Core i5-8400 vs Xeon Gold 5222

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.

Core i5-8400 vs Xeon Gold 5222 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.

Core i5-8400 vs Xeon Gold 5222: Pros, Cons & Final Verdict

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

Core i5-8400

2017

Why buy it

✅Draws 65W instead of 105W, a 40W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Xeon Gold 5222 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 5222 across 50 shared CPU benchmark tests.
❌Lower PassMark (9,229 vs 9,348).
❌Smaller total L3 cache (9 MB vs 17 MB).
❌Less compelling for workstation-style loads than Xeon Gold 5222, which brings 4 cores / 8 threads.
❌Launch MSRP is still $182 MSRP, while Xeon Gold 5222 mostly shows up through inconsistent older-market listings.

Xeon Gold 5222

2019

Why buy it

✅Better for gaming: +22.4% higher average FPS across 50 shared CPU benchmark tests.
✅+83.3% larger total L3 cache (17 MB vs 9 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌61.5% higher power demand at 105W vs 65W.
❌No integrated graphics, while Core i5-8400 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon Gold 5222 better than Core i5-8400?

Not really, because they are built for different jobs. Xeon Gold 5222 makes more sense for workstation-style multi-core throughput, while Core i5-8400 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon Gold 5222 is the better pick. According to our tests, it delivers 22.4% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon Gold 5222 is the stronger fit. You are getting 1.3% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 83.3% larger total L3 cache (17 MB vs 9 MB).

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

Xeon Gold 5222 is still the much better call for a fresh build. Xeon Gold 5222 comes in at an unclear MSRP at unclear MSRP versus $182 MSRP, and it still gives you a 22.4% average FPS lead across 50 shared CPU game tests in our data. Core i5-8400 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2017 platform. Even with 100.0% better value on paper (50.7 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1151.

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

Xeon Gold 5222 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2017), 83.3% larger total L3 cache (17 MB vs 9 MB), and more multi-core headroom with 4 cores / 8 threads instead of 6/6. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-8400 vs Xeon Gold 5222 Technical Specifications

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

Core i5-8400

The Core i5-8400 is manufactured by Intel. It was released in 5 October 2017 (8 years ago). It is based on the Coffee Lake-S (2017−2018) architecture. It features 6 cores and 6 threads. Base frequency is 2.8 GHz, with boost up to 4 GHz. L3 cache: 9 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 65 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 9,229 points. Launch price was $182.

Xeon Gold 5222

The Xeon Gold 5222 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 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 3.9 GHz. L3 cache: 16.5 MB. L2 cache: 4 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 105 Watt. Memory support: DDR4-2933. Passmark benchmark score: 9,348 points. Launch price was $1,221.

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Processing Power

The Core i5-8400 packs 6 cores / 6 threads, while the Xeon Gold 5222 offers 4 cores / 8 threads — the Core i5-8400 has 2 more cores. Boost clocks reach 4 GHz on the Core i5-8400 versus 3.9 GHz on the Xeon Gold 5222 — a 2.5% clock advantage for the Core i5-8400 (base: 2.8 GHz vs 3.8 GHz). The Core i5-8400 uses the Coffee Lake-S (2017−2018) architecture (14 nm), while the Xeon Gold 5222 uses Cascade Lake (2019−2020) (14 nm). In PassMark, the Core i5-8400 scores 9,229 against the Xeon Gold 5222's 9,348 — a 1.3% lead for the Xeon Gold 5222. L3 cache: 9 MB (total) on the Core i5-8400 vs 16.5 MB on the Xeon Gold 5222.

Feature	Core i5-8400	Xeon Gold 5222
Cores / Threads	6 / 6+50%	4 / 8
Boost Clock	4 GHz+3%	3.9 GHz
Base Clock	2.8 GHz	3.8 GHz+36%
L3 Cache	9 MB (total)	16.5 MB+83%
L2 Cache	256K (per core)+6300%	4 MB
Process	14 nm	14 nm
Architecture	Coffee Lake-S (2017−2018)	Cascade Lake (2019−2020)
PassMark	9,229	9,348+1%

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Memory & Platform

The Core i5-8400 uses the LGA1151 socket (PCIe 3.0), while the Xeon Gold 5222 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-8400	Xeon Gold 5222
Socket	LGA1151	LGA3647
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-8400) / not specified (Xeon Gold 5222). The Core i5-8400 includes integrated graphics (UHD Graphics 630), while the Xeon Gold 5222 requires a dedicated GPU. Primary use case: Core i5-8400 targets Desktop.