Core i7-860 vs Xeon X5550

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 i7-860 vs Xeon X5550 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 i7-860 vs Xeon X5550: Pros, Cons & Final Verdict

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

Core i7-860

2009

Why buy it

Trade-offs

❌Lower PassMark (3,011 vs 3,036).
❌Launch MSRP is still $284 MSRP, while Xeon X5550 mostly shows up through inconsistent older-market listings.

Xeon X5550

2009

Why buy it

✅+0.8% higher PassMark.

Trade-offs

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

Quick Answers

So, is Xeon X5550 better than Core i7-860?

Not really, because they are built for different jobs. Xeon X5550 makes more sense for workstation-style multi-core throughput, while Core i7-860 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 X5550 is the stronger fit. You are getting 0.8% better PassMark, backed by 4 cores and 8 threads.

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

Xeon X5550 is still the much better call for a fresh build. Xeon X5550 comes in at an unclear MSRP at unclear MSRP versus $284 MSRP, and it still gives you 0.8% better PassMark. Core i7-860 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2009 platform. Even with 100.0% better value on paper (10.6 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1156.

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

Xeon X5550 makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 4 cores / 8 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-860 vs Xeon X5550 Technical Specifications

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

Core i7-860

The Core i7-860 is manufactured by Intel. It was released in 8 September 2009 (16 years ago). It is based on the Lynnfield (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.8 GHz, with boost up to 3.46 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1156. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,011 points. Launch price was $229.

Xeon X5550

The Xeon X5550 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Gainestown (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.66 GHz, with boost up to 3.06 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,036 points. Launch price was $62.

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Processing Power

Both the Core i7-860 and Xeon X5550 share an identical 4-core/8-thread configuration. Boost clocks reach 3.46 GHz on the Core i7-860 versus 3.06 GHz on the Xeon X5550 — a 12.3% clock advantage for the Core i7-860 (base: 2.8 GHz vs 2.66 GHz). The Core i7-860 uses the Lynnfield (2009−2010) architecture (45 nm), while the Xeon X5550 uses Gainestown (2009−2010) (45 nm). In PassMark, the Core i7-860 scores 3,011 against the Xeon X5550's 3,036 — a 0.8% lead for the Xeon X5550. Both processors carry 8 MB (total) of L3 cache.

Feature	Core i7-860	Xeon X5550
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.46 GHz+13%	3.06 GHz
Base Clock	2.8 GHz+5%	2.66 GHz
L3 Cache	8 MB (total)	8 MB (total)
L2 Cache	256 kB (per core)	256 kB (per core)
Process	45 nm	45 nm
Architecture	Lynnfield (2009−2010)	Gainestown (2009−2010)
PassMark	3,011	3,036

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Memory & Platform

The Core i7-860 uses the LGA1156 socket (PCIe 2.0), while the Xeon X5550 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i7-860	Xeon X5550
Socket	LGA1156	LGA1366
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	—	DDR3-1333
RAM Channels	—	3
ECC Support	—	Yes

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Advanced Features

Virtualization: not specified (Core i7-860) / VT-x, VT-d, EPT (Xeon X5550). Primary use case: Xeon X5550 targets Workstation. Direct competitor: Xeon X5550 rivals Core i3-2100.