Core i5-11600K vs Xeon W-11865MRE

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 i5-11600K vs Xeon W-11865MRE 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 i5-11600K vs Xeon W-11865MRE: Pros, Cons & Final Verdict

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

Core i5-11600K

2021

Why buy it

✅Better for gaming: +16.3% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $338 less on MSRP ($262 MSRP vs $600 MSRP).
✅Delivers 128.2% more PassMark for each dollar spent, at 74.5 vs 32.6 PassMark/$ ($262 MSRP vs $600 MSRP).
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 750, while Xeon W-11865MRE needs a discrete GPU.

Trade-offs

❌Lower PassMark (19,520 vs 19,589).
❌Smaller total L3 cache (12 MB vs 24 MB).
❌Less compelling for workstation-style loads than Xeon W-11865MRE, which brings 8 cores / 16 threads.
❌257.1% higher power demand at 125W vs 35W.

Xeon W-11865MRE

2021

Why buy it

✅+0.4% higher PassMark.
✅+100% larger total L3 cache (24 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads.
✅Draws 35W instead of 125W, a 90W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-11600K across 50 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 32.6 vs 74.5 PassMark/$ ($600 MSRP vs $262 MSRP).
❌No integrated graphics, while Core i5-11600K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon W-11865MRE better than Core i5-11600K?

Not really, because they are built for different jobs. Xeon W-11865MRE makes more sense for workstation-style multi-core throughput, while Core i5-11600K 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, Xeon W-11865MRE is the stronger fit. You are getting 0.4% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 100% larger total L3 cache (24 MB vs 12 MB).

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

Xeon W-11865MRE is still the faster CPU overall, but Core i5-11600K is easier to justify if budget matters more than peak performance. Xeon W-11865MRE comes in 129.0% more expensive on MSRP at $600 MSRP versus $262 MSRP, and it still gives you 0.4% better PassMark. The compromise is that Core i5-11600K is still the better pure gaming CPU with a 16.3% average FPS lead across 50 shared CPU game tests in our data. Core i5-11600K is also 128.2% better value on MSRP (74.5 vs 32.6 PassMark/$), 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 W-11865MRE is the safer long-term CPU choice because it gives you more room to grow and a better platform outlook.

Core i5-11600K vs Xeon W-11865MRE Technical Specifications

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

Core i5-11600K

The Core i5-11600K is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Rocket Lake (2021) architecture. It features 6 cores and 12 threads. Base frequency is 3.9 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 125 Watt. Memory support: DDR4. Passmark benchmark score: 19,520 points. Launch price was $299.

Xeon W-11865MRE

The Xeon W-11865MRE is manufactured by Intel. It was released in 26 August 2021 (4 years ago). It is based on the Tiger Lake-H (2021) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 4.7 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: FCBGA1787. Thermal design power (TDP): 35 Watt. Memory support: DDR4. Passmark benchmark score: 19,589 points. Launch price was $480.

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Processing Power

The Core i5-11600K packs 6 cores / 12 threads, while the Xeon W-11865MRE offers 8 cores / 16 threads — the Xeon W-11865MRE has 2 more cores. Boost clocks reach 4.9 GHz on the Core i5-11600K versus 4.7 GHz on the Xeon W-11865MRE — a 4.2% clock advantage for the Core i5-11600K (base: 3.9 GHz vs 2.1 GHz). The Core i5-11600K uses the Rocket Lake (2021) architecture (14 nm), while the Xeon W-11865MRE uses Tiger Lake-H (2021) (10 nm). In PassMark, the Core i5-11600K scores 19,520 against the Xeon W-11865MRE's 19,589 — a 0.4% lead for the Xeon W-11865MRE. L3 cache: 12 MB (total) on the Core i5-11600K vs 24 MB (total) on the Xeon W-11865MRE.

Feature	Core i5-11600K	Xeon W-11865MRE
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	4.9 GHz+4%	4.7 GHz
Base Clock	3.9 GHz+86%	2.1 GHz
L3 Cache	12 MB (total)	24 MB (total)+100%
L2 Cache	256K (per core)+20380%	1.25 MB (per core)
Process	14 nm	10 nm-29%
Architecture	Rocket Lake (2021)	Tiger Lake-H (2021)
PassMark	19,520	19,589

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Memory & Platform

The Core i5-11600K uses the LGA1200 socket (PCIe 4.0), while the Xeon W-11865MRE uses FCBGA1787 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i5-11600K	Xeon W-11865MRE
Socket	LGA1200	FCBGA1787
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-11600K) / not specified (Xeon W-11865MRE). The Core i5-11600K includes integrated graphics (UHD Graphics 750), while the Xeon W-11865MRE requires a dedicated GPU. Primary use case: Core i5-11600K targets Desktop.

Feature	Core i5-11600K	Xeon W-11865MRE
Integrated GPU	Yes	—
IGPU Model	UHD Graphics 750	—
Unlocked	Yes	—
AVX-512	Yes	—
Virtualization	VT-x, VT-d	—
Target Use	Desktop	—

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Value Analysis

At launch, the Core i5-11600K was priced at $262, while the Xeon W-11865MRE came in at $600. On launch pricing ($262 vs $600), Core i5-11600K was $338 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-11600K delivers 74.5 pts/$ vs 32.6 pts/$ for the Xeon W-11865MRE — making the Core i5-11600K the 78.1% better value option.

Feature	Core i5-11600K	Xeon W-11865MRE
MSRP	$262-56%	$600
Performance per Dollar	74.5+129%	32.6
Release Date	2021	2021

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