Xeon E5-2643 v2 vs Xeon Silver 4108

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 E5-2643 v2 vs Xeon Silver 4108 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 E5-2643 v2 vs Xeon Silver 4108: Pros, Cons & Final Verdict

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

Xeon E5-2643 v2

2013

Why buy it

✅+36.4% larger total L3 cache (15 MB vs 11 MB).

Trade-offs

❌Lower PassMark (9,172 vs 9,177).
❌52.9% higher power demand at 130W vs 85W.

Xeon Silver 4108

2017

Why buy it

✅+0.1% higher PassMark.
✅Draws 85W instead of 130W, a 45W reduction.

Trade-offs

❌Smaller total L3 cache (11 MB vs 15 MB).
❌Launch MSRP is still $417 MSRP, while Xeon E5-2643 v2 mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Xeon Silver 4108 better than Xeon E5-2643 v2?

It depends on what you want from the system. For gaming, Xeon E5-2643 v2 is ahead with a 1.7% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon Silver 4108 pulls ahead with 0.1% better PassMark. Xeon E5-2643 v2 also has the bigger cache pool with 36.4% larger total L3 cache (15 MB vs 11 MB).

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

For streaming, content creation, and heavier multitasking, Xeon Silver 4108 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 Silver 4108 is the better buy right now. Xeon Silver 4108 comes in at an unclear MSRP at $417 MSRP versus unclear MSRP, and it still gives you 0.1% better PassMark. The compromise is that Xeon E5-2643 v2 is still the better pure gaming CPU with a 1.7% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (22.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Xeon Silver 4108 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2013) and more multi-core headroom with 8 cores / 16 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Xeon E5-2643 v2 vs Xeon Silver 4108 Technical Specifications

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

Xeon E5-2643 v2

The Xeon E5-2643 v2 is manufactured by Intel. It was released in 1 September 2013 (12 years ago). It is based on the Ivy Bridge-EP (2013) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 3.8 GHz. L3 cache: 15 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 9,172 points. Launch price was $2,200.

Xeon Silver 4108

The Xeon Silver 4108 is manufactured by Intel. It was released in 11 July 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 8 cores and 16 threads. Base frequency is 1.8 GHz, with boost up to 3 GHz. L3 cache: 11 MB. L2 cache: 8 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 85 Watt. Memory support: DDR4-2400. Passmark benchmark score: 9,177 points. Launch price was $417.

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Processing Power

The Xeon E5-2643 v2 packs 6 cores / 12 threads, while the Xeon Silver 4108 offers 8 cores / 16 threads — the Xeon Silver 4108 has 2 more cores. Boost clocks reach 3.8 GHz on the Xeon E5-2643 v2 versus 3 GHz on the Xeon Silver 4108 — a 23.5% clock advantage for the Xeon E5-2643 v2 (base: 3.5 GHz vs 1.8 GHz). The Xeon E5-2643 v2 uses the Ivy Bridge-EP (2013) architecture (22 nm), while the Xeon Silver 4108 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Xeon E5-2643 v2 scores 9,172 against the Xeon Silver 4108's 9,177 — a 0.1% lead for the Xeon Silver 4108. L3 cache: 15 MB (total) on the Xeon E5-2643 v2 vs 11 MB on the Xeon Silver 4108.

Feature	Xeon E5-2643 v2	Xeon Silver 4108
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	3.8 GHz+27%	3 GHz
Base Clock	3.5 GHz+94%	1.8 GHz
L3 Cache	15 MB (total)+36%	11 MB
L2 Cache	256 kB (per core)	8 MB+3100%
Process	22 nm	14 nm-36%
Architecture	Ivy Bridge-EP (2013)	Skylake (server) (2017−2018)
PassMark	9,172	9,177

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Memory & Platform

The Xeon E5-2643 v2 uses the LGA2011 socket (PCIe 5.0), while the Xeon Silver 4108 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.