Core i7-7820X vs Xeon E-2378

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 i7-7820X vs Xeon E-2378 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 i7-7820X vs Xeon E-2378: Pros, Cons & Final Verdict

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

Core i7-7820X

2017

Why buy it

✅+0.6% higher PassMark.

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).
❌Less compelling for workstation-style loads than Xeon E-2378, which brings 8 cores / 16 threads and 20 PCIe lanes.
❌Lower PassMark per dollar, at 28.7 vs 47.2 PassMark/$ ($599 MSRP vs $362 MSRP).
❌115.4% higher power demand at 140W vs 65W.

Xeon E-2378

2021

Why buy it

✅Better for gaming: +3.6% higher average FPS across 50 shared CPU benchmark tests.
✅+45.5% larger total L3 cache (16 MB vs 11 MB).
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads, plus 20 PCIe lanes vs 0.
✅Costs $237 less on MSRP ($362 MSRP vs $599 MSRP).
✅Delivers 64.5% more PassMark for each dollar spent, at 47.2 vs 28.7 PassMark/$ ($362 MSRP vs $599 MSRP).

Trade-offs

❌Lower PassMark (17,069 vs 17,171).

Quick Answers

So, is Xeon E-2378 better than Core i7-7820X?

Not really, because they are built for different jobs. Xeon E-2378 makes more sense for workstation-style multi-core throughput, while Core i7-7820X 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, Core i7-7820X is the stronger fit. You are getting 0.6% 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 the better buy right now. Xeon E-2378 comes in $237 cheaper on MSRP at $362 MSRP versus $599 MSRP, and it still gives you a 3.6% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Core i7-7820X is still stronger for heavier multi-core work with 0.6% better PassMark. It is also 64.5% better value on MSRP (47.2 vs 28.7 PassMark/$), so you are getting the faster CPU without taking a value hit 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.

Core i7-7820X vs Xeon E-2378 Technical Specifications

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

Core i7-7820X

The Core i7-7820X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.5 GHz. L3 cache: 11 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2666. Passmark benchmark score: 17,171 points. Launch price was $599.

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.

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Processing Power

Both the Core i7-7820X and Xeon E-2378 share an identical 8-core/16-thread configuration. Boost clocks reach 4.5 GHz on the Core i7-7820X versus 4.8 GHz on the Xeon E-2378 — a 6.5% clock advantage for the Xeon E-2378 (base: 3.6 GHz vs 2.6 GHz). The Core i7-7820X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Xeon E-2378 uses Rocket Lake-E (2021) (14 nm). In PassMark, the Core i7-7820X scores 17,171 against the Xeon E-2378's 17,069 — a 0.6% lead for the Core i7-7820X. L3 cache: 11 MB (total) on the Core i7-7820X vs 16 MB (total) on the Xeon E-2378.

Feature	Core i7-7820X	Xeon E-2378
Cores / Threads	8 / 16	8 / 16
Boost Clock	4.5 GHz	4.8 GHz+7%
Base Clock	3.6 GHz+38%	2.6 GHz
L3 Cache	11 MB (total)	16 MB (total)+45%
L2 Cache	1 MB (per core)	512K (per core)+51100%
Process	14 nm	14 nm
Architecture	Skylake (server) (2017−2018)	Rocket Lake-E (2021)
PassMark	17,171	17,069
Geekbench 6 Single	—	1,821
Geekbench 6 Multi	—	9,986

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Memory & Platform

The Core i7-7820X uses the LGA2066 socket (PCIe 3.0), while the Xeon E-2378 uses LGA1200 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i7-7820X	Xeon E-2378
Socket	LGA2066	LGA1200
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
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: not specified (Core i7-7820X) / Yes (Xeon E-2378).

Feature	Core i7-7820X	Xeon E-2378
Integrated GPU	—	No
AVX-512	—	Yes
Virtualization	—	Yes

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Value Analysis

At launch, the Core i7-7820X was priced at $599, while the Xeon E-2378 came in at $362. On launch pricing ($599 vs $362), Xeon E-2378 was $237 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-7820X delivers 28.7 pts/$ vs 47.2 pts/$ for the Xeon E-2378 — making the Xeon E-2378 the 48.8% better value option.

Feature	Core i7-7820X	Xeon E-2378
MSRP	$599	$362-40%
Performance per Dollar	28.7	47.2+64%
Release Date	2017	2021

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