CPU Comparison

The Intel Xeon W5580 and Intel Processor N100 occupy opposite ends of the Intel spectrum: a 2009-era server/workstation part with a 130W TDP versus a 2023 mobile processor drawing just 6W. Despite the generational gap, their average benchmark scores are nearly identical, with the Xeon at 1012 and the N100 at 1007. This places them in the same performance tier, with the Xeon holding a 0.5% edge in average score. The data shows a fascinating split: the older chip wins on raw multi-threaded throughput in one test, while the modern chip dominates single-thread performance and another multi-core test.

Head-to-Head Benchmarks

The head-to-head results reveal a clear divergence in workload behavior. In Cinebench R23 multi-core, the Intel Xeon W5580 scores 2940 against the Intel Processor N100's 2559.5, giving the Xeon a 14.9% victory. This is the Xeon's only win in the three shared tests, and it reflects the advantage of having 8 threads versus the N100's 4 threads, despite the N100's newer architecture. The Xeon's 4 cores with Hyper-Threading provide more parallel execution units, which scales better in this heavily multi-threaded render workload.

The N100 strikes back decisively in Cinebench R23 single-core, scoring 910.5 versus the Xeon's 415, a 54.4% advantage. This is a massive gap that underscores the architectural leap from Nehalem to Gracemont. The N100's newer design delivers more instructions per clock, and its higher boost clock of 3.40 GHz (though the base clock is listed as 100.00 MHz, which appears to be a reporting artifact) helps it run away with single-threaded tasks. The Xeon's 3.47 GHz boost clock cannot compensate for the older microarchitecture's lower efficiency.

The third shared test, Cinebench R15 multi-core, also goes to the N100, which scores 401.5 against the Xeon's 296, a 26.3% margin. This is interesting because it contradicts the R23 multi-core result. The R15 test is an older benchmark that may not scale as well with thread counts, allowing the N100's superior per-core performance to shine even in a multi-threaded scenario. The N100 also has additional 3DMark scores in its benchmark suite (single-thread 386, 2-thread 694, 4-thread 1246, 8-thread 1250, 16-thread 1243, max-thread 1235), but the Xeon has no corresponding 3DMark data, so no direct comparison is possible in those tests.

Looking at the broader benchmark landscape, the Xeon's Cinebench R20 multi-core score is 1234 and single-core is 174, while the N100 lacks R20 data. The Xeon's R15 multi-core score of 296 is its lowest relative showing, while its R23 multi-core score of 2940 is its strongest. The N100's R23 single-core score of 910.5 is its standout result, nearly matching the Xeon's R23 multi-core score of 2940 in raw points but achieving it with a single thread. The average benchmark scores, 1012 for the Xeon and 1007 for the N100, confirm these are closely matched overall, with the Xeon's nearest rival being the Intel Core i7-2675QM at 1012 (0% delta) and the N100's nearest rival being the Intel Core i5-10210Y at 1006 (0.1% delta).

The Verdict

The data points to a clear split by use case rather than a single overall winner. The Intel Xeon W5580 wins in Cinebench R23 multi-core by 14.9%, making it the choice for workloads that can fully utilize 8 threads and need sustained multi-threaded performance. Its 8 MB of shared L3 cache and triple-channel DDR3 memory with 32.0 GB/s bandwidth support this profile, though the N100 counters with a higher memory bandwidth of 38.4 GB/s despite single-channel support.

The Intel Processor N100 wins two of the three shared tests, including a 54.4% margin in single-core performance. This makes it the better option for everyday responsiveness, lightly threaded applications, and any task where per-core speed matters more than raw thread count. Its 6W TDP versus the Xeon's 130W also indicates dramatically lower power draw, though the benchmark database does not provide direct power consumption measurements. The N100's active production status and 2023 release date suggest it is the more future-proof option, while the Xeon is end-of-life.

For a server or workstation that runs heavily parallelized render jobs, the Xeon's R23 multi-core win is the deciding factor. For a mobile or compact system handling mixed workloads, the N100's single-core dominance and lower TDP make it the pragmatic pick. The percentile rankings reinforce this: the Xeon sits at the 28th percentile of all CPUs, while the N100 sits at the 27th, confirming they are statistically equivalent in overall performance. There is no universal winner, the choice hinges entirely on whether the workload favors 8 threads or 4 faster threads.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Xeon W5580 has an average benchmark score of 1012, while the Intel Processor N100 scores 1007. The Xeon leads by 0.5%, according to the nearestRivals data.

Q: How large is the single-core performance gap?

A: In Cinebench R23 single-core, the Intel Processor N100 scores 910.5 versus the Xeon W5580's 415, a 54.4% advantage for the N100. This is the largest delta in any shared test.

Q: Does the Xeon W5580 ever beat the N100?

A: Yes, in Cinebench R23 multi-core, the Xeon scores 2940 against the N100's 2559.5, winning by 14.9%. The Xeon also has 8 threads versus the N100's 4 threads, which contributes to this result.

Q: What is the TDP difference between the two?

A: The Intel Xeon W5580 has a TDP of 130W, while the Intel Processor N100 has a TDP of 6W. The N100 draws significantly less power, though the benchmark database does not include wattage figures for other components.

Q: Which chip supports ECC memory?

A: The Intel Xeon W5580 supports ECC memory, while the Intel Processor N100 does not. The Xeon also uses triple-channel DDR3, whereas the N100 uses single-channel DDR4 or DDR5.

Q: Are there any benchmark tests where only one chip has results?

A: Yes, the Intel Processor N100 has six 3DMark scores (single-thread 386, 2-thread 694, 4-thread 1246, 8-thread 1250, 16-thread 1243, max-thread 1235) that have no Xeon counterpart. The Xeon has Cinebench R20 scores (multi-core 1234, single-core 174) that the N100 lacks.

Specification Differences

The two processors differ in nearly every specification category. The Intel Xeon W5580 has 4 cores and 8 threads, while the Intel Processor N100 also has 4 cores but only 4 threads, no Hyper-Threading. Base clock speeds are listed as 3.20 GHz for the Xeon and 100.00 MHz for the N100, though the latter figure appears anomalous; boost clocks are closer, with the Xeon at 3.47 GHz and the N100 at 3.40 GHz.

TDP is a major differentiator: the Xeon draws 130W versus the N100's 6W. The Xeon uses Intel Socket 1366, while the N100 uses Intel BGA 1264. The Xeon supports DDR3 memory with a triple-channel bus and 32.0 GB/s bandwidth; the N100 supports DDR4 and DDR5 with a single-channel bus but higher bandwidth at 38.4 GB/s. ECC memory is supported on the Xeon but not the N100. PCIe generations differ too: the Xeon uses Gen 2, while the N100 uses Gen 3 with 9 lanes (CPU only).

The Xeon has no integrated graphics, while the N100 includes UHD Graphics 730. Market segments diverge, the Xeon targets Server/Workstation, the N100 targets Mobile. Production status is End-of-life for the Xeon versus Active for the N100. Release dates are March 2009 for the Xeon and January 2023 for the N100. The launch MSRP is $1600 for the Xeon and $128 for the N100. The Xeon's part number is SLBF2, and the N100's is SRMDM. Neither chip has an unlocked multiplier.

Architecture Differences

The architectural gap is substantial. The Intel Xeon W5580 uses the Nehalem architecture with the codename Gainestown, built on a 45 nm process node. It contains 731 million transistors on a 263 mm² die. The Intel Processor N100 uses the Gracemont architecture with the same codename, built on a 10 nm process node. The N100's transistor count and die size are not listed in the benchmark database.

Cache hierarchies differ significantly. The Xeon has 64 KB of L1 cache per core, 256 KB of L2 cache per core, and 8 MB of shared L3 cache. The N100 has 96 KB of L1 cache per core, 2 MB of shared L2 cache, and 6 MB of shared L3 cache. This means the Xeon has more total L3 cache (8 MB versus 6 MB), but the N100 has more L1 per core (96 KB versus 64 KB) and a shared L2 design versus the Xeon's per-core L2.

The Xeon's generation is listed as "Xeon (Gainestown)" and the N100's as "Intel Processor (Alder Lake-N)". Both are manufactured by Intel, but the process node improvement from 45 nm to 10 nm is a primary driver of the N100's single-core advantage. The Xeon's triple-channel memory controller and ECC support reflect its server heritage, while the N100's integrated UHD Graphics 730 and single-channel memory controller target mobile efficiency. The N100's 9 PCIe Gen 3 lanes (CPU only) versus the Xeon's Gen 2 support also shows the generational shift in I/O capabilities.

Where Each One Wins

The Intel Xeon W5580 wins in scenarios that demand maximum multi-threaded throughput. Its Cinebench R23 multi-core score of 2940, which is 14.9% ahead of the N100, makes it suitable for render farms, batch processing, or any task that can scale across 8 threads. The 8 MB of shared L3 cache helps with data-heavy workloads, and triple-channel DDR3 with ECC support provides reliability for long-running server processes. The 130W TDP suggests it is designed for systems with robust cooling and power delivery.

The Intel Processor N100 wins in single-threaded and lightly threaded scenarios. Its Cinebench R23 single-core score of 910.5 is 54.4% ahead of the Xeon, making it far better for everyday applications like web browsing, office productivity, and responsive UI interactions. Its Cinebench R15 multi-core win (401.5 versus 296, a 26.3% margin) also indicates it handles older or less parallelized multi-threaded workloads better. The 6W TDP and integrated UHD Graphics 730 make it ideal for fanless or low-power mobile devices, while the higher memory bandwidth (38.4 GB/s) compensates for the single-channel bus. The N100's active production status ensures ongoing availability, whereas the Xeon is end-of-life. For any workload where per-core speed matters more than thread count, the N100 is the data-backed choice.