TurboVS
Intel Xeon 6527P
Intel Xeon 6730P

Intel Xeon 6527P Intel Xeon 6730P

Overview

When evaluating two of Intel's high-performance server processors, the Intel Xeon 6527P and the Intel Xeon 6730P present genuinely different approaches to workload priorities. Both chips share the same 3 nm process, PCIe 5 support, and an identical memory platform, yet they diverge sharply on core count, cache size, and thermal characteristics. This comparison examines every specification to help you determine which processor best fits your infrastructure needs.

Common Features

  • ✓ Both processors are manufactured on a 3 nm semiconductor process.
  • ✓ Both support PCIe version 5.
  • ✓ Both processors support 64-bit computing.
  • ✓ Neither processor includes integrated graphics.
  • ✓ Both share an L2 cache of 2 MB per core.
  • ✓ Neither processor has an unlocked multiplier.
  • ✓ Both support Turbo Boost version 2.
  • ✓ Both processors support ECC memory.
  • ✓ Both use DDR5 memory.
  • ✓ Both support a maximum RAM speed of 6400 MHz.
  • ✓ Both support a maximum memory amount of 4000 GB.
  • ✓ Both feature 8 memory channels.
  • ✓ Both have a bus transfer rate of 24 GT/s.
  • ✓ Both processors use multithreading.
  • ✓ Both support the same instruction sets: MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2.
  • ✓ Both processors include NX bit support.

Main Differences

  • • Thermal Design Power (TDP) is 255W on the Intel Xeon 6527P and 250W on the Intel Xeon 6730P.
  • • Maximum CPU temperature is 102 °C on the Intel Xeon 6527P and 94 °C on the Intel Xeon 6730P.
  • • CPU configuration is 24 cores at 3 GHz on the Intel Xeon 6527P and 32 cores at 2.5 GHz on the Intel Xeon 6730P.
  • • CPU threads total 48 on the Intel Xeon 6527P and 64 on the Intel Xeon 6730P.
  • • Turbo clock speed reaches 4.2 GHz on the Intel Xeon 6527P and 3.8 GHz on the Intel Xeon 6730P.
  • • L3 cache is 144 MB on the Intel Xeon 6527P and 288 MB on the Intel Xeon 6730P.
  • • L1 cache is 2688 KB on the Intel Xeon 6527P and 3584 KB on the Intel Xeon 6730P.
  • • L2 cache is 48 MB on the Intel Xeon 6527P and 64 MB on the Intel Xeon 6730P.
  • • Clock multiplier is 30 on the Intel Xeon 6527P and 25 on the Intel Xeon 6730P.
  • • L3 cache per core is 6 MB/core on the Intel Xeon 6527P and 9 MB/core on the Intel Xeon 6730P.
Specs Comparison
Intel Xeon 6527P

Intel Xeon 6527P

Intel Xeon 6730P

Intel Xeon 6730P

General info:
Thermal Design Power (TDP) 255W 250W
release date February 2025 February 2025
semiconductor size 3 nm 3 nm
PCI Express (PCIe) version 5 5
Supports 64-bit ✓ ✓
CPU temperature 102 °C 94 °C
Has integrated graphics ✕ ✕

Both the Intel Xeon 6527P and the Intel Xeon 6730P share a strong common foundation: they are built on the same 3 nm process node, support PCIe 5.0, and are fully 64-bit compatible with no integrated graphics — meaning neither requires a discrete GPU budget trade-off at the platform level. For server and workstation buyers, this parity on process and I/O generation ensures both chips benefit equally from cutting-edge bandwidth and manufacturing efficiency.

Where the two diverge meaningfully is in thermal behavior. The 6527P carries a 255W TDP against the 6730P's 250W — a negligible 5W gap that will not influence cooling decisions in practice. However, the maximum CPU temperature tells a more important story: the 6527P is rated up to 102 °C, while the 6730P tops out at 94 °C. A lower thermal ceiling on the 6730P means it operates with less thermal headroom before throttling, which can matter in dense, high-ambient-temperature rack environments where sustained performance under heat is critical.

Based strictly on this group's data, the 6527P holds a modest edge: its higher maximum operating temperature gives it greater thermal headroom, potentially sustaining peak performance longer under thermally stressful conditions — despite drawing a virtually identical amount of power. The 6730P is not disadvantaged in typical deployments, but in thermally constrained scenarios, the 6527P's 8 °C wider ceiling is a real differentiator.

Performance:
CPU speed 24 x 3 GHz 32 x 2.5 GHz
CPU threads 48 threads 64 threads
turbo clock speed 4.2GHz 3.8GHz
L3 cache 144 MB 288 MB
L1 cache 2688 KB 3584 KB
L2 cache 48 MB 64 MB
L2 core 2 MB/core 2 MB/core
clock multiplier 30 25
Has an unlocked multiplier ✕ ✕
L3 core 6 MB/core 9 MB/core
Turbo Boost version 2 2

The performance profiles of these two chips reveal a deliberate architectural tradeoff. The 6527P opts for fewer but faster cores — 24 cores at 3.0 GHz base with a 4.2 GHz turbo — while the 6730P trades clock speed for scale, offering 32 cores at 2.5 GHz base and topping out at 3.8 GHz under boost. In practice, this means the 6527P will feel snappier in single-threaded or lightly-threaded tasks, while the 6730P's 64 threads (versus 48) give it a significant throughput advantage in massively parallel workloads like virtualization, containerized environments, or high-density compute jobs.

Cache architecture further reinforces this divide. The 6730P carries a massive 288 MB L3 cache — exactly double the 6527P's 144 MB — and a higher per-core L3 ratio of 9 MB/core versus 6 MB/core. More L3 cache reduces costly trips to main memory, which is especially impactful in database workloads, large in-memory datasets, and latency-sensitive applications. The 6527P is not cache-starved by any measure, but the 6730P's cache advantage is substantial enough to matter in data-intensive scenarios.

The 6730P holds the broader performance edge for most server workloads: more cores, more threads, and dramatically more cache make it the stronger choice for throughput-oriented, parallel, or data-heavy environments. The 6527P is the right call when per-core clock speed is the critical constraint — such as legacy single-threaded applications or workloads that scale poorly across many cores — where its 400 MHz turbo advantage over the 6730P is genuinely meaningful.

Memory:
Supports ECC memory ✓ ✓
DDR memory version 5 5
RAM speed (max) 6400 MHz 6400 MHz
maximum memory amount 4000GB 4000GB
memory channels 8 8
bus transfer rate 24 GT/s 24 GT/s

Across every memory specification provided, the Intel Xeon 6527P and Intel Xeon 6730P are identical. Both support DDR5 at up to 6400 MHz, offer 8 memory channels, cap out at 4000 GB of maximum RAM, and share the same 24 GT/s bus transfer rate. ECC support is present on both, which is a baseline requirement for server-class deployments where data integrity under continuous load is non-negotiable.

The practical implications of this parity are worth underscoring. Eight memory channels with DDR5 at 6400 MHz represents a very high aggregate memory bandwidth ceiling, and the 4000 GB maximum capacity is more than sufficient for even the most memory-intensive enterprise workloads — in-memory databases, large-scale virtualization, or AI inference tasks included. Neither chip creates a memory bottleneck relative to the other.

This group is a clear tie. Memory subsystem will not be a differentiating factor in any platform decision between these two processors — buyers should look entirely to the performance and thermal groups to guide their choice.

Features:
uses multithreading ✓ ✓
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2 MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has NX bit ✓ ✓

Feature parity is total between these two chips. The Intel Xeon 6527P and Intel Xeon 6730P share an identical instruction set portfolio — including AVX2, FMA3, AES, and F16C — and both support multithreading and the NX bit for hardware-enforced security. For software compatibility and workload portability, this means any application optimized for one chip will run identically on the other without recompilation or architectural adjustments.

The included instruction sets carry real-world weight. AVX2 and FMA3 accelerate floating-point-heavy workloads like scientific computing, signal processing, and machine learning inference. AES hardware acceleration offloads encryption and decryption tasks, reducing CPU overhead in secure communications and storage scenarios. F16C adds native half-precision float conversion, relevant in AI and media pipelines. Both processors bring all of this to the table equally.

This group is an unambiguous tie. There is no feature-level differentiator here that should influence a purchasing decision — software compatibility, instruction set support, and security features are fully equivalent across both chips.

Comparison Summary & Verdict

After a thorough review of the specifications, both processors serve distinct roles within Intel's Xeon 6 lineup. The Intel Xeon 6527P, with its higher turbo clock speed of 4.2 GHz and higher clock multiplier of 30, is better suited for workloads that benefit from faster single-core throughput and slightly higher thermal headroom at 102 °C. In contrast, the Intel Xeon 6730P delivers a broader computational footprint with 32 cores, 64 threads, and a massive 288 MB L3 cache — double that of the 6527P — making it the stronger choice for parallelized, cache-sensitive, or memory-intensive enterprise workloads. Both processors share the same advanced memory platform, including DDR5 at 6400 MHz and 8 memory channels, so the decision ultimately hinges on whether your priority is peak single-thread speed or raw multi-threaded throughput and cache capacity.

Intel Xeon 6527P
Buy Intel Xeon 6527P if...

Choose the Intel Xeon 6527P if your workloads demand higher turbo clock speeds of up to 4.2 GHz and you prioritize single-threaded performance over raw core count.

Intel Xeon 6730P
Buy Intel Xeon 6730P if...

Choose the Intel Xeon 6730P if your applications benefit from more cores, more threads, and a significantly larger L3 cache of 288 MB for parallelized or cache-sensitive enterprise workloads.