Core i5-8259U vs Xeon X7550

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 i5-8259U vs Xeon X7550 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 i5-8259U vs Xeon X7550: Pros, Cons & Final Verdict

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

Core i5-8259U

2018

Why buy it

✅Draws 28W instead of 130W, a 102W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon X7550 across 50 shared CPU benchmark tests.
❌Lower PassMark (7,843 vs 7,873).
❌Smaller total L3 cache (6 MB vs 18 MB).
❌Less compelling for workstation-style loads than Xeon X7550, which brings 8 cores / 16 threads.

Xeon X7550

2010

Why buy it

✅Better for gaming: +7.2% higher average FPS across 50 shared CPU benchmark tests.
✅+200% larger total L3 cache (18 MB vs 6 MB).
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads.

Trade-offs

❌Launch MSRP is still $1,500 MSRP, while Core i5-8259U mostly shows up through inconsistent older-market listings.
❌364.3% higher power demand at 130W vs 28W.

Quick Answers

So, is Xeon X7550 better than Core i5-8259U?

Not really, because they are built for different jobs. Xeon X7550 makes more sense for workstation-style multi-core throughput, while Core i5-8259U is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon X7550 is the better pick. According to our tests, it delivers 7.2% 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, Xeon X7550 is the stronger fit. You are getting 0.4% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 200% larger total L3 cache (18 MB vs 6 MB).

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

Xeon X7550 is the better buy right now. Xeon X7550 comes in at an unclear MSRP at $1,500 MSRP versus unclear MSRP, and it still gives you a 7.2% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (5.2 vs 0.0 PassMark/$), 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 i5-8259U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2010). That makes it the safer long-term bet.

Core i5-8259U vs Xeon X7550 Technical Specifications

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

Core i5-8259U

The Core i5-8259U is manufactured by Intel. It was released in 5 April 2018 (7 years ago). It is based on the Coffee Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.3 GHz, with boost up to 3.8 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 28 Watt. Memory support: DDR4. Passmark benchmark score: 7,843 points. Launch price was $320.

Xeon X7550

The Xeon X7550 is manufactured by Intel. It was released in 2015-01-01. It features 8 cores and 16 threads. Base frequency is 2 GHz, with boost up to 2.4 GHz. L3 cache: 18 MB L3 Cache. Built on 45 nm process technology. Socket: LGA1567. Thermal design power (TDP): 130 Watt. Memory support: DDR3-800, DDR3-978, DDR3-1066, DDR3-1333, Speed-1066. Passmark benchmark score: 7,873 points. Launch price was $800.

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Processing Power

The Core i5-8259U packs 4 cores / 8 threads, while the Xeon X7550 offers 8 cores / 16 threads — the Xeon X7550 has 4 more cores. Boost clocks reach 3.8 GHz on the Core i5-8259U versus 2.4 GHz on the Xeon X7550 — a 45.2% clock advantage for the Core i5-8259U (base: 2.3 GHz vs 2 GHz). The Core i5-8259U is built on the Coffee Lake-U (2018−2019) architecture. In PassMark, the Core i5-8259U scores 7,843 against the Xeon X7550's 7,873 — a 0.4% lead for the Xeon X7550. L3 cache: 6 MB (total) on the Core i5-8259U vs 18 MB L3 Cache on the Xeon X7550.

Feature	Core i5-8259U	Xeon X7550
Cores / Threads	4 / 8	8 / 16+100%
Boost Clock	3.8 GHz+58%	2.4 GHz
Base Clock	2.3 GHz+15%	2 GHz
L3 Cache	6 MB (total)	18 MB L3 Cache+200%
L2 Cache	256K (per core)	—
Process	14 nm-69%	45 nm
Architecture	Coffee Lake-U (2018−2019)	—
PassMark	7,843	7,873

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Memory & Platform

The Core i5-8259U uses the FCBGA1528 socket (PCIe 3.0), while the Xeon X7550 uses LGA1567 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i5-8259U	Xeon X7550
Socket	FCBGA1528	LGA1567
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	—	DDR3-1333
RAM Channels	—	4
ECC Support	—	Yes

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Advanced Features

Virtualization: not specified (Core i5-8259U) / VT-x, VT-d, EPT (Xeon X7550). Primary use case: Xeon X7550 targets Server. Direct competitor: Xeon X7550 rivals Core i7-980X.