Core i7-5550U vs Xeon L3426

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 L3426 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 L3426: 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

✅+1.4% higher PassMark.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon L3426 across 48 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 8 MB).
❌Less compelling for workstation-style loads than Xeon L3426, which brings 4 cores / 8 threads.
❌1037.8% higher power demand at 512W vs 45W.

Xeon L3426

2009

Why buy it

✅Better for gaming: +6.1% higher average FPS across 48 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 45W instead of 512W, a 467W reduction.

Trade-offs

❌Lower PassMark (2,742 vs 2,780).

Quick Answers

So, is Core i7-5550U better than Xeon L3426?

Not really, because they are built for different jobs. Xeon L3426 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 1.4% better PassMark, backed by 2 cores and 4 threads.

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

Core i7-5550U still makes the most sense overall. Core i7-5550U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 1.4% better PassMark.

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 L3426 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 L3426

The Xeon L3426 is manufactured by Intel. It was released in 2015-01-01. It features 4 cores and 8 threads. Base frequency is 1.86 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB Intel® Smart Cache. Built on 45 nm process technology. Socket: LGA1156. Thermal design power (TDP): 45 Watt. Memory support: DDR3-800, DDR3-1066, DDR3-1333. Passmark benchmark score: 2,742 points. Launch price was $800.

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Processing Power

The Core i7-5550U packs 2 cores / 4 threads, while the Xeon L3426 offers 4 cores / 8 threads — the Xeon L3426 has 2 more cores. Boost clocks reach 3 GHz on the Core i7-5550U versus 3.2 GHz on the Xeon L3426 — a 6.5% clock advantage for the Xeon L3426 (base: 2 GHz vs 1.86 GHz). The Core i7-5550U is built on the Broadwell-U (2015) architecture. In PassMark, the Core i7-5550U scores 2,780 against the Xeon L3426's 2,742 — a 1.4% lead for the Core i7-5550U. L3 cache: 4 MB (total) on the Core i7-5550U vs 8 MB Intel® Smart Cache on the Xeon L3426.

Feature	Core i7-5550U	Xeon L3426
Cores / Threads	2 / 4	4 / 8+100%
Boost Clock	3 GHz	3.2 GHz+7%
Base Clock	2 GHz+8%	1.86 GHz
L3 Cache	4 MB (total)	8 MB Intel® Smart Cache+100%
L2 Cache	256K (per core)	—
Process	14 nm-69%	45 nm
Architecture	Broadwell-U (2015)	—
PassMark	2,780+1%	2,742

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Memory & Platform

The Core i7-5550U uses the FCBGA1168 socket (PCIe 3.0), while the Xeon L3426 uses LGA1156 (PCIe 2.0) — making them incompatible on the same motherboard.