Celeron 2955U vs Core 2 Extreme X9100

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 Core 2 Extreme X9100 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 Core 2 Extreme X9100: 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

✅100+% more PCIe lanes (10 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics (Haswell), while Core 2 Extreme X9100 needs a discrete GPU.

Trade-offs

❌1063.6% higher power demand at 512W vs 44W.

Core 2 Extreme X9100

2008

Why buy it

✅Draws 44W instead of 512W, a 468W reduction.

Trade-offs

❌Lower PassMark (2,063 vs 2,069).
❌Launch MSRP is still $851 MSRP, while Celeron 2955U mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Celeron 2955U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron 2955U better than Core 2 Extreme X9100?

Yes. Celeron 2955U is the better all-around CPU here. It gives you a 1.4% average FPS lead across 50 shared CPU game tests in our data, 0.3% 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 2955U is the better pick. According to our tests, it delivers 1.4% 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 2955U 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?

Celeron 2955U is still the much better call for a fresh build. Celeron 2955U comes in at an unclear MSRP at unclear MSRP versus $851 MSRP, and it still gives you a 1.4% average FPS lead across 50 shared CPU game tests in our data. Core 2 Extreme X9100 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2008 platform. Even with 100.0% better value on paper (2.4 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on PGA478.

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

Celeron 2955U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2008) 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 Core 2 Extreme X9100 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.

Core 2 Extreme X9100

The Core 2 Extreme X9100 is manufactured by Intel. It was released in 1 July 2008 (17 years ago). It is based on the Penryn XE (2008) architecture. It features 2 cores and 2 threads. Base frequency is 3.06 GHz, with boost up to 0.07 GHz. L3 cache: 0 kB. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,063 points. Launch price was $851.

⚡

Processing Power

Both the Celeron 2955U and Core 2 Extreme X9100 share an identical 2-core/2-thread configuration. Boost clocks reach 1.4 GHz on the Celeron 2955U versus 0.07 GHz on the Core 2 Extreme X9100 — a 181% clock advantage for the Celeron 2955U (base: 1.4 GHz vs 3.06 GHz). The Celeron 2955U uses the Haswell (2013−2015) architecture (22 nm), while the Core 2 Extreme X9100 uses Penryn XE (2008) (45 nm). In PassMark, the Celeron 2955U scores 2,069 against the Core 2 Extreme X9100's 2,063 — a 0.3% lead for the Celeron 2955U. L3 cache: 2 MB (total) on the Celeron 2955U vs 0 kB on the Core 2 Extreme X9100.

Feature	Celeron 2955U	Core 2 Extreme X9100
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.4 GHz+1900%	0.07 GHz
Base Clock	1.4 GHz	3.06 GHz+119%
L3 Cache	2 MB (total)	0 kB
L2 Cache	256K (per core)+4167%	6 MB
Process	22 nm-51%	45 nm
Architecture	Haswell (2013−2015)	Penryn XE (2008)
PassMark	2,069	2,063

🧠

Memory & Platform

The Celeron 2955U uses the FCBGA1168 socket (PCIe 3.0), while the Core 2 Extreme X9100 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Celeron 2955U	Core 2 Extreme X9100
Socket	FCBGA1168	PGA478
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	DDR3L-1600	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	10	—

🔧

Advanced Features

Virtualization: VT-x (Celeron 2955U) / not specified (Core 2 Extreme X9100). The Celeron 2955U includes integrated graphics (HD Graphics (Haswell)), while the Core 2 Extreme X9100 requires a dedicated GPU. Primary use case: Celeron 2955U targets Budget. Direct competitor: Celeron 2955U rivals Pentium 2117U.