Xeon E5-2643 v4 vs Xeon Silver 4208

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 v4 vs Xeon Silver 4208 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 v4 vs Xeon Silver 4208: 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 v4

2016

Why buy it

✅+81.8% larger total L3 cache (20 MB vs 11 MB).

Trade-offs

❌Lower PassMark (11,024 vs 11,040).
❌Launch MSRP is still $1,552 MSRP, while Xeon Silver 4208 mostly shows up through inconsistent older-market listings.
❌58.8% higher power demand at 135W vs 85W.

Xeon Silver 4208

2019

Why buy it

✅+0.1% higher PassMark.
✅Draws 85W instead of 135W, a 50W reduction.
✅100+% more PCIe lanes (48 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Smaller total L3 cache (11 MB vs 20 MB).

Quick Answers

So, is Xeon Silver 4208 better than Xeon E5-2643 v4?

It depends on what you want from the system. For gaming, Xeon E5-2643 v4 is ahead with a 0.7% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon Silver 4208 pulls ahead with 0.1% better PassMark. Xeon E5-2643 v4 also has the bigger cache pool with 81.8% larger total L3 cache (20 MB vs 11 MB).

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

For streaming, content creation, and heavier multitasking, Xeon Silver 4208 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 4208 is still the faster CPU overall, but Xeon E5-2643 v4 is easier to justify if budget matters more than peak performance. Xeon Silver 4208 comes in at an unclear MSRP at unclear MSRP versus $1,552 MSRP, and it still gives you 0.1% better PassMark. The compromise is that Xeon E5-2643 v4 is still the better pure gaming CPU with a 0.7% average FPS lead across 50 shared CPU game tests in our data. Xeon E5-2643 v4 is also 100.0% better value on MSRP (7.1 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon Silver 4208 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2016), more multi-core headroom with 8 cores / 16 threads instead of 6/12, and AVX-512 support for heavier modern compute workloads. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Xeon E5-2643 v4 vs Xeon Silver 4208 Technical Specifications

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

Xeon E5-2643 v4

The Xeon E5-2643 v4 is manufactured by Intel. It was released in 20 June 2016 (9 years ago). It is based on the Broadwell (2015−2019) architecture. It features 6 cores and 12 threads. Base frequency is 3.4 GHz, with boost up to 3.7 GHz. L3 cache: 20 MB. L2 cache: 1.5 MB. Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 135 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400. Passmark benchmark score: 11,024 points. Launch price was $1,552.

Xeon Silver 4208

The Xeon Silver 4208 is manufactured by Intel. It was released in 2 April 2019 (6 years ago). It is based on the Cascade Lake (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 3.2 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: 11,040 points. Launch price was $417.

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Processing Power

The Xeon E5-2643 v4 packs 6 cores / 12 threads, while the Xeon Silver 4208 offers 8 cores / 16 threads — the Xeon Silver 4208 has 2 more cores. Boost clocks reach 3.7 GHz on the Xeon E5-2643 v4 versus 3.2 GHz on the Xeon Silver 4208 — a 14.5% clock advantage for the Xeon E5-2643 v4 (base: 3.4 GHz vs 2.1 GHz). The Xeon E5-2643 v4 uses the Broadwell (2015−2019) architecture (14 nm), while the Xeon Silver 4208 uses Cascade Lake (2019−2020) (14 nm). In PassMark, the Xeon E5-2643 v4 scores 11,024 against the Xeon Silver 4208's 11,040 — a 0.1% lead for the Xeon Silver 4208. L3 cache: 20 MB on the Xeon E5-2643 v4 vs 11 MB on the Xeon Silver 4208.

Feature	Xeon E5-2643 v4	Xeon Silver 4208
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	3.7 GHz+16%	3.2 GHz
Base Clock	3.4 GHz+62%	2.1 GHz
L3 Cache	20 MB+82%	11 MB
L2 Cache	1.5 MB	8 MB+433%
Process	14 nm	14 nm
Architecture	Broadwell (2015−2019)	Cascade Lake (2019−2020)
PassMark	11,024	11,040

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Memory & Platform

The Xeon E5-2643 v4 uses the LGA2011 socket (PCIe 5.0), while the Xeon Silver 4208 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.