Core 2 Extreme X9000 vs Pentium Extreme Edition 955

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.

Core 2 Extreme X9000 vs Pentium Extreme Edition 955 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.

Core 2 Extreme X9000 vs Pentium Extreme Edition 955: Pros, Cons & Final Verdict

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

Core 2 Extreme X9000

2008

Why buy it

✅Draws 6W instead of 130W, a 124W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Pentium Extreme Edition 955

2005

Why buy it

Trade-offs

❌Lower PassMark (1,095 vs 1,108).
❌Launch MSRP is still $999 MSRP, while Core 2 Extreme X9000 mostly shows up through inconsistent older-market listings.
❌2066.7% higher power demand at 130W vs 6W.

Quick Answers

So, is Core 2 Extreme X9000 better than Pentium Extreme Edition 955?

Yes. Core 2 Extreme X9000 is the better all-around CPU here. It gives you a 1.7% average FPS lead across 50 shared CPU game tests in our data, 1.2% 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, Core 2 Extreme X9000 is the better pick. According to our tests, it delivers 1.7% 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, Core 2 Extreme X9000 is the stronger fit. You are getting 1.2% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Extreme X9000 is still the much better call for a fresh build. Core 2 Extreme X9000 comes in at an unclear MSRP at unclear MSRP versus $999 MSRP, and it still gives you a 1.7% average FPS lead across 50 shared CPU game tests in our data. Pentium Extreme Edition 955 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2005 platform. Even with 100.0% better value on paper (1.1 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA775.

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

Core 2 Extreme X9000 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2008 vs 2005) and more multi-core headroom with 2 cores / 2 threads instead of 2/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core 2 Extreme X9000 vs Pentium Extreme Edition 955 Technical Specifications

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

Core 2 Extreme X9000

The Core 2 Extreme X9000 is manufactured by Intel. It was released in 10 January 2008 (17 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Passmark benchmark score: 1,108 points. Launch price was $851.

Pentium Extreme Edition 955

The Pentium Extreme Edition 955 is manufactured by Intel. It was released in 27 December 2005 (19 years ago). It is based on the Presler (2005−2007) architecture. It features 2 cores and 4 threads. Base frequency is 3.466 GHz, with boost up to 0.47 GHz. L2 cache: 2 MB (per core). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 130 Watt. Memory support: DDR1, DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 1,095 points. Launch price was $999.

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Processing Power

The Core 2 Extreme X9000 packs 2 cores / 2 threads, matching the Pentium Extreme Edition 955's 2 cores. Boost clocks reach 2.8 GHz on the Core 2 Extreme X9000 versus 0.47 GHz on the Pentium Extreme Edition 955 — a 142.5% clock advantage for the Core 2 Extreme X9000 (base: 2.8 GHz vs 3.466 GHz). The Core 2 Extreme X9000 uses the Penryn (2008−2011) architecture (45 nm), while the Pentium Extreme Edition 955 uses Presler (2005−2007) (65 nm). In PassMark, the Core 2 Extreme X9000 scores 1,108 against the Pentium Extreme Edition 955's 1,095 — a 1.2% lead for the Core 2 Extreme X9000.

Feature	Core 2 Extreme X9000	Pentium Extreme Edition 955
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.8 GHz+496%	0.47 GHz
Base Clock	2.8 GHz	3.466 GHz+24%
L3 Cache	6 MB L2 Cache	—
L2 Cache	6 MB+200%	2 MB (per core)
Process	45 nm-31%	65 nm
Architecture	Penryn (2008−2011)	Presler (2005−2007)
PassMark	1,108+1%	1,095

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Memory & Platform

The Core 2 Extreme X9000 uses the PGA478 socket (PCIe 1.1), while the Pentium Extreme Edition 955 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.