Phenom II X4 X920 BE vs Xeon X6550

Phenom II X4 X920 BE vs Xeon X6550 Performance Spectrum

Phenom II X4 X920 BE

4 / 4

1,935

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Xeon X6550

1,936

+0.1%

About PassMark

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.

Phenom II X4 X920 BE vs Xeon X6550 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.

Phenom II X4 X920 BE vs Xeon X6550: Pros, Cons & Final Verdict

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

Phenom II X4 X920 BE

2010

Why buy it

✅Draws 2W instead of 130W, a 128W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon X6550 across 50 shared CPU benchmark tests.
❌Lower PassMark (1,935 vs 1,936).
❌Less compelling for workstation-style loads than Xeon X6550, which brings 8 cores / 16 threads.

Xeon X6550

2010

Why buy it

✅Better for gaming: +4.8% higher average FPS across 50 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads.

Trade-offs

❌6400% higher power demand at 130W vs 2W.

Quick Answers

So, is Xeon X6550 better than Phenom II X4 X920 BE?

Not really, because they are built for different jobs. Xeon X6550 makes more sense for workstation-style multi-core throughput, while Phenom II X4 X920 BE 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 X6550 is the better pick. According to our tests, it delivers 4.8% 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 X6550 is the stronger fit. You are getting 0.1% better PassMark, backed by 8 cores and 16 threads.

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

Xeon X6550 still makes the most sense overall. Xeon X6550 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 4.8% average FPS lead across 50 shared CPU game tests in our data.

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

Xeon X6550 makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 8 cores / 16 threads instead of 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Phenom II X4 X920 BE vs Xeon X6550 Technical Specifications

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

Phenom II X4 X920 BE

The Phenom II X4 X920 BE is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 4 cores and 4 threads. Max frequency: 2.3 GHz. L2 cache: 2 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 2 MB. Memory support: DDR3. Passmark benchmark score: 1,935 points. Launch price was $149.

Xeon X6550

The Xeon X6550 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. Passmark benchmark score: 1,936 points. Launch price was $800.

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Processing Power

The Phenom II X4 X920 BE packs 4 cores / 4 threads, while the Xeon X6550 offers 8 cores / 16 threads — the Xeon X6550 has 4 more cores. Boost clocks reach 2.3 GHz on the Phenom II X4 X920 BE versus 2.4 GHz on the Xeon X6550 — a 4.3% clock advantage for the Xeon X6550. The Phenom II X4 X920 BE is built on the Champlain (2010−2011) architecture. In PassMark, the Phenom II X4 X920 BE scores 1,935 against the Xeon X6550's 1,936 — a 0.1% lead for the Xeon X6550.

Feature	Phenom II X4 X920 BE	Xeon X6550
Cores / Threads	4 / 4	8 / 16+100%
Boost Clock	2.3 GHz	2.4 GHz+4%
Base Clock	—	2 GHz
L3 Cache	—	18 MB L3 Cache
L2 Cache	2 MB	—
Process	45 nm	45 nm
Architecture	Champlain (2010−2011)	—
PassMark	1,935	1,936

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Memory & Platform

The Phenom II X4 X920 BE uses the S1 socket (PCIe 2.0), while the Xeon X6550 uses LGA1567 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Phenom II X4 X920 BE	Xeon X6550
Socket	S1	LGA1567
PCIe Generation	PCIe 2.0	PCIe 5.0+150%
Max RAM Speed	—	DDR3-1333
RAM Channels	—	4
ECC Support	—	Yes

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Advanced Features

Virtualization: not specified (Phenom II X4 X920 BE) / VT-x, VT-d, EPT (Xeon X6550). Primary use case: Xeon X6550 targets Server. Direct competitor: Xeon X6550 rivals Core i7-980X.