Celeron G6900 vs Xeon X5647

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Celeron G6900 vs Xeon X5647 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Celeron G6900 vs Xeon X5647: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Celeron G6900

2022

Why buy it

✅+0.4% higher PassMark.
✅Draws 46W instead of 130W, a 84W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA1366 and older memory support.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 710, while Xeon X5647 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon X5647 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 12 MB).
❌Less compelling for workstation-style loads than Xeon X5647, which brings 4 cores / 8 threads.
❌Launch MSRP is still $52 MSRP, while Xeon X5647 mostly shows up through inconsistent older-market listings.

Xeon X5647

2011

Why buy it

✅Better for gaming: +9.4% higher average FPS across 50 shared CPU benchmark tests.
✅+200% larger total L3 cache (12 MB vs 4 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Lower PassMark (4,441 vs 4,458).
❌182.6% higher power demand at 130W vs 46W.
❌Older platform position on LGA1366, while Celeron G6900 moves to LGA1700 and DDR5.
❌No integrated graphics, while Celeron G6900 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron G6900 better than Xeon X5647?

Not really, because they are built for different jobs. Xeon X5647 makes more sense for workstation-style multi-core throughput, while Celeron G6900 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Celeron G6900 is the stronger fit. You are getting 0.4% better PassMark, backed by 2 cores and 2 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Celeron G6900 is the better buy right now. Celeron G6900 comes in at an unclear MSRP at $52 MSRP versus unclear MSRP, and it still gives you 0.4% better PassMark. The compromise is that Xeon X5647 is still the better pure gaming CPU with a 9.4% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (85.7 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Celeron G6900 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2011), a healthier platform with LGA1700 and DDR5 instead of LGA1366, and more multi-core headroom with 2 cores / 2 threads instead of 4/8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Celeron G6900 vs Xeon X5647 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Celeron G6900

The Celeron G6900 is manufactured by Intel. It was released in 2007-01-01. It is based on the Alder Lake-S (2022) architecture. It features 2 cores and 2 threads. Base frequency is 3.4 GHz, with boost up to 3.4 GHz. L3 cache: 4 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 46 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 4,458 points. Launch price was $69.

Xeon X5647

The Xeon X5647 is manufactured by Intel. It was released in 14 February 2011 (14 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 8 threads. Base frequency is 2.93 GHz, with boost up to 3.2 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 4,441 points. Launch price was $175.

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Processing Power

The Celeron G6900 packs 2 cores / 2 threads, while the Xeon X5647 offers 4 cores / 8 threads — the Xeon X5647 has 2 more cores. Boost clocks reach 3.4 GHz on the Celeron G6900 versus 3.2 GHz on the Xeon X5647 — a 6.1% clock advantage for the Celeron G6900 (base: 3.4 GHz vs 2.93 GHz). The Celeron G6900 uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon X5647 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Celeron G6900 scores 4,458 against the Xeon X5647's 4,441 — a 0.4% lead for the Celeron G6900. L3 cache: 4 MB (total) on the Celeron G6900 vs 12 MB (total) on the Xeon X5647.

Feature	Celeron G6900	Xeon X5647
Cores / Threads	2 / 2	4 / 8+100%
Boost Clock	3.4 GHz+6%	3.2 GHz
Base Clock	3.4 GHz+16%	2.93 GHz
L3 Cache	4 MB (total)	12 MB (total)+200%
L2 Cache	1.25 MB (per core)+400%	256 kB (per core)
Process	Intel 7 nm-78%	32 nm
Architecture	Alder Lake-S (2022)	Westmere-EP (2010−2011)
PassMark	4,458	4,441
Geekbench 6 Single	1,563	—
Geekbench 6 Multi	2,631	—

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Memory & Platform

The Celeron G6900 uses the LGA1700 socket (PCIe 5.0), while the Xeon X5647 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the Celeron G6900 versus DDR3-1066 on the Xeon X5647 — the Celeron G6900 supports 350.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. Memory channels: 2 (Celeron G6900) vs 3 (Xeon X5647). Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Celeron G6900) and Intel X58,Intel 5520 (Xeon X5647).

Feature	Celeron G6900	Xeon X5647
Socket	LGA1700	LGA1366
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-4800+350%	DDR3-1066
Max RAM Capacity	128 GB	—
RAM Channels	2	3+50%
ECC Support	No	Yes
PCIe Lanes	20	—

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Celeron G6900) vs VT-x, VT-d (Xeon X5647). The Celeron G6900 includes integrated graphics (UHD Graphics 710), while the Xeon X5647 requires a dedicated GPU. Primary use case: Celeron G6900 targets Budget, Xeon X5647 targets Workstation. Direct competitor: Celeron G6900 rivals Pentium Gold G7400; Xeon X5647 rivals Core i7-980X.