Intel Core Ultra 7 270K Plus vs Intel Xeon 6520P Comparison

The Intel Xeon 6520P and Intel Core Ultra 7 270K Plus sit at the same 96th percentile of all CPUs, with average benchmark scores of 93786 and 93785, respectively. This near-identical aggregate performance masks two very different designs: a 24-core/48-thread server processor built for memory bandwidth and sustained throughput, and a 24-core/24-thread desktop chip with a high boost clock and integrated graphics. The head-to-head data shows 10 wins for the Core Ultra 7 270K Plus and 7 for the Xeon 6520P, but the margin and nature of those wins tell the real story.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Xeon 6520P scores 93786, while the Intel Core Ultra 7 270K Plus scores 93785. The delta is 0%, meaning they are effectively tied in aggregate performance.

Q: How do the two compare in Cinebench R23 multi-core?

A: The Xeon 6520P wins with a score of 53495 versus 44253 for the Core Ultra 7 270K Plus, a 20.9% advantage. This is a significant margin in a modern multi-threaded render workload.

Q: Which chip has better single-thread performance?

A: The Core Ultra 7 270K Plus wins PassMark single-thread with 5068 versus 3356, a 33.8% lead. However, the Xeon 6520P wins Cinebench R23 single-core with 7552 versus 2439, a 209.6% margin, which is an outlier in the data.

Q: What is the difference in memory bandwidth?

A: The Xeon 6520P supports eight-channel DDR5 with 409.6 GB/s bandwidth, while the Core Ultra 7 270K Plus uses dual-channel DDR5 with 115.2 GB/s. The Xeon has a 294.4 GB/s raw bandwidth advantage.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Xeon 6520P and the Intel Core Ultra 7 270K Plus list ECC memory support as true in their specifications.

Q: Which processor has integrated graphics?

A: The Intel Core Ultra 7 270K Plus includes Arc Xe-LPG Graphics 64EU. The Intel Xeon 6520P lists integrated graphics as N/A.

Architecture Differences

The two processors come from different Intel lineups with fundamentally different design goals. The Xeon 6520P is built on Granite Rapids architecture with a 5 nm process node from Intel's own foundry, while the Core Ultra 7 270K Plus uses Arrow Lake Refresh architecture on a 3 nm node fabricated by TSMC. The Xeon uses the Intel Socket 4710 platform, whereas the Core Ultra 7 270K Plus uses Intel Socket 1851.

Core counts are identical at 24, but threading diverges sharply: the Xeon 6520P supports 48 threads via Hyper-Threading, while the Core Ultra 7 270K Plus has 24 threads with no SMT. Clock speeds reflect their roles: the Xeon 6520P runs at a 2.40 GHz base and 4.00 GHz boost, while the Core Ultra 7 270K Plus runs at 3.70 GHz base and 5.50 GHz boost. The desktop chip's higher clocks come with a 125 W TDP versus 210 W for the server part.

Cache hierarchies are notably different. The Xeon 6520P has 112 KB of L1 per core, 2 MB of L2 per core, and a massive 144 MB of shared L3 cache. The Core Ultra 7 270K Plus counters with 192 KB L1 per core, 3 MB L2 per core, but only 36 MB of shared L3. The Xeon's 144 MB L3 is four times larger, which helps explain its lead in certain multi-threaded workloads.

PCIe connectivity also differs substantially. The Xeon 6520P provides Gen 5 with 88 lanes (CPU only), while the Core Ultra 7 270K Plus offers Gen 5 with 20 lanes. Memory channels follow the same pattern: the Xeon 6520P uses eight-channel DDR5 with 409.6 GB/s bandwidth, versus dual-channel DDR5 at 115.2 GB/s for the Core Ultra 7 270K Plus. The die size difference is stark — 598 mm² for the Xeon versus 243 mm² for the Core Ultra 7 270K Plus — and the desktop chip includes 17,800 million transistors.

The Verdict

The data points to a clear split based on workload type. Choose the Intel Xeon 6520P for sustained multi-threaded server workloads where memory bandwidth and large L3 cache matter. Its 20.9% lead in Cinebench R23 multi-core and 21.8% advantage in PassMark integer math demonstrate strength in compute-heavy tasks. The 77.4% win in PassMark physics further reinforces this pattern. The Xeon also wins in data compression by 4.6% and extended instructions by 1.7%, showing broad capability in server-style processing.

Choose the Intel Core Ultra 7 270K Plus for desktop workloads that favor high clock speeds and floating-point throughput. It leads by 33.8% in PassMark single-thread, 29% in floating-point math, and 23.5% in data encryption. The 8.2% advantages in both Cinebench R20 multi-core and PassMark multithread, plus a 14.5% win in prime number finding, make it the better all-around desktop option. The unlocked multiplier on the Core Ultra 7 270K Plus adds flexibility for those who adjust clock settings.

For users who need integrated graphics, the choice is simple: the Core Ultra 7 270K Plus has Arc Xe-LPG Graphics 64EU, while the Xeon 6520P has none. For those who need maximum memory bandwidth or PCIe lane count, the Xeon 6520P is the only option with eight-channel memory and 88 lanes.

Specification Differences

The two processors differ in nearly every major specification except core count and ECC support. The Xeon 6520P has 48 threads versus 24 for the Core Ultra 7 270K Plus. Base clock is 2.40 GHz for the Xeon versus 3.70 GHz for the Core Ultra 7 270K Plus, and boost clock is 4.00 GHz versus 5.50 GHz. TDP is 210 W versus 125 W.

Socket platforms are incompatible: Intel Socket 4710 for the Xeon 6520P, Intel Socket 1851 for the Core Ultra 7 270K Plus. Process nodes differ at 5 nm (Intel) versus 3 nm (TSMC), with die sizes of 598 mm² and 243 mm² respectively. The Core Ultra 7 270K Plus lists 17,800 million transistors; the Xeon 6520P does not list a transistor count.

Cache configurations diverge: L1 is 112 KB per core for the Xeon versus 192 KB per core for the Core Ultra 7 270K Plus; L2 is 2 MB per core versus 3 MB per core; L3 is 144 MB shared versus 36 MB shared. Memory bandwidth is 409.6 GB/s versus 115.2 GB/s. PCIe lanes are 88 versus 20, both Gen 5. Integrated graphics exist only on the Core Ultra 7 270K Plus. The Xeon 6520P targets Server/Workstation, while the Core Ultra 7 270K Plus targets Desktop. The Xeon 6520P has a locked multiplier; the Core Ultra 7 270K Plus is unlocked. Release dates differ: 2025-02-23 for the Xeon, 2026-03-10 for the Core Ultra 7 270K Plus. Launch MSRP is $1295 for the Xeon 6520P and $299 for the Core Ultra 7 270K Plus.

Head-to-Head Benchmarks

The largest single win belongs to the Intel Xeon 6520P in Cinebench R23 single-core, where it scores 7552 against 2439 for the Core Ultra 7 270K Plus, a 209.6% margin. This is an unusual result given the desktop chip's higher boost clock, but the data is unambiguous. The Xeon also wins Cinebench R15 single-core by 115% (761 versus 354), suggesting a pattern in older Cinebench versions. In Cinebench R23 multi-core, the Xeon leads 53495 to 44253, a 20.9% advantage that aligns with its 48-thread count.

The Core Ultra 7 270K Plus takes its biggest win in PassMark single-thread, scoring 5068 versus 3356, a 33.8% lead. It also wins PassMark floating-point math by 29% (229491 versus 162862) and data encryption by 23.5% (59097 versus 45188). In Cinebench R20, the Core Ultra 7 270K Plus wins both multi-core (24461 versus 22467) and single-core (3453 versus 3171) by 8.2% each. PassMark multithread also goes to the Core Ultra 7 270K Plus by 8.2% (68574 versus 62936).

Other wins are closer. The Xeon 6520P takes integer math by 21.8% (214288 versus 175986), physics by 77.4% (7209 versus 4064), data compression by 4.6% (841518 versus 804322), and extended instructions by 1.7% (64557 versus 63506). The Core Ultra 7 270K Plus wins prime number finding by 14.5% (615 versus 526) and random string sorting by 1.2% (96945 versus 95736). The aggregate picture shows the Xeon dominating in integer-heavy and cache-dependent tasks, while the Core Ultra 7 270K Plus excels in floating-point, encryption, and single-threaded work.

Where Each One Wins

The Intel Xeon 6520P wins in scenarios that demand raw multi-threaded compute and large data sets. Its 144 MB L3 cache and 409.6 GB/s memory bandwidth provide a foundation for workloads like Cinebench R23 multi-core, where it leads by 20.9%. The 21.8% win in integer math and 77.4% win in physics point to simulation and calculation tasks. Data compression (4.6% lead) and extended instructions (1.7% lead) round out a profile suited for server virtualization, database processing, and scientific computing. The 48 threads give it a structural advantage in heavily parallel workloads, even when the per-core clock is lower.

The Intel Core Ultra 7 270K Plus wins in desktop-oriented tasks that favor high clock speeds and modern instruction efficiency. Its 33.8% lead in PassMark single-thread makes it the better choice for everyday responsiveness and lightly threaded applications. The 29% margin in floating-point math suggests strength in graphics rendering, audio processing, and scientific floating-point workloads. Data encryption at 23.5% ahead makes it preferable for security-focused tasks. The 8.2% wins in Cinebench R20 multi-core and PassMark multithread show it can hold its own in moderately parallel desktop workloads. Prime number finding (14.5% lead) and random string sorting (1.2% lead) round out a package that suits content creation, development, and general desktop use. The integrated Arc Xe-LPG Graphics 64EU means users can run a display without a discrete GPU, which the Xeon 6520P cannot do. The unlocked multiplier also gives the Core Ultra 7 270K Plus headroom for clock adjustment, though the data does not quantify overclocking results.