Xeon E-2456 vs Xeon W-2155

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-2456 vs Xeon W-2155 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-2456 vs Xeon W-2155: 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-2456

2023

Why buy it

✅+30.9% larger total L3 cache (18 MB vs 14 MB).
✅Draws 80W instead of 140W, a 60W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

❌Lower PassMark (20,705 vs 20,858).

Xeon W-2155

2017

Why buy it

✅+0.7% higher PassMark.

Trade-offs

❌Smaller total L3 cache (14 MB vs 18 MB).
❌Launch MSRP is still $1,440 MSRP, while Xeon E-2456 mostly shows up through inconsistent older-market listings.
❌75% higher power demand at 140W vs 80W.
❌Older platform position on LGA2066 with DDR4, while Xeon E-2456 moves to LGA1700 and DDR5.

Quick Answers

So, is Xeon E-2456 better than Xeon W-2155?

It depends on what you want from the system. For gaming, Xeon E-2456 is ahead with a 2.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon W-2155 pulls ahead with 0.7% better PassMark. Xeon E-2456 also has the bigger cache pool with 30.9% larger total L3 cache (18 MB vs 14 MB).

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

For streaming, content creation, and heavier multitasking, Xeon W-2155 is the stronger fit. You are getting 0.7% better PassMark, backed by 10 cores and 20 threads.

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

Xeon E-2456 is still the faster CPU overall, but Xeon W-2155 is easier to justify if budget matters more than peak performance. Xeon E-2456 comes in at an unclear MSRP at unclear MSRP versus $1,440 MSRP, and it still gives you a 2.6% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon W-2155 is still stronger for heavier multi-core work with 0.7% better PassMark. Xeon W-2155 is also 100.0% better value on MSRP (14.5 vs 0.0 PassMark/$), 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-2456 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2017), a healthier platform with LGA1700 and DDR5 instead of LGA2066, and 30.9% larger total L3 cache (18 MB vs 14 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Xeon E-2456 vs Xeon W-2155 Technical Specifications

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

Xeon E-2456

The Xeon E-2456 is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 3.3 GHz, with boost up to 5.1 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 80 Watt. Memory support: DDR5-4800. Passmark benchmark score: 20,705 points. Launch price was $375.

Xeon W-2155

The Xeon W-2155 is manufactured by Intel. It was released in 29 August 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 10 cores and 20 threads. Base frequency is 3.3 GHz, with boost up to 4.5 GHz. L3 cache: 13.75 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666. Passmark benchmark score: 20,858 points. Launch price was $1,440.

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Processing Power

The Xeon E-2456 packs 6 cores / 12 threads, while the Xeon W-2155 offers 10 cores / 20 threads — the Xeon W-2155 has 4 more cores. Boost clocks reach 5.1 GHz on the Xeon E-2456 versus 4.5 GHz on the Xeon W-2155 — a 12.5% clock advantage for the Xeon E-2456 (base: 3.3 GHz vs 3.3 GHz). The Xeon E-2456 uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Xeon W-2155 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Xeon E-2456 scores 20,705 against the Xeon W-2155's 20,858 — a 0.7% lead for the Xeon W-2155. L3 cache: 18 MB (total) on the Xeon E-2456 vs 13.75 MB (total) on the Xeon W-2155.

Feature	Xeon E-2456	Xeon W-2155
Cores / Threads	6 / 12	10 / 20+67%
Boost Clock	5.1 GHz+13%	4.5 GHz
Base Clock	3.3 GHz	3.3 GHz
L3 Cache	18 MB (total)+31%	13.75 MB (total)
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	Intel 7 nm-50%	14 nm
Architecture	Raptor Lake-S (2023−2024)	Skylake (server) (2017−2018)
PassMark	20,705	20,858

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Memory & Platform

The Xeon E-2456 uses the LGA1700 socket (PCIe 5.0), while the Xeon W-2155 uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.