Core i5-14400T 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.

Core i5-14400T 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.

Core i5-14400T 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.

Core i5-14400T

2024

Why buy it

✅+0.3% higher PassMark.
✅+45.5% larger total L3 cache (20 MB vs 14 MB).
✅Draws 35W instead of 140W, a 105W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon W-2155 across 50 shared CPU benchmark tests.
❌Less compelling for workstation-style loads than Xeon W-2155, which brings 10 cores / 20 threads.

Xeon W-2155

2017

Why buy it

✅Better for gaming: +9.2% higher average FPS across 50 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 10 cores / 20 threads.

Trade-offs

❌Lower PassMark (20,858 vs 20,911).
❌Smaller total L3 cache (14 MB vs 20 MB).
❌Launch MSRP is still $1,440 MSRP, while Core i5-14400T mostly shows up through inconsistent older-market listings.
❌300% higher power demand at 140W vs 35W.
❌Older platform position on LGA2066 with DDR4, while Core i5-14400T moves to LGA1700 and DDR5.

Quick Answers

So, is Core i5-14400T better than Xeon W-2155?

Not really, because they are built for different jobs. Xeon W-2155 makes more sense for workstation-style multi-core throughput, while Core i5-14400T 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 i5-14400T is the stronger fit. You are getting 0.3% better PassMark, backed by 10 cores and 16 threads. It also has the larger cache pool with 45.5% larger total L3 cache (20 MB vs 14 MB).

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

Core i5-14400T is still the faster CPU overall, but Xeon W-2155 is easier to justify if budget matters more than peak performance. Core i5-14400T comes in at an unclear MSRP at unclear MSRP versus $1,440 MSRP, and it still gives you 0.3% better PassMark. The compromise is that Xeon W-2155 is still the better pure gaming CPU with a 9.2% average FPS lead across 50 shared CPU game tests in our data. Xeon W-2155 is also 100.0% better value on MSRP (14.5 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Core i5-14400T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2017), a healthier platform with LGA1700 and DDR5 instead of LGA2066, 45.5% larger total L3 cache (20 MB vs 14 MB), and more multi-core headroom with 10 cores / 16 threads instead of 10/20. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-14400T vs Xeon W-2155 Technical Specifications

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

Core i5-14400T

The Core i5-14400T is manufactured by Intel. It was released in 8 January 2024 (1 year ago). It is based on the Raptor Lake-R (2023−2025) architecture. It features 10 cores and 16 threads. Base frequency is 1.5 GHz, with boost up to 4.5 GHz. L3 cache: 20 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 35 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 20,911 points. Launch price was $221.

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.

⚡

Processing Power

The Core i5-14400T packs 10 cores / 16 threads, matching the Xeon W-2155's 10 cores. Boost clocks reach 4.5 GHz on the Core i5-14400T versus 4.5 GHz on the Xeon W-2155 — identical boost frequencies (base: 1.5 GHz vs 3.3 GHz). The Core i5-14400T uses the Raptor Lake-R (2023−2025) architecture (Intel 7 nm), while the Xeon W-2155 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i5-14400T scores 20,911 against the Xeon W-2155's 20,858 — a 0.3% lead for the Core i5-14400T. L3 cache: 20 MB (total) on the Core i5-14400T vs 13.75 MB (total) on the Xeon W-2155.

Feature	Core i5-14400T	Xeon W-2155
Cores / Threads	10 / 16	10 / 20
Boost Clock	4.5 GHz	4.5 GHz
Base Clock	1.5 GHz	3.3 GHz+120%
L3 Cache	20 MB (total)+45%	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-R (2023−2025)	Skylake (server) (2017−2018)
PassMark	20,911	20,858

🧠

Memory & Platform

The Core i5-14400T uses the LGA1700 socket (PCIe 5.0), while the Xeon W-2155 uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.