Pentium 6805 vs Xeon L5639

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.

Pentium 6805 vs Xeon L5639 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.

Pentium 6805 vs Xeon L5639: Pros, Cons & Final Verdict

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

Pentium 6805

2020

Why buy it

✅+0.1% higher PassMark.
✅Draws 15W instead of 60W, a 45W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon L5639 across 42 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 12 MB).
❌Less compelling for workstation-style loads than Xeon L5639, which brings 6 cores / 12 threads.
❌Launch MSRP is still $161 MSRP, while Xeon L5639 mostly shows up through inconsistent older-market listings.

Xeon L5639

2011

Why buy it

✅Better for gaming: +10.3% higher average FPS across 42 shared CPU benchmark tests.
✅+200% larger total L3 cache (12 MB vs 4 MB).
✅Better for workstations and heavier parallel workloads: 6 cores / 12 threads.

Trade-offs

❌Lower PassMark (4,419 vs 4,424).
❌300% higher power demand at 60W vs 15W.

Quick Answers

So, is Pentium 6805 better than Xeon L5639?

Not really, because they are built for different jobs. Xeon L5639 makes more sense for workstation-style multi-core throughput, while Pentium 6805 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, Pentium 6805 is the stronger fit. You are getting 0.1% better PassMark, backed by 2 cores and 4 threads.

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

Pentium 6805 is the better buy right now. Pentium 6805 comes in at an unclear MSRP at $161 MSRP versus unclear MSRP, and it still gives you 0.1% better PassMark. The compromise is that Xeon L5639 is still the better pure gaming CPU with a 10.3% average FPS lead across 42 shared CPU game tests in our data. It is also 100.0% better value on MSRP (27.5 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium 6805 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2011) and more multi-core headroom with 2 cores / 4 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Pentium 6805 vs Xeon L5639 Technical Specifications

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

Pentium 6805

The Pentium 6805 is manufactured by Intel. It was released in 1 October 2020 (5 years ago). It is based on the Ice Lake-Y (2020) architecture. It features 2 cores and 4 threads. Base frequency is 1.1 GHz, with boost up to 3 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 10 nm process technology. Socket: FCBGA1526. Thermal design power (TDP): 15 Watt. Memory support: DDR4-3200, LPDDR4-3733. Passmark benchmark score: 4,424 points. Launch price was $161.

Xeon L5639

The Xeon L5639 is manufactured by Intel. It was released in 2015-01-01. It is based on the Westmere-EP (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 2.133 GHz, with boost up to 2.67 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 60 Watt. Memory support: DDR3. Passmark benchmark score: 4,419 points. Launch price was $800.

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Processing Power

The Pentium 6805 packs 2 cores / 4 threads, while the Xeon L5639 offers 6 cores / 12 threads — the Xeon L5639 has 4 more cores. Boost clocks reach 3 GHz on the Pentium 6805 versus 2.67 GHz on the Xeon L5639 — a 11.6% clock advantage for the Pentium 6805 (base: 1.1 GHz vs 2.133 GHz). The Pentium 6805 uses the Ice Lake-Y (2020) architecture (10 nm), while the Xeon L5639 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Pentium 6805 scores 4,424 against the Xeon L5639's 4,419 — a 0.1% lead for the Pentium 6805. L3 cache: 4 MB (total) on the Pentium 6805 vs 12 MB (total) on the Xeon L5639.

Feature	Pentium 6805	Xeon L5639
Cores / Threads	2 / 4	6 / 12+200%
Boost Clock	3 GHz+12%	2.67 GHz
Base Clock	1.1 GHz	2.133 GHz+94%
L3 Cache	4 MB (total)	12 MB (total)+200%
L2 Cache	256 kB (per core)	256 kB (per core)
Process	10 nm-69%	32 nm
Architecture	Ice Lake-Y (2020)	Westmere-EP (2010−2011)
PassMark	4,424	4,419

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Memory & Platform

The Pentium 6805 uses the FCBGA1526 socket (PCIe 3.0), while the Xeon L5639 uses LGA1366 (PCIe 4.0) — making them incompatible on the same motherboard.