Ryzen 3 5400U vs Xeon E5-4655 v4

Ryzen 3 5400U vs Xeon E5-4655 v4 Performance Spectrum

Ryzen 3 5400U

4 / 8

11,002

+0.8%

Ryzen Threadripper 2950X

Ryzen 9 7900

Ryzen 9 9950X

Ryzen Threadripper 9960X

Xeon E5-4655 v4

8 / 16

10,912

0.0%

About PassMark

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.

Ryzen 3 5400U vs Xeon E5-4655 v4 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.

Ryzen 3 5400U vs Xeon E5-4655 v4: Pros, Cons & Final Verdict

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

Ryzen 3 5400U

2021

Why buy it

✅+0.8% higher PassMark.
✅Draws 15W instead of 135W, a 120W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E5-4655 v4 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (8 MB vs 30 MB).
❌Less compelling for workstation-style loads than Xeon E5-4655 v4, which brings 8 cores / 16 threads and 40 PCIe lanes.

Xeon E5-4655 v4

2016

Why buy it

✅Better for gaming: +6.4% higher average FPS across 50 shared CPU benchmark tests.
✅+275% larger total L3 cache (30 MB vs 8 MB).
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads, plus 40 PCIe lanes vs 0.
✅100+% more PCIe lanes (40 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (10,912 vs 11,002).
❌Launch MSRP is still $4,616 MSRP, while Ryzen 3 5400U mostly shows up through inconsistent older-market listings.
❌800% higher power demand at 135W vs 15W.

Quick Answers

So, is Ryzen 3 5400U better than Xeon E5-4655 v4?

Not really, because they are built for different jobs. Xeon E5-4655 v4 makes more sense for workstation-style multi-core throughput, while Ryzen 3 5400U 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, Ryzen 3 5400U is the stronger fit. You are getting 0.8% better PassMark, backed by 4 cores and 8 threads.

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

Ryzen 3 5400U is still the faster CPU overall, but Xeon E5-4655 v4 is easier to justify if budget matters more than peak performance. Ryzen 3 5400U comes in at an unclear MSRP at unclear MSRP versus $4,616 MSRP, and it still gives you 0.8% better PassMark. The compromise is that Xeon E5-4655 v4 is still the better pure gaming CPU with a 6.4% average FPS lead across 50 shared CPU game tests in our data. Xeon E5-4655 v4 is also 100.0% better value on MSRP (2.4 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Ryzen 3 5400U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2016) and more multi-core headroom with 4 cores / 8 threads instead of 8/16. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Ryzen 3 5400U vs Xeon E5-4655 v4 Technical Specifications

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

Ryzen 3 5400U

The Ryzen 3 5400U is manufactured by AMD. It was released in 12 January 2021 (4 years ago). It is based on the Cezanne-U (Zen 3) (2021) architecture. It features 4 cores and 8 threads. Base frequency is 2.6 GHz, with boost up to 4 GHz. L3 cache: 8 MB (total). L2 cache: 512K (per core). Built on 7 nm process technology. Socket: FP6. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 11,002 points. Launch price was $149.

Xeon E5-4655 v4

The Xeon E5-4655 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 8 cores and 16 threads. Base frequency is 2.5 GHz, with boost up to 3.2 GHz. L3 cache: 30 MB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 135 Watt. Memory support: DDR4. Passmark benchmark score: 10,912 points. Launch price was $4,616.

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Processing Power

The Ryzen 3 5400U packs 4 cores / 8 threads, while the Xeon E5-4655 v4 offers 8 cores / 16 threads — the Xeon E5-4655 v4 has 4 more cores. Boost clocks reach 4 GHz on the Ryzen 3 5400U versus 3.2 GHz on the Xeon E5-4655 v4 — a 22.2% clock advantage for the Ryzen 3 5400U (base: 2.6 GHz vs 2.5 GHz). The Ryzen 3 5400U uses the Cezanne-U (Zen 3) (2021) architecture (7 nm), while the Xeon E5-4655 v4 uses Broadwell (2015−2019) (14 nm). In PassMark, the Ryzen 3 5400U scores 11,002 against the Xeon E5-4655 v4's 10,912 — a 0.8% lead for the Ryzen 3 5400U. L3 cache: 8 MB (total) on the Ryzen 3 5400U vs 30 MB on the Xeon E5-4655 v4.

Feature	Ryzen 3 5400U	Xeon E5-4655 v4
Cores / Threads	4 / 8	8 / 16+100%
Boost Clock	4 GHz+25%	3.2 GHz
Base Clock	2.6 GHz+4%	2.5 GHz
L3 Cache	8 MB (total)	30 MB+275%
L2 Cache	512K (per core)+25500%	2 MB
Process	7 nm-50%	14 nm
Architecture	Cezanne-U (Zen 3) (2021)	Broadwell (2015−2019)
PassMark	11,002	10,912

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Memory & Platform

The Ryzen 3 5400U uses the FP6 socket (PCIe 4.0), while the Xeon E5-4655 v4 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Ryzen 3 5400U	Xeon E5-4655 v4
Socket	FP6	LGA2011
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	—	DDR4-2400
Max RAM Capacity	—	1536 GB
RAM Channels	—	4
ECC Support	—	Yes
PCIe Lanes	—	40