Core 2 Extreme X9000 vs Xeon 5120

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 Xeon 5120 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 Xeon 5120: 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 65W, a 59W reduction.

Trade-offs

❌Lower PassMark (1,108 vs 1,115).

Xeon 5120

2006

Why buy it

✅+0.6% higher PassMark.

Trade-offs

❌Launch MSRP is still $107 MSRP, while Core 2 Extreme X9000 mostly shows up through inconsistent older-market listings.
❌983.3% higher power demand at 65W vs 6W.

Quick Answers

So, is Core 2 Extreme X9000 better than Xeon 5120?

Not really, because they are built for different jobs. Xeon 5120 makes more sense for workstation-style multi-core throughput, while Core 2 Extreme X9000 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, Xeon 5120 is the stronger fit. You are getting 0.6% 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 faster CPU overall, but Xeon 5120 is easier to justify if budget matters more than peak performance. Core 2 Extreme X9000 comes in at an unclear MSRP at unclear MSRP versus $107 MSRP, and it still gives you a 1.7% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon 5120 is still stronger for heavier multi-core work with 0.6% better PassMark. Xeon 5120 is also 100.0% better value on MSRP (10.4 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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 2006). That makes it the safer long-term bet.

Core 2 Extreme X9000 vs Xeon 5120 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.

Xeon 5120

The Xeon 5120 is manufactured by Intel. It was released in Junho 2006 (19 years ago). It is based on the Woodcrest (2006) architecture. It features 2 cores and 2 threads. Base frequency is 1.86 GHz, with boost up to 1.87 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA771. Thermal design power (TDP): 65 Watt. Memory support: DDR2. Passmark benchmark score: 1,115 points. Launch price was $45.

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Processing Power

Both the Core 2 Extreme X9000 and Xeon 5120 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Core 2 Extreme X9000 versus 1.87 GHz on the Xeon 5120 — a 39.8% clock advantage for the Core 2 Extreme X9000 (base: 2.8 GHz vs 1.86 GHz). The Core 2 Extreme X9000 uses the Penryn (2008−2011) architecture (45 nm), while the Xeon 5120 uses Woodcrest (2006) (65 nm). In PassMark, the Core 2 Extreme X9000 scores 1,108 against the Xeon 5120's 1,115 — a 0.6% lead for the Xeon 5120. L3 cache: 6 MB L2 Cache on the Core 2 Extreme X9000 vs 0 kB on the Xeon 5120.

Feature	Core 2 Extreme X9000	Xeon 5120
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz+50%	1.87 GHz
Base Clock	2.8 GHz+51%	1.86 GHz
L3 Cache	6 MB L2 Cache	0 kB
L2 Cache	6 MB+50%	4 MB
Process	45 nm-31%	65 nm
Architecture	Penryn (2008−2011)	Woodcrest (2006)
PassMark	1,108	1,115

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Memory & Platform

The Core 2 Extreme X9000 uses the PGA478 socket (PCIe 1.1), while the Xeon 5120 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.