CPU Comparison

The Intel Celeron G6900TE and the Intel Xeon W3540 occupy opposite ends of Intel’s product spectrum, separated by over a decade of silicon evolution. The Celeron is a modern 2-core, 2-thread Alder Lake part on Socket 1700, while the Xeon is a 4-core, 8-thread Nehalem-era workstation chip on Socket 1366. Despite the Xeon’s double the cores and four times the threads, benchmark data shows the Celeron winning every recorded head-to-head test, though by remarkably slim margins. The average benchmark score for the Celeron is 925, placing it in the 25th percentile of all CPUs, while the Xeon scores 913, sitting at the 24th percentile. This near-parity in overall performance, despite vastly different architectures and market positions, makes for a fascinating comparison of how far efficiency and architectural improvements have come.

Where Each One Wins

The data is unambiguous on one point: the Intel Celeron G6900TE wins in every single recorded benchmark category. Five head-to-head tests are listed, and the Celeron takes all five. The largest margin is a 1.3% advantage in Cinebench R20 multicore, Cinebench R20 singlecore, Cinebench R23 multicore, and Cinebench R23 singlecore. The smallest edge is a 1.1% lead in Cinebench R15 multicore. There is no test where the Xeon W3540 comes out ahead.

That said, the practical significance of these wins is minimal. A 1.3% difference in synthetic rendering workloads is well within run-to-run variance and would be imperceptible in real-world use. The Xeon’s theoretical advantage in thread count, 8 threads versus 2, does not translate into a benchmark victory because the Celeron’s newer architecture and higher instructions-per-clock compensate for its lack of concurrent execution resources. For workloads that scale with raw core count, one might expect the Xeon to dominate, but the data shows otherwise. The Celeron’s win pattern suggests that clock-for-clock and core-for-core, the Alder Lake architecture is vastly more efficient than Nehalem.

The Xeon W3540 does hold one qualitative advantage: it supports ECC memory, while the Celeron does not. For error-sensitive server or workstation tasks, that feature alone could make the Xeon the more suitable choice, even if its raw scores are slightly lower. The Celeron counters with integrated UHD Graphics 710, which the Xeon lacks entirely, making the Celeron a more self-contained solution for basic systems without a discrete GPU.

Architecture Differences

The architectural gap between these two processors is enormous. The Celeron G6900TE is built on Intel’s 10 nm process node, while the Xeon W3540 uses the 45 nm node from 2009. The Celeron’s transistor count is not listed in the data, but the Xeon packs 731 million transistors into a 263 mm² die. The process shrink alone explains much of the performance-per-watt difference: the Celeron has a 35 W TDP, while the Xeon draws 130 W.

The core configurations are fundamentally different. The Celeron has 2 cores and 2 threads, no Hyper-Threading, while the Xeon has 4 cores and 8 threads. Cache hierarchies also differ significantly. The Celeron allocates 80 KB of L1 and 1.25 MB of L2 per core, plus a shared 4 MB L3 cache. The Xeon uses 64 KB of L1 and 256 KB of L2 per core, with a larger shared 8 MB L3. Despite having double the total L3 cache, the Xeon still cannot outperform the Celeron in synthetic tests, underscoring how cache size alone is not a predictor of modern performance.

Memory support diverges sharply. The Celeron supports DDR4 and DDR5 in dual-channel mode, while the Xeon is limited to DDR3 in triple-channel configuration. The Celeron also features PCIe Gen 5, versus the Xeon’s PCIe Gen 2. Integrated graphics are present on the Celeron (UHD Graphics 710) but absent on the Xeon. The Celeron’s boost clock is not listed, while the Xeon has a base clock of 2.93 GHz and a boost clock of 3.20 GHz. The Celeron’s base clock is 2.40 GHz. Neither processor has an unlocked multiplier.

Production status tells the rest of the story: the Celeron is Active, released in January 2022, while the Xeon is End-of-life, released in March 2009. The Celeron’s part number is SRL68, and the Xeon’s is SLBEX. The Xeon targets the Server/Workstation market segment, while the Celeron is a Desktop part.

Head-to-Head Benchmarks

Starting with Cinebench R15 multicore, the Celeron scores 270 against the Xeon’s 267, a 1.1% difference. This is the closest contest in the entire comparison. Moving to Cinebench R20 multicore, the Celeron scores 1128, and the Xeon scores 1113, giving the Celeron a 1.3% lead. In Cinebench R20 singlecore, the Celeron scores 159 versus the Xeon’s 157, again a 1.3% margin.

The two most demanding tests are the Cinebench R23 runs. In multicore, the Celeron scores 2687, while the Xeon manages 2652, a 1.3% advantage for the Celeron. In singlecore, the Celeron scores 379, and the Xeon scores 374, once more a 1.3% edge. Across all five benchmarks, the Celeron’s average lead is approximately 1.3%, with the only sub-1.3% result being the 1.1% in R15 multicore.

What these numbers reveal is that the Xeon’s 4-core/8-thread configuration does not overcome the Celeron’s architectural superiority. In fact, the consistency of the margins, four out of five tests at exactly 1.3%, suggests that the performance difference is not workload-dependent but rather a fixed architectural advantage. The Xeon’s higher base clock (2.93 GHz vs 2.40 GHz) and boost capability (3.20 GHz) are not enough to compensate for the Celeron’s newer cores and better memory subsystem. If the Xeon could leverage its thread advantage, we would expect to see a larger multicore gap in its favor, but the data shows the opposite.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon W3540 has 4 cores and 8 threads, while the Intel Celeron G6900TE has 2 cores and 2 threads.

Q: Does the Xeon W3540 support ECC memory?

A: Yes, the Xeon W3540 supports ECC memory. The Celeron G6900TE does not list ECC support.

Q: Which CPU is manufactured on a smaller process node?

A: The Celeron G6900TE uses a 10 nm process, while the Xeon W3540 uses a 45 nm process.

Q: What is the TDP difference between the two?

A: The Celeron G6900TE has a 35 W TDP, and the Xeon W3540 has a 130 W TDP.

Q: Does either processor include integrated graphics?

A: The Celeron G6900TE includes UHD Graphics 710. The Xeon W3540 has no integrated graphics.

Q: Which CPU has a higher average benchmark score?

A: The Celeron G6900TE has an average benchmark score of 925, versus the Xeon W3540’s 913.

The Verdict

Based strictly on benchmark data, the Intel Celeron G6900TE is the faster processor in every measured category. It wins all five head-to-head tests, with margins ranging from 1.1% to 1.3%. Its average benchmark score of 925 is 12 points higher than the Xeon’s 913, and it sits at the 25th percentile versus the Xeon’s 24th. For any workload captured by these Cinebench tests, the Celeron is the better performer.

However, the Xeon W3540 is not without justification. It offers ECC memory support, which is critical for data integrity in server or workstation environments. It also has double the cores and four times the threads, which may be relevant for legacy software that scales with thread count but is not captured by these particular benchmarks. Its 8 MB of shared L3 cache is double the Celeron’s 4 MB, though this does not translate into a performance win.

The Celeron is the clear choice for a modern desktop system, given its active production status, integrated graphics, lower TDP, and support for DDR4/DDR5 and PCIe Gen 5. The Xeon is a legacy part, end-of-life since its 2009 release, and its 130 W TDP makes it far less efficient. For anyone building a new system, the Celeron’s architectural advantages and current availability make it the only sensible pick from this data. For those maintaining an old Socket 1366 workstation that requires ECC memory, the Xeon remains a functional option, but it offers no benchmark-based advantage over its modern rival.

Specification Differences

| Specification | Intel Celeron G6900TE | Intel Xeon W3540 |

|---|---|---|

| Cores | 2 | 4 |

| Threads | 2 | 8 |

| Base Clock | 2.40 GHz | 2.93 GHz |

| Boost Clock | Not listed | 3.20 GHz |

| TDP | 35 W | 130 W |

| Socket | Intel Socket 1700 | Intel Socket 1366 |

| Architecture | Alder Lake | Nehalem |

| Codename | Alder Lake-S | Bloomfield |

| Process Node | 10 nm | 45 nm |

| Transistors | Not listed | 731 million |

| Die Size | Not listed | 263 mm² |

| L1 Cache | 80 KB (per core) | 64 KB (per core) |

| L2 Cache | 1.25 MB (per core) | 256 KB (per core) |

| L3 Cache | 4 MB (shared) | 8 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR3 |

| Memory Bus | Dual-channel | Triple-channel |

| ECC Memory | No | Yes |

| PCIe | Gen 5 | Gen 2 |

| Integrated Graphics | UHD Graphics 710 | None |

| Market Segment | Desktop | Server/Workstation |

| Production Status | Active | End-of-life |

| Release Date | 2022-01-03 | 2009-03-29 |

| Part Number | SRL68 | SLBEX |

| Multiplier Unlocked | No | No |