Xeon E-2378 vs Xeon W-2140B

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 E-2378 vs Xeon W-2140B 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 E-2378 vs Xeon W-2140B: Pros, Cons & Final Verdict

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

Xeon E-2378

2021

Why buy it

✅Better for gaming: +14.0% higher average FPS across 50 shared CPU benchmark tests.
✅+45.5% larger total L3 cache (16 MB vs 11 MB).
✅Draws 65W instead of 120W, a 55W reduction.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (17,069 vs 17,319).
❌Lower PassMark per dollar, at 47.2 vs 58.9 PassMark/$ ($362 MSRP vs $294 MSRP).

Xeon W-2140B

2017

Why buy it

✅+1.5% higher PassMark.
✅Costs $68 less on MSRP ($294 MSRP vs $362 MSRP).
✅Delivers 24.9% more PassMark for each dollar spent, at 58.9 vs 47.2 PassMark/$ ($294 MSRP vs $362 MSRP).

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E-2378 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (11 MB vs 16 MB).
❌84.6% higher power demand at 120W vs 65W.

Quick Answers

So, is Xeon E-2378 better than Xeon W-2140B?

It depends on what you want from the system. For gaming, Xeon E-2378 is ahead with a 14.0% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon W-2140B pulls ahead with 1.5% better PassMark. Xeon E-2378 also has the bigger cache pool with 45.5% larger total L3 cache (16 MB vs 11 MB).

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

For streaming, content creation, and heavier multitasking, Xeon W-2140B is the stronger fit. You are getting 1.5% better PassMark, backed by 8 cores and 16 threads.

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

Xeon E-2378 is still the faster CPU overall, but Xeon W-2140B is easier to justify if budget matters more than peak performance. Xeon E-2378 comes in 23.1% more expensive on MSRP at $362 MSRP versus $294 MSRP, and it still gives you a 14.0% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon W-2140B is still stronger for heavier multi-core work with 1.5% better PassMark. Xeon W-2140B is also 24.9% better value on MSRP (58.9 vs 47.2 PassMark/$), 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 E-2378 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2017), 45.5% larger total L3 cache (16 MB vs 11 MB), and AVX-512 support for heavier modern compute workloads. That makes it the safer long-term bet.

Xeon E-2378 vs Xeon W-2140B Technical Specifications

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

Xeon E-2378

The Xeon E-2378 is manufactured by Intel. It was released in 2015-01-01. It is based on the Rocket Lake-E (2021) architecture. It features 8 cores and 16 threads. Base frequency is 2.6 GHz, with boost up to 4.8 GHz. L3 cache: 16 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 17,069 points. Launch price was $800.

Xeon W-2140B

The Xeon W-2140B is manufactured by Intel. It was released in 2015-01-01. It is based on the Skylake (server) (2017−2018) architecture. It features 8 cores and 16 threads. Base frequency is 3.2 GHz, with boost up to 4.2 GHz. L3 cache: 11 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 120 Watt. Memory support: DDR4-2666. Passmark benchmark score: 17,319 points. Launch price was $800.

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Processing Power

Both the Xeon E-2378 and Xeon W-2140B share an identical 8-core/16-thread configuration. Boost clocks reach 4.8 GHz on the Xeon E-2378 versus 4.2 GHz on the Xeon W-2140B — a 13.3% clock advantage for the Xeon E-2378 (base: 2.6 GHz vs 3.2 GHz). The Xeon E-2378 uses the Rocket Lake-E (2021) architecture (14 nm), while the Xeon W-2140B uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Xeon E-2378 scores 17,069 against the Xeon W-2140B's 17,319 — a 1.5% lead for the Xeon W-2140B. L3 cache: 16 MB (total) on the Xeon E-2378 vs 11 MB (total) on the Xeon W-2140B.

Feature	Xeon E-2378	Xeon W-2140B
Cores / Threads	8 / 16	8 / 16
Boost Clock	4.8 GHz+14%	4.2 GHz
Base Clock	2.6 GHz	3.2 GHz+23%
L3 Cache	16 MB (total)+45%	11 MB (total)
L2 Cache	512K (per core)+51100%	1 MB (per core)
Process	14 nm	14 nm
Architecture	Rocket Lake-E (2021)	Skylake (server) (2017−2018)
PassMark	17,069	17,319+1%
Geekbench 6 Single	1,821	—
Geekbench 6 Multi	9,986	—

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Memory & Platform

The Xeon E-2378 uses the LGA1200 socket (PCIe 4.0), while the Xeon W-2140B uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Xeon E-2378	Xeon W-2140B
Socket	LGA1200	LGA2066
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR4-3200	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: Yes (Xeon E-2378) / not specified (Xeon W-2140B).

Feature	Xeon E-2378	Xeon W-2140B
Integrated GPU	No	—
AVX-512	Yes	—
Virtualization	Yes	—

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Value Analysis

At launch, the Xeon E-2378 was priced at $362, while the Xeon W-2140B came in at $294. On launch pricing ($362 vs $294), Xeon W-2140B was $68 cheaper. In terms of value on MSRP (PassMark points per dollar), the Xeon E-2378 delivers 47.2 pts/$ vs 58.9 pts/$ for the Xeon W-2140B — making the Xeon W-2140B the 22.2% better value option.

Feature	Xeon E-2378	Xeon W-2140B
MSRP	$362	$294-19%
Performance per Dollar	47.2	58.9+25%
Release Date	2021	2017

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