Celeron 2955U vs Celeron 6305

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 2955U vs Celeron 6305 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 2955U vs Celeron 6305: Pros, Cons & Final Verdict

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

Celeron 2955U

2013

Why buy it

✅150% more PCIe lanes (10 vs 4) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (2,069 vs 2,077).
❌Smaller total L3 cache (2 MB vs 4 MB).
❌20380% higher power demand at 512W vs 2.5W.

Celeron 6305

2020

Why buy it

✅+100% larger total L3 cache (4 MB vs 2 MB).
✅Draws 3W instead of 512W, a 510W reduction.

Trade-offs

❌Launch MSRP is still $107 MSRP, while Celeron 2955U mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Celeron 6305 better than Celeron 2955U?

Yes. Celeron 6305 is the better all-around CPU here. It gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data, 0.4% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Celeron 6305 is the better pick. According to our tests, it delivers 0.6% 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, Celeron 6305 is the stronger fit. You are getting 0.4% better PassMark, backed by 2 cores and 2 threads. It also has the larger cache pool with 100% larger total L3 cache (4 MB vs 2 MB).

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

Celeron 6305 is the better buy right now. Celeron 6305 comes in at an unclear MSRP at $107 MSRP versus unclear MSRP, and it still gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (19.4 vs 0.0 PassMark/$), 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 6305 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2013), 100% larger total L3 cache (4 MB vs 2 MB), and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Celeron 2955U vs Celeron 6305 Technical Specifications

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

Celeron 2955U

The Celeron 2955U is manufactured by Intel. It was released in 2007-01-01. It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 1.4 GHz, with boost up to 1.4 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,069 points. Launch price was $69.

Celeron 6305

The Celeron 6305 is manufactured by Intel. It was released in 2007-01-01. It is based on the Tiger Lake-U (2020−2021) architecture. It features 2 cores and 2 threads. Max frequency: 1.8 GHz. L3 cache: 4 MB. L2 cache: 2.5 MB. Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 2.5 MB + 4 MB. Memory support: DDR4. Passmark benchmark score: 2,077 points. Launch price was $69.

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Processing Power

Both the Celeron 2955U and Celeron 6305 share an identical 2-core/2-thread configuration. Boost clocks reach 1.4 GHz on the Celeron 2955U versus 1.8 GHz on the Celeron 6305 — a 25% clock advantage for the Celeron 6305. The Celeron 2955U uses the Haswell (2013−2015) architecture (22 nm), while the Celeron 6305 uses Tiger Lake-U (2020−2021) (10 nm SuperFin). In PassMark, the Celeron 2955U scores 2,069 against the Celeron 6305's 2,077 — a 0.4% lead for the Celeron 6305. L3 cache: 2 MB (total) on the Celeron 2955U vs 4 MB on the Celeron 6305.

Feature	Celeron 2955U	Celeron 6305
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.4 GHz	1.8 GHz+29%
Base Clock	1.4 GHz	—
L3 Cache	2 MB (total)	4 MB+100%
L2 Cache	256K (per core)+10140%	2.5 MB
Process	22 nm	10 nm SuperFin-55%
Architecture	Haswell (2013−2015)	Tiger Lake-U (2020−2021)
PassMark	2,069	2,077
Geekbench 6 Single	—	744
Geekbench 6 Multi	—	1,236

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Memory & Platform

The Celeron 2955U uses the FCBGA1168 socket (PCIe 3.0), while the Celeron 6305 uses FCBGA1449 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1600 on the Celeron 2955U versus DDR4-3200 on the Celeron 6305 — the Celeron 6305 supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 6305 supports up to 64 GB of RAM compared to 16 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 10 (Celeron 2955U) vs 4 (Celeron 6305) — the Celeron 2955U offers 6 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Wildcat Point-LP (Celeron 2955U) and Tiger Lake-U (Celeron 6305).

Feature	Celeron 2955U	Celeron 6305
Socket	FCBGA1168	FCBGA1449
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR3L-1600	DDR4-3200+100%
Max RAM Capacity	16 GB	64 GB+300%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	10+150%	4

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Celeron 2955U) vs VT-x, VT-d (Celeron 6305). Both include integrated graphics — HD Graphics (Haswell) (Celeron 2955U) and UHD Graphics for 11th Gen (Celeron 6305) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 2955U targets Budget, Celeron 6305 targets Budget. Direct competitor: Celeron 2955U rivals Pentium 2117U; Celeron 6305 rivals Pentium Gold 7505.