. The R23 single-core anomaly suggests a workload-specific behavior rather than a general single-thread advantage.

In multi-threaded PassMark, the Core Ultra 7 265K scores 58594 against 25031, a 57.3% lead. Integer math shows a closer contest at 16.5% (143242 versus 119552), the smallest margin of any Core Ultra 7 265K victory. Random string sorting favors the Core Ultra 7 265K by 64.6% (79752 versus 28227).

The average benchmark score places the Core Ultra 7 265K at 70879 against 34962 for the Core 7 253PTE. The Core Ultra 7 265K sits at the 94th percentile of all CPUs in the database, while the Core 7 253PTE ranks at the 84th percentile. The nearest rival data confirms the positioning: the Core 7 253PTE's closest competitor is the Intel Core i7-13800H with an average score of 34988 and a delta of -0.1%, while the Core Ultra 7 265K's nearest rival is the Intel Xeon 6511P at 71051 with a delta of -0.2%.

Architecture Differences

The two processors diverge fundamentally in their underlying designs. The Intel Core 7 253PTE uses the Bartlett Lake codename with a 10 nm process node fabricated by Intel. The Intel Core Ultra 7 265K belongs to the Core Ultra Series 2, uses the Arrow Lake architecture with the Arrow Lake-S codename, and is built on a 3 nm process by TSMC.

Core counts differ substantially. The Core 7 253PTE contains 10 cores with 20 threads, while the Core Ultra 7 265K packs 20 cores with 20 threads. The Core Ultra 7 265K achieves its thread count through a different core topology, as indicated by the equal thread count despite double the cores. The Bartlett Lake part relies on 10 physical cores with hyperthreading, while Arrow Lake uses 20 physical cores without hyperthreading.

Cache hierarchies reflect the architectural split. The Core 7 253PTE provides 80 KB of L1 cache per core and 2 MB of L2 per core, with 33 MB of shared L3. The Core Ultra 7 265K offers 192 KB of L1 per core and 3 MB of L2 per core, with 30 MB of shared L3. The Core Ultra 7 265K has more per-core cache at every level, but the Core 7 253PTE carries a larger shared L3 pool.

Clock behavior differs notably. The Core 7 253PTE has a base clock of 1.80 GHz and a boost clock of 5.40 GHz. The Core Ultra 7 265K starts at 3.90 GHz base and reaches 5.50 GHz boost. The Core Ultra 7 265K holds a higher base clock by a wide margin, while the boost clocks land close together.

Power envelopes separate the two clearly. The Core 7 253PTE carries a 45 W TDP, while the Core Ultra 7 265K is rated at 125 W. The 125 W part delivers the higher sustained performance in the benchmark data, as expected from the power allocation.

Memory support differs in scope. The Core 7 253PTE supports both DDR4 and DDR5 memory across a dual-channel bus, with 89.6 GB/s of bandwidth. The Core Ultra 7 265K supports DDR5 only, also dual-channel, with 102.4 GB/s of bandwidth. Both support ECC memory.

PCIe connectivity differs. The Core 7 253PTE provides Gen 5 with 16 lanes from the CPU. The Core Ultra 7 265K provides Gen 5 with 20 lanes. Integrated graphics also differ: the Core 7 253PTE uses UHD Graphics 730, while the Core Ultra 7 265K uses Arc Xe-LPG Graphics 64EU.

Sockets are incompatible. The Core 7 253PTE uses Intel Socket 1700, while the Core Ultra 7 265K uses Intel Socket 1851. The multiplier is locked on the Core 7 253PTE and unlocked on the Core Ultra 7 265K. The Core Ultra 7 265K also carries a transistor count of 17,800 million on a 243 mm² die, while the Core 7 253PTE has no recorded transistor or die size data.

FAQ

Q: Which processor wins the majority of benchmark comparisons?

A: The Intel Core Ultra 7 265K wins 16 of the 17 recorded head-to-head benchmarks. The Intel Core 7 253PTE wins only one, the Cinebench R23 single-core test.

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

A: The Core Ultra 7 265K leads by 57.3% in both Cinebench R15 and R20 multi-core tests. In Cinebench R23 multi-core, the lead is 40.7%, with scores of 35850 versus 21276.

Q: Does the Core 7 253PTE have any single-thread advantage?

A: The R23 single-core test shows the Core 7 253PTE ahead by 48.7% (3003 versus 2020). However, R15 single-core, R20 single-core, and PassMark single-thread tests all favor the Core Ultra 7 265K, so the R23 result appears workload-specific.

Q: What are the core and thread counts for each processor?

A: The Intel Core 7 253PTE has 10 cores and 20 threads. The Intel Core Ultra 7 265K has 20 cores and 20 threads.

Q: What process nodes and foundries are used?

A: The Core 7 253PTE uses a 10 nm process from Intel. The Core Ultra 7 265K uses a 3 nm process from TSMC.

Q: Do both processors support ECC memory?

A: Yes, both the Core 7 253PTE and the Core Ultra 7 265K support ECC memory.

The Verdict

The recorded data shows a clear performance hierarchy. The Intel Core Ultra 7 265K delivers substantially higher scores in nearly all workloads, with average benchmark score of 70879 versus 34962 for the Core 7 253PTE. The Core Ultra 7 265K also ranks higher at the 94th percentile of all CPUs, compared to the 84th percentile for the Core 7 253PTE.

The Core Ultra 7 265K is the appropriate choice for workloads that benefit from multi-threaded throughput, as demonstrated by its 57.3% lead in Cinebench R15 and R20 multi-core, 58.6% lead in data compression, and 64.6% lead in floating point math. It also leads in integer math by 16.5%, a smaller but still consistent margin. The 20-core configuration with 3 MB of L2 per core and the 125 W TDP support sustained heavy workloads.

The Core 7 253PTE presents a different trade-off. Its 45 W TDP and 10-core configuration produce a single notable result: the 48.7% lead in Cinebench R23 single-core. For workloads that closely mirror that specific test, the Core 7 253PTE shows a measurable advantage. However, the broader single-thread data contradicts that result, with the Core Ultra 7 265K leading by 57.3% in R15 and R20 single-core and 23.0% in PassMark single-thread.

The Core 7 253PTE also offers memory flexibility with DDR4 and DDR5 support, which may matter for platforms that retain older DDR4 modules. Its 33 MB of shared L3 exceeds the 30 MB on the Core Ultra 7 265K. The 45 W TDP makes it suitable for thermally constrained systems, while the Core Ultra 7 265K at 125 W requires more substantial cooling.

Socket compatibility separates the two completely. The Core 7 253PTE fits Intel Socket 1700 boards, while the Core Ultra 7 265K requires Intel Socket 1851. The unlocked multiplier on the Core Ultra 7 265K enables overclocking, while the Core 7 253PTE has a locked multiplier.

For users prioritizing peak performance across the widest range of benchmarks, the data points to the Intel Core Ultra 7 265K. For users with a Socket 1700 platform, a 45 W power budget, or a workload that specifically matches the Cinebench R23 single-core pattern, the Intel Core 7 253PTE remains a viable option based on the recorded results.

Specification Differences

| Specification | Intel Core 7 253PTE | Intel Core Ultra 7 265K |

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

| Cores | 10 | 20 |

| Threads | 20 | 20 |

| Base Clock | 1.80 GHz | 3.90 GHz |

| Boost Clock | 5.40 GHz | 5.50 GHz |

| TDP | 45 W | 125 W |

| Socket | Intel Socket 1700 | Intel Socket 1851 |

| Codename | Bartlett Lake | Arrow Lake-S |

| Process Node | 10 nm | 3 nm |

| Foundry | Intel | TSMC |

| Transistors | Not recorded | 17,800 million |

| Die Size | Not recorded | 243 mm² |

| L1 Cache | 80 KB (per core) | 192 KB (per core) |

| L2 Cache | 2 MB (per core) | 3 MB (per core) |

| L3 Cache | 33 MB (shared) | 30 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5 |

| Memory Bandwidth | 89.6 GB/s | 102.4 GB/s |

| PCIe | Gen 5, 16 Lanes (CPU only) | Gen 5, 20 Lanes (CPU only) |

| Integrated Graphics | UHD Graphics 730 | Arc Xe-LPG Graphics 64EU |

| Multiplier | Locked | Unlocked |

| Launch MSRP | $384 | $394 |

| Release Date | 2026-03-08 | 2024-10-23 |

| Part Number | SA4QK | SRQCW |