Xeon L5630 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.

Xeon L5630 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.

Xeon L5630 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.

Xeon L5630

2010

Why buy it

✅+0.4% higher PassMark.
✅+50% larger total L3 cache (12 MB vs 8 MB).
✅Draws 40W instead of 95W, a 55W reduction.

Trade-offs

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

Xeon X5550

2009

Why buy it

Trade-offs

❌Lower PassMark (3,036 vs 3,048).
❌Smaller total L3 cache (8 MB vs 12 MB).
❌137.5% higher power demand at 95W vs 40W.

Quick Answers

So, is Xeon L5630 better than Xeon X5550?

It depends on what you want from the system. For gaming, Xeon X5550 is ahead with a 1.6% average FPS lead across 16 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon L5630 pulls ahead with 0.4% better PassMark. Xeon L5630 also has the bigger cache pool with 50% larger total L3 cache (12 MB vs 8 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Xeon L5630 is the stronger fit. You are getting 0.4% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 50% larger total L3 cache (12 MB vs 8 MB).

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

Xeon L5630 still makes the most sense overall. Xeon L5630 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.4% better PassMark.

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

Xeon L5630 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2009), 50% larger total L3 cache (12 MB vs 8 MB), and 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.

Xeon L5630 vs Xeon X5550 Technical Specifications

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

Xeon L5630

The Xeon L5630 is manufactured by Intel. It was released in 16 March 2010 (15 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 8 threads. Base frequency is 2.13 GHz, with boost up to 2.4 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 40 Watt. Memory support: DDR3. Passmark benchmark score: 3,048 points. Launch price was $1,100.

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 Xeon L5630 and Xeon X5550 share an identical 4-core/8-thread configuration. Boost clocks reach 2.4 GHz on the Xeon L5630 versus 3.06 GHz on the Xeon X5550 — a 24.2% clock advantage for the Xeon X5550 (base: 2.13 GHz vs 2.66 GHz). The Xeon L5630 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Xeon X5550 uses Gainestown (2009−2010) (45 nm). In PassMark, the Xeon L5630 scores 3,048 against the Xeon X5550's 3,036 — a 0.4% lead for the Xeon L5630. L3 cache: 12 MB (total) on the Xeon L5630 vs 8 MB (total) on the Xeon X5550.

Feature	Xeon L5630	Xeon X5550
Cores / Threads	4 / 8	4 / 8
Boost Clock	2.4 GHz	3.06 GHz+28%
Base Clock	2.13 GHz	2.66 GHz+25%
L3 Cache	12 MB (total)+50%	8 MB (total)
L2 Cache	256 kB (per core)	256 kB (per core)
Process	32 nm-29%	45 nm
Architecture	Westmere-EP (2010−2011)	Gainestown (2009−2010)
PassMark	3,048	3,036

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Memory & Platform

Both processors use the LGA1366 socket with PCIe 4.0.

Feature	Xeon L5630	Xeon X5550
Socket	LGA1366	LGA1366
PCIe Generation	PCIe 4.0+100%	PCIe 2.0
Max RAM Speed	—	DDR3-1333
RAM Channels	—	3
ECC Support	—	Yes

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Advanced Features

Virtualization: not specified (Xeon L5630) / VT-x, VT-d, EPT (Xeon X5550). Primary use case: Xeon X5550 targets Workstation. Direct competitor: Xeon X5550 rivals Core i3-2100.