Intel Core Ultra 7 265K vs Intel Xeon 6724P Comparison

The Intel Xeon 6724P and Intel Core Ultra 7 265K are both high-performance Intel processors, but they are engineered for entirely different arenas. The data shows a clear split: the Xeon 6724P dominates in specific server-class workloads, while the Core Ultra 7 265K wins the majority of general and desktop-oriented tasks. The benchmark results indicate that the Core Ultra 7 265K takes 13 of the 17 head-to-head comparisons, but the Xeon 6724P’s victories are decisive in the areas that matter most for enterprise infrastructure. This analysis breaks down where each processor excels, the architectural reasons behind those splits, and which user should choose which.

Where Each One Wins

The Core Ultra 7 265K is the clear victor in single-threaded performance and everyday compute. Its lead in the PassMark single-thread test is substantial, scoring 4928 against the Xeon’s 3279, a 33.5% advantage. This dominance extends to floating-point math, where the Ultra 7 scores 189629 versus 135404 (a 28.6% lead), and data encryption, where it hits 48246 against the Xeon’s 34332 (a 28.8% advantage). The Ultra 7 also wins in multi-threaded Cinebench tests, including the R15 and R20 variants, by a consistent 12.4% margin, and in the PassMark multithread test with a score of 58594 versus 51345. For any workload that relies on high clock speeds, quick response times, or heavy FPU usage, the Ultra 7 is the definitive choice.

The Xeon 6724P wins decisively in a few specific, high-value areas. Its most striking victory is in Cinebench R23 single-core, where it scores 6161 against the Ultra 7’s 2020, a massive 205% lead. This is an outlier compared to other single-thread tests, but it highlights a specific optimization. More importantly, the Xeon wins the Cinebench R23 multi-core test with a score of 43643 versus 35850, a 21.7% advantage. It also leads in PassMark integer math (172216 vs 143242, a 20.2% lead) and in the PassMark physics test (5004 vs 3731, a 34.1% lead). These wins point to a processor that excels in sustained, integer-heavy, and physics-simulation workloads, typical of server-side rendering and scientific computing.

The remaining wins for the Ultra 7 include data compression (665554 vs 627185), find prime numbers (491 vs 372), random string sorting (79752 vs 68477), and extended instructions (54333 vs 54101), the last being nearly a tie. The overall picture is that the Ultra 7 is the more versatile processor for general use, while the Xeon is a specialist that wins where its architecture provides a unique edge.

Architecture Differences

The two CPUs are built on fundamentally different foundations. The Xeon 6724P uses the Granite Rapids architecture, fabricated on Intel’s 5 nm process node, and is part of the Xeon 6 (Granite Rapids-SP) generation. The Core Ultra 7 265K uses the Arrow Lake architecture, built on TSMC’s 3 nm node, and is part of the Core Ultra Series 2. This node advantage for the Ultra 7 contributes to its higher clock speeds: it has a base clock of 3.90 GHz and a boost clock of 5.50 GHz, compared to the Xeon’s 3.60 GHz base and 4.30 GHz boost.

Core configurations differ significantly. The Xeon has 16 cores and 32 threads, while the Ultra 7 has 20 cores and 20 threads. The Xeon relies on Hyper-Threading to double its thread count, while the Ultra 7 does not. The Ultra 7 compensates with a higher physical core count and much higher clock speeds. Cache hierarchies also differ: the Xeon offers 72 MB of shared L3 cache, while the Ultra 7 has only 30 MB. However, the Ultra 7 has larger per-core L1 (192 KB vs 112 KB) and L2 (3 MB vs 2 MB) caches.

Memory and I/O are where the server/workstation distinction becomes clear. The Xeon supports eight-channel DDR5 memory with a massive 409.6 GB/s of bandwidth, while the Ultra 7 is dual-channel with 102.4 GB/s. The Xeon also provides 88 PCIe Gen 5 lanes (CPU only), compared to 20 lanes on the Ultra 7. Both support ECC memory, but the Ultra 7 includes integrated Arc Xe-LPG Graphics 64EU, while the Xeon has none. The Xeon uses Socket 4710 and has a 210 W TDP, while the Ultra 7 uses Socket 1851 with a 125 W TDP and an unlocked multiplier for overclocking.

The Verdict

The data is unambiguous: the Intel Core Ultra 7 265K is the better processor for the vast majority of users. It wins 13 of 17 head-to-head benchmarks, including all the Cinebench R15 and R20 tests, all PassMark tests except for integer math and physics, and all single-threaded tests except for the anomalous Cinebench R23 single-core result. Its higher clock speeds and superior floating-point performance make it the obvious choice for desktop computing, gaming, content creation, and any application that benefits from high single-thread performance.

The Intel Xeon 6724P is the better choice for a very specific, narrow set of workloads. Its wins in Cinebench R23 multi-core, integer math, and physics suggest it is optimized for server-side tasks, particularly those involving complex calculations and data manipulation that can leverage its massive memory bandwidth and higher thread count. The 205% lead in Cinebench R23 single-core is a statistical anomaly but points to a specialized instruction path that could be valuable in specific enterprise applications.

For a desktop user or a professional running a workstation for general productivity, the Ultra 7 265K is the only rational pick. For a data center deploying a server that runs physics simulations or integer-heavy database workloads, the Xeon 6724P’s unique advantages, combined with its support for eight-channel memory and 88 PCIe lanes, make it the data-driven choice. The Xeon’s 94th percentile ranking versus all CPUs is matched by the Ultra 7, but the Ultra 7 achieves this with a 125 W TDP and a launch MSRP of $394, while the Xeon’s cost is significantly higher at a $3622 launch MSRP.

FAQ

Q: Which processor is faster in single-core performance?

A: The Intel Core Ultra 7 265K wins the PassMark single-thread test decisively, scoring 4928 versus the Xeon 6724P’s 3279, a 33.5% advantage. However, the Xeon wins the Cinebench R23 single-core test with a 205% lead, making the overall single-core picture test-dependent.

Q: Does the Xeon 6724P have more cores than the Core Ultra 7 265K?

A: No. The Xeon 6724P has 16 cores and 32 threads, while the Core Ultra 7 265K has 20 cores and 20 threads. The Xeon uses Hyper-Threading to double its thread count, while the Ultra 7 does not.

Q: Which CPU is better for memory-intensive server applications?

A: The Intel Xeon 6724P is better for memory-intensive applications. It supports eight-channel DDR5 memory with a bandwidth of 409.6 GB/s, compared to the Core Ultra 7 265K’s dual-channel support and 102.4 GB/s bandwidth.

Q: What are the clock speed differences between the two?

A: The Core Ultra 7 265K has a base clock of 3.90 GHz and a boost clock of 5.50 GHz. The Xeon 6724P has a lower base clock of 3.60 GHz and a boost clock of 4.30 GHz.

Q: Which processor has a larger L3 cache?

A: The Xeon 6724P has a significantly larger shared L3 cache of 72 MB, compared to the Core Ultra 7 265K’s 30 MB. However, the Ultra 7 has larger per-core L1 and L2 caches.

Q: Are both processors unlocked for overclocking?

A: No. The Core Ultra 7 265K has an unlocked multiplier, while the Xeon 6724P is locked.

Head-to-Head Benchmarks

The most significant win for the Intel Xeon 6724P is in the Cinebench R23 multi-core test, where it scores 43643 against the Ultra 7’s 35850, a 21.7% lead. This is a strong indicator of sustained multi-threaded performance. The Xeon also wins PassMark integer math with a score of 172216 versus 143242, a 20.2% margin, and PassMark physics with a 34.1% lead (5004 vs 3731). The Cinebench R23 single-core result is the largest delta of all, with the Xeon scoring 6161 against the Ultra 7’s 2020, a 205% difference.

The Core Ultra 7 265K’s largest wins come in single-threaded and floating-point workloads. It leads PassMark single-thread by 33.5% (4928 vs 3279) and PassMark floating-point math by 28.6% (189629 vs 135404). It also wins data encryption by 28.8% (48246 vs 34332) and find prime numbers by 24.2% (491 vs 372). In the Cinebench R15 and R20 tests, both single and multi-core, the Ultra 7 wins consistently by 12.4%. It also wins PassMark multithread by 12.4% (58594 vs 51345), data compression by 5.8% (665554 vs 627185), and random string sorting by 14.1% (79752 vs 68477). The extended instructions test is nearly a tie, with the Ultra 7 winning by just 0.4% (54333 vs 54101).

Specification Differences

The core and thread counts are a primary differentiator: the Xeon 6724P offers 16 cores and 32 threads, while the Core Ultra 7 265K offers 20 cores and 20 threads. Clock speeds favor the Ultra 7, with a 3.90 GHz base and 5.50 GHz boost versus the Xeon’s 3.60 GHz base and 4.30 GHz boost. The TDP also differs significantly, with the Xeon rated at 210 W and the Ultra 7 at 125 W.

Memory support is a major split: the Xeon uses eight-channel DDR5 with 409.6 GB/s bandwidth, whereas the Ultra 7 uses dual-channel DDR5 with 102.4 GB/s. PCIe lane count is another major difference, with the Xeon providing 88 Gen 5 lanes versus the Ultra 7’s 20 lanes. The cache hierarchy differs, with the Xeon having 72 MB of shared L3 but 112 KB L1 and 2 MB L2 per core, while the Ultra 7 has 30 MB of shared L3 but 192 KB L1 and 3 MB L2 per core. The Xeon has no integrated graphics, while the Ultra 7 includes Arc Xe-LPG Graphics 64EU. The socket types are incompatible: the Xeon uses Intel Socket 4710, and the Ultra 7 uses Intel Socket 1851. The Ultra 7 is unlocked for overclocking, while the Xeon is not. Finally, the Xeon is built on Intel’s 5 nm node, while the Ultra 7 is built on TSMC’s 3 nm node.