Pentium Silver N6005 vs Xeon E5-2643

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 Silver N6005 vs Xeon E5-2643 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 Silver N6005 vs Xeon E5-2643: Pros, Cons & Final Verdict

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

Pentium Silver N6005

2021

Why buy it

✅+0.5% higher PassMark.
✅Draws 10W instead of 130W, a 120W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E5-2643 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 10 MB).
❌Less compelling for workstation-style loads than Xeon E5-2643, which brings 4 cores / 8 threads.

Xeon E5-2643

2012

Why buy it

✅Better for gaming: +22.0% higher average FPS across 50 shared CPU benchmark tests.
✅+150% larger total L3 cache (10 MB vs 4 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Lower PassMark (5,228 vs 5,253).
❌Launch MSRP is still $1,552 MSRP, while Pentium Silver N6005 mostly shows up through inconsistent older-market listings.
❌1200% higher power demand at 130W vs 10W.

Quick Answers

So, is Pentium Silver N6005 better than Xeon E5-2643?

Not really, because they are built for different jobs. Xeon E5-2643 makes more sense for workstation-style multi-core throughput, while Pentium Silver N6005 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 Silver N6005 is the stronger fit. You are getting 0.5% better PassMark, backed by 4 cores and 4 threads.

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

Pentium Silver N6005 is still the faster CPU overall, but Xeon E5-2643 is easier to justify if budget matters more than peak performance. Pentium Silver N6005 comes in at an unclear MSRP at unclear MSRP versus $1,552 MSRP, and it still gives you 0.5% better PassMark. The compromise is that Xeon E5-2643 is still the better pure gaming CPU with a 22.0% average FPS lead across 50 shared CPU game tests in our data. Xeon E5-2643 is also 100.0% better value on MSRP (3.4 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Pentium Silver N6005 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2012) and more multi-core headroom with 4 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.

Pentium Silver N6005 vs Xeon E5-2643 Technical Specifications

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

Pentium Silver N6005

The Pentium Silver N6005 is manufactured by Intel. It was released in 2007-01-01. It is based on the Jasper Lake (2021) architecture. It features 4 cores and 4 threads. Base frequency is 2 GHz, with boost up to 3.3 GHz. L3 cache: 4 MB (total). L2 cache: 1.5 MB (total). Built on 10 nm process technology. Socket: BGA1338. Thermal design power (TDP): 10 Watt. Memory support: DDR4. Passmark benchmark score: 5,253 points. Launch price was $69.

Xeon E5-2643

The Xeon E5-2643 is manufactured by Intel. It was released in 6 March 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 4 cores and 8 threads. Base frequency is 3.3 GHz, with boost up to 3.5 GHz. L3 cache: 10240 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 5,228 points. Launch price was $218.

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Processing Power

The Pentium Silver N6005 packs 4 cores / 4 threads, matching the Xeon E5-2643's 4 cores. Boost clocks reach 3.3 GHz on the Pentium Silver N6005 versus 3.5 GHz on the Xeon E5-2643 — a 5.9% clock advantage for the Xeon E5-2643 (base: 2 GHz vs 3.3 GHz). The Pentium Silver N6005 uses the Jasper Lake (2021) architecture (10 nm), while the Xeon E5-2643 uses Sandy Bridge-EP (2012) (32 nm). In PassMark, the Pentium Silver N6005 scores 5,253 against the Xeon E5-2643's 5,228 — a 0.5% lead for the Pentium Silver N6005. L3 cache: 4 MB (total) on the Pentium Silver N6005 vs 10240 kB (total) on the Xeon E5-2643.

Feature	Pentium Silver N6005	Xeon E5-2643
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.3 GHz	3.5 GHz+6%
Base Clock	2 GHz	3.3 GHz+65%
L3 Cache	4 MB (total)	10240 kB (total)+150%
L2 Cache	1.5 MB (total)+500%	256 kB (per core)
Process	10 nm-69%	32 nm
Architecture	Jasper Lake (2021)	Sandy Bridge-EP (2012)
PassMark	5,253	5,228

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Memory & Platform

The Pentium Silver N6005 uses the BGA1338 socket (PCIe 4.0), while the Xeon E5-2643 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.