Xeon Gold 6142 vs Xeon Gold 6209U

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 Gold 6142 vs Xeon Gold 6209U 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 Gold 6142 vs Xeon Gold 6209U: Pros, Cons & Final Verdict

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

Xeon Gold 6142

2017

Why buy it

✅+0.2% higher PassMark.
✅100+% more PCIe lanes (48 vs 0) for storage and expansion-heavy builds.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Smaller total L3 cache (22 MB vs 28 MB).
❌20% higher power demand at 150W vs 125W.

Xeon Gold 6209U

2019

Why buy it

✅+25% larger total L3 cache (28 MB vs 22 MB).
✅Draws 125W instead of 150W, a 25W reduction.

Trade-offs

❌Lower PassMark (25,430 vs 25,490).
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Quick Answers

So, is Xeon Gold 6209U better than Xeon Gold 6142?

It depends on what you want from the system. For gaming, Xeon Gold 6209U is ahead with a 0.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon Gold 6142 pulls ahead with 0.2% better PassMark. Xeon Gold 6209U also has the bigger cache pool with 25% larger total L3 cache (28 MB vs 22 MB).

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

For streaming, content creation, and heavier multitasking, Xeon Gold 6142 is the stronger fit. You are getting 0.2% better PassMark, backed by 16 cores and 32 threads.

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

Xeon Gold 6209U still makes the most sense overall. Xeon Gold 6209U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data.

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

Xeon Gold 6209U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2017) and 25% larger total L3 cache (28 MB vs 22 MB). That makes it the safer long-term bet.

Xeon Gold 6142 vs Xeon Gold 6209U Technical Specifications

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

Xeon Gold 6142

The Xeon Gold 6142 is manufactured by Intel. It was released in 25 April 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 16 cores and 32 threads. Base frequency is 2.6 GHz, with boost up to 3.7 GHz. L3 cache: 22 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 150 Watt. Memory support: DDR4-2666. Passmark benchmark score: 25,490 points. Launch price was $2,946.

Xeon Gold 6209U

The Xeon Gold 6209U 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 20 cores and 40 threads. Base frequency is 2.1 GHz, with boost up to 3.9 GHz. L3 cache: 27.5 MB. L2 cache: 20 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 125 Watt. Memory support: DDR4-2933. Passmark benchmark score: 25,430 points. Launch price was $1,350.

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Processing Power

The Xeon Gold 6142 packs 16 cores / 32 threads, while the Xeon Gold 6209U offers 20 cores / 40 threads — the Xeon Gold 6209U has 4 more cores. Boost clocks reach 3.7 GHz on the Xeon Gold 6142 versus 3.9 GHz on the Xeon Gold 6209U — a 5.3% clock advantage for the Xeon Gold 6209U (base: 2.6 GHz vs 2.1 GHz). The Xeon Gold 6142 uses the Skylake (server) (2017−2018) architecture (14 nm), while the Xeon Gold 6209U uses Cascade Lake (2019−2020) (14 nm). In PassMark, the Xeon Gold 6142 scores 25,490 against the Xeon Gold 6209U's 25,430 — a 0.2% lead for the Xeon Gold 6142. L3 cache: 22 MB on the Xeon Gold 6142 vs 27.5 MB on the Xeon Gold 6209U.

Feature	Xeon Gold 6142	Xeon Gold 6209U
Cores / Threads	16 / 32	20 / 40+25%
Boost Clock	3.7 GHz	3.9 GHz+5%
Base Clock	2.6 GHz+24%	2.1 GHz
L3 Cache	22 MB	27.5 MB+25%
L2 Cache	16 MB	20 MB+25%
Process	14 nm	14 nm
Architecture	Skylake (server) (2017−2018)	Cascade Lake (2019−2020)
PassMark	25,490	25,430