Celeron 3855U vs Pentium E6700

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 3855U vs Pentium E6700 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 3855U vs Pentium E6700: Pros, Cons & Final Verdict

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

Celeron 3855U

2015

Why buy it

✅Draws 15W instead of 65W, a 50W reduction.
✅100+% more PCIe lanes (10 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics 510, while Pentium E6700 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,215 vs 1,219).

Pentium E6700

2010

Why buy it

Trade-offs

❌Launch MSRP is still $86 MSRP, while Celeron 3855U mostly shows up through inconsistent older-market listings.
❌333.3% higher power demand at 65W vs 15W.
❌No integrated graphics, while Celeron 3855U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Pentium E6700 better than Celeron 3855U?

Yes. Pentium E6700 is the better all-around CPU here. It gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data and 0.3% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Pentium E6700 is the better pick. According to our tests, it delivers 2.1% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Pentium E6700 is the stronger fit. You are getting 0.3% better PassMark, backed by 2 cores and 2 threads.

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

Pentium E6700 is the better buy right now. Pentium E6700 comes in at an unclear MSRP at $86 MSRP versus unclear MSRP, and it still gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (14.2 vs 0.0 PassMark/$), 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 3855U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2010). That makes it the safer long-term bet.

Celeron 3855U vs Pentium E6700 Technical Specifications

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

Celeron 3855U

The Celeron 3855U is manufactured by Intel. It was released in 15 August 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 2 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600. Passmark benchmark score: 1,215 points. Launch price was $107.

Pentium E6700

The Pentium E6700 is manufactured by Intel. It was released in 30 May 2010 (15 years ago). It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 2 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,219 points. Launch price was $80.

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Processing Power

Both the Celeron 3855U and Pentium E6700 share an identical 2-core/2-thread configuration. Boost clocks reach 1.6 GHz on the Celeron 3855U versus 3.2 GHz on the Pentium E6700 — a 66.7% clock advantage for the Pentium E6700 (base: 1.6 GHz vs 3.2 GHz). The Celeron 3855U uses the Skylake (2015−2016) architecture (14 nm), while the Pentium E6700 uses Wolfdale (2008−2010) (45 nm). In PassMark, the Celeron 3855U scores 1,215 against the Pentium E6700's 1,219 — a 0.3% lead for the Pentium E6700. L3 cache: 2 MB on the Celeron 3855U vs 0 kB on the Pentium E6700.

Feature	Celeron 3855U	Pentium E6700
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.6 GHz	3.2 GHz+100%
Base Clock	1.6 GHz	3.2 GHz+100%
L3 Cache	2 MB	0 kB
L2 Cache	512 kB	2 MB (total)+300%
Process	14 nm-69%	45 nm
Architecture	Skylake (2015−2016)	Wolfdale (2008−2010)
PassMark	1,215	1,219
Geekbench 6 Single	361	—
Geekbench 6 Multi	632	—

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Memory & Platform

The Celeron 3855U uses the BGA1356 socket (PCIe 3.0), while the Pentium E6700 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4 2133 MHz on the Celeron 3855U versus DDR3-1066 on the Pentium E6700 — the Celeron 3855U supports 100.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 3855U supports up to 32 GB of RAM compared to 8 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 10 (Celeron 3855U) vs 0 (Pentium E6700) — the Celeron 3855U offers 10 more lanes for additional GPUs or NVMe drives.

Feature	Celeron 3855U	Pentium E6700
Socket	BGA1356	LGA775
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	DDR4 2133 MHz+100%	DDR3-1066
Max RAM Capacity	32 GB+300%	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	10	0

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Advanced Features

Neither processor supports overclocking. Virtualization support: true (Celeron 3855U) vs VT-x (Pentium E6700). The Celeron 3855U includes integrated graphics (Intel HD Graphics 510), while the Pentium E6700 requires a dedicated GPU. Primary use case: Celeron 3855U targets Budget, Pentium E6700 targets Desktop. Direct competitor: Celeron 3855U rivals Pentium 3825U.