Intel Pentium Silver N6005 vs Intel Xeon D-1527 Comparison

The Intel Pentium Silver N6005 and Intel Xeon D-1527 are both quad-core Intel parts, but the benchmark data shows the Pentium Silver N6005 as the clear performance leader in every tested workload, despite the Xeon’s higher thread count and server-oriented pedigree. The N6005 wins all six head-to-head comparisons, with margins consistently above 6%, while both CPUs sit at the same 34th percentile of all tested processors. This is a case where newer architecture and higher boost clocks overcome a deficit in threads and cache.

Head-to-Head Benchmarks

The Pentium Silver N6005’s sweep is decisive and consistent across all Cinebench versions. In Cinebench R15 multi-core, the N6005 scores 447 against the Xeon D-1527’s 420, a 6.4% advantage. The single-core R15 result is even closer in percentage terms but still favors the N6005: 63 versus 59, a 6.8% lead. These early wins establish a pattern where the N6005’s per-core strength translates directly into multi-threaded superiority.

Moving to Cinebench R20, the N6005 posts 1866 multi-core and 263 single-core, while the Xeon D-1527 manages 1753 and 247 respectively. The deltas are 6.4% and 6.5%, nearly identical to the R15 margins. This consistency across rendering generations suggests the performance gap is structural rather than workload-specific. The newest Cinebench R23 test confirms the trend: the N6005 scores 4444 multi-core and 627 single-core, versus 4176 and 589 for the Xeon. The 6.4% multi-core and 6.5% single-core differences are remarkably stable, indicating that the N6005’s architectural efficiency provides a uniform advantage regardless of the rendering engine’s complexity.

The Geekbench results are only available for the N6005 (1469 multi-core, 564 single-core), so no direct comparison is possible there. However, the Cinebench data alone is sufficient to establish the N6005 as the faster chip in every measured scenario. The Xeon’s eight threads (versus four on the N6005) do not translate into any multi-core win; the N6005’s higher 3.30 GHz boost clock and Tremont architecture simply deliver more work per cycle. The Xeon’s 2.70 GHz boost is not enough to offset this architectural gap, and the result is a clean 6-0 sweep in favor of the Pentium Silver.

Architecture Differences

The two processors come from vastly different Intel design philosophies. The N6005 uses the Tremont architecture on a 10 nm process node, with a die size of just 63.8 mm². This is a low-power, high-efficiency design aimed at mobile devices. The Xeon D-1527, in contrast, uses the older Broadwell architecture on a 14 nm node, with a much larger 246 mm² die and 3,200 million transistors. This is a server-class silicon built for sustained workloads and enterprise reliability.

Cache layouts diverge significantly. The N6005 provides 64 KB of L1 per core, 1.5 MB of shared L2, and 4 MB of shared L3. The Xeon D-1527 also has 64 KB of L1 per core, but its L2 is 256 KB per core (1 MB total for four cores) and its L3 is 1.5 MB per core (6 MB total). While the Xeon has more total L3, the N6005’s shared pool is more flexible for its four threads. The N6005’s L2 is shared across all cores, which can reduce latency for co-operating threads, whereas the Xeon’s per-core L2 is private.

Memory support differs as well. The N6005 accepts DDR4 and LPDDR4 with dual-channel support and a stated bandwidth of 46.9 GB/s, but it does not support ECC memory. The Xeon D-1527 supports both DDR3 and DDR4, also dual-channel, but its memory bandwidth is not listed in the data. Crucially, the Xeon supports ECC memory, a key feature for server reliability. The N6005 has integrated UHD Graphics 32EU, while the Xeon has no integrated graphics at all. PCIe connectivity also favors the Xeon: it offers Gen 3 with 24 lanes (CPU only), versus the N6005’s Gen 3 with 8 lanes (CPU only). The Xeon’s socket is Intel BGA 1667, while the N6005 uses Intel BGA 1338.

Where Each One Wins

The benchmark data is unambiguous: the N6005 wins every performance test. There is no rendering workload where the Xeon D-1527 comes out ahead. The N6005’s wins are not narrow — they range from 6.4% to 6.8% across all Cinebench versions. This makes the N6005 the better choice for any CPU-bound task that relies on raw compute, including video encoding, 3D rendering, and general productivity.

The Xeon’s advantages are not in raw benchmark scores but in platform features. It supports ECC memory, which is critical for error-sensitive server workloads like database hosting or financial calculations. It has 24 PCIe Gen 3 lanes, allowing for more expansion cards, NVMe drives, or network adapters than the N6005’s 8 lanes. The Xeon also has a higher base clock of 2.20 GHz versus the N6005’s 2.00 GHz, though the N6005’s boost clock of 3.30 GHz exceeds the Xeon’s 2.70 GHz. For sustained all-core loads, the Xeon’s 35 W TDP (versus 10 W for the N6005) suggests it can maintain higher frequencies under load, but the benchmark results do not reflect this — the N6005 still wins multi-core tests.

The N6005 wins on efficiency and integrated graphics. Its 10 W TDP is dramatically lower than the Xeon’s 35 W, making it suitable for fanless or passively cooled designs. The integrated UHD Graphics 32EU means it can handle display output without a discrete GPU, which the Xeon cannot do. For a compact NAS, media server, or thin client, the N6005 is the superior compute engine. For a server requiring ECC and high PCIe expansion, the Xeon’s platform features outweigh its benchmark deficit.

Specification Differences

• Cores: N6005 has 4, Xeon D-1527 has 4.
• Threads: N6005 has 4, Xeon D-1527 has 8.
• Base Clock: N6005 is 2.00 GHz, Xeon D-1527 is 2.20 GHz.
• Boost Clock: N6005 is 3.30 GHz, Xeon D-1527 is 2.70 GHz.
• TDP: N6005 is 10 W, Xeon D-1527 is 35 W.
• Socket: N6005 is Intel BGA 1338, Xeon D-1527 is Intel BGA 1667.
• Architecture: N6005 is Tremont, Xeon D-1527 is Broadwell.
• Process Node: N6005 is 10 nm, Xeon D-1527 is 14 nm.
• Die Size: N6005 is 63.8 mm², Xeon D-1527 is 246 mm².
• Transistors: N6005 is not listed, Xeon D-1527 is 3,200 million.
• L2 Cache: N6005 is 1.5 MB (shared), Xeon D-1527 is 256 KB (per core).
• L3 Cache: N6005 is 4 MB (shared), Xeon D-1527 is 1.5 MB (per core).
• Memory Support: N6005 is DDR4, LPDDR4; Xeon D-1527 is DDR3, DDR4.
• Memory Bandwidth: N6005 is 46.9 GB/s, Xeon D-1527 is not listed.
• ECC Memory: N6005 is false, Xeon D-1527 is true.
• PCIe: N6005 is Gen 3, 8 Lanes (CPU only); Xeon D-1527 is Gen 3, 24 Lanes (CPU only).
• Integrated Graphics: N6005 is UHD Graphics 32EU, Xeon D-1527 is none.
• Market Segment: N6005 is Mobile, Xeon D-1527 is Server/Workstation.
• Production Status: N6005 is End-of-life, Xeon D-1527 is Active.
• Launch MSRP: Xeon D-1527 is $213; N6005 has no listed launch MSRP.

FAQ

Q: Which CPU is faster in multi-core rendering?

A: The Intel Pentium Silver N6005 wins all multi-core Cinebench tests. In R23 multi-core, it scores 4444 versus 4176 for the Xeon D-1527, a 6.4% advantage.

Q: Does the Xeon D-1527’s 8 threads give it an advantage in any benchmark?

A: No. Despite having 8 threads versus the N6005’s 4, the Xeon loses every multi-core test. The N6005’s higher boost clock and newer architecture compensate for the thread deficit.

Q: Can the N6005 handle error-correcting memory?

A: No, ECC memory support is listed as false for the N6005. The Xeon D-1527 supports ECC, which is a key differentiator for server use.

Q: What is the power consumption difference?

A: The N6005 has a TDP of 10 W, while the Xeon D-1527 has a TDP of 35 W. The N6005 is significantly more power-efficient.

Q: Which CPU supports more PCIe lanes?

A: The Xeon D-1527 supports Gen 3 with 24 lanes (CPU only), compared to the N6005’s Gen 3 with 8 lanes (CPU only). The Xeon offers more expansion capability.

Q: Is the Xeon D-1527 still in production?

A: Yes, the Xeon D-1527 is listed as Active. The N6005 is listed as End-of-life.

The Verdict

The benchmark data is clear: the Intel Pentium Silver N6005 is the faster processor in every measured workload. Its six Cinebench wins, with margins between 6.4% and 6.8%, make it the default choice for anyone prioritizing raw compute performance. The N6005’s 10 nm Tremont architecture and 3.30 GHz boost clock deliver superior single-core and multi-core results compared to the Xeon D-1527’s 14 nm Broadwell design at 2.70 GHz boost. For rendering, encoding, or general-purpose computing, the N6005 is unequivocally the better performer.

The Xeon D-1527’s case rests entirely on platform features, not performance. It supports ECC memory, offers 24 PCIe Gen 3 lanes, and is still in active production with a $213 launch MSRP. Its 35 W TDP and server-class socket (BGA 1667) target embedded or workstation environments where reliability and expansion are paramount. The N6005, with its 10 W TDP, integrated UHD Graphics, and mobile socket, is better suited to compact, power-constrained systems.

The verdict depends on the use case. For a low-power media server, thin client, or compact NAS where performance matters most, the N6005 wins outright. For a server workload requiring ECC memory validation, extensive PCIe expansion, or long-term availability, the Xeon D-1527 is the only option that fits. The data does not support choosing the Xeon for speed — it is slower in every test. The Xeon wins only on features that the benchmarks do not measure.