Core i7-5550U vs Xeon X3440

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 i7-5550U vs Xeon X3440 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 i7-5550U vs Xeon X3440: Pros, Cons & Final Verdict

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

Core i7-5550U

2015

Why buy it

✅+0.4% higher PassMark.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon X3440 across 25 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 8 MB).
❌Less compelling for workstation-style loads than Xeon X3440, which brings 4 cores / 8 threads.
❌438.9% higher power demand at 512W vs 95W.

Xeon X3440

2009

Why buy it

✅Better for gaming: +6.9% higher average FPS across 25 shared CPU benchmark tests.
✅+100% larger total L3 cache (8 MB vs 4 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.
✅Draws 95W instead of 512W, a 417W reduction.

Trade-offs

❌Lower PassMark (2,769 vs 2,780).
❌Launch MSRP is still $215 MSRP, while Core i7-5550U mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Xeon X3440 better than Core i7-5550U?

Not really, because they are built for different jobs. Xeon X3440 makes more sense for workstation-style multi-core throughput, while Core i7-5550U 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, Core i7-5550U is the stronger fit. You are getting 0.4% better PassMark, backed by 2 cores and 4 threads.

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

Xeon X3440 is the better buy right now. Xeon X3440 comes in at an unclear MSRP at $215 MSRP versus unclear MSRP, and it still gives you a 6.9% average FPS lead across 25 shared CPU game tests in our data. The compromise is that Core i7-5550U is still stronger for heavier multi-core work with 0.4% better PassMark. It is also 100.0% better value on MSRP (12.9 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i7-5550U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2009) and more multi-core headroom with 2 cores / 4 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-5550U vs Xeon X3440 Technical Specifications

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

Core i7-5550U

The Core i7-5550U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) architecture. It features 2 cores and 4 threads. Base frequency is 2 GHz, with boost up to 3 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,780 points. Launch price was $426.

Xeon X3440

The Xeon X3440 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 2.53 GHz, with boost up to 2.93 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: DDR3-800, DDR3-1066, DDR3-1333. Passmark benchmark score: 2,769 points. Launch price was $215.

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Processing Power

The Core i7-5550U packs 2 cores / 4 threads, while the Xeon X3440 offers 4 cores / 8 threads — the Xeon X3440 has 2 more cores. Boost clocks reach 3 GHz on the Core i7-5550U versus 2.93 GHz on the Xeon X3440 — a 2.4% clock advantage for the Core i7-5550U (base: 2 GHz vs 2.53 GHz). The Core i7-5550U uses the Broadwell-U (2015) architecture (14 nm), while the Xeon X3440 uses Lynnfield (2009−2010) (45 nm). In PassMark, the Core i7-5550U scores 2,780 against the Xeon X3440's 2,769 — a 0.4% lead for the Core i7-5550U. L3 cache: 4 MB (total) on the Core i7-5550U vs 8 MB (total) on the Xeon X3440.

Feature	Core i7-5550U	Xeon X3440
Cores / Threads	2 / 4	4 / 8+100%
Boost Clock	3 GHz+2%	2.93 GHz
Base Clock	2 GHz	2.53 GHz+26%
L3 Cache	4 MB (total)	8 MB (total)+100%
L2 Cache	256K (per core)	256 kB (per core)
Process	14 nm-69%	45 nm
Architecture	Broadwell-U (2015)	Lynnfield (2009−2010)
PassMark	2,780	2,769

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Memory & Platform

The Core i7-5550U uses the FCBGA1168 socket (PCIe 3.0), while the Xeon X3440 uses LGA1156 (PCIe 2.0) — making them incompatible on the same motherboard.