Core i5-8259U vs Xeon D-1813NT

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 i5-8259U vs Xeon D-1813NT 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 i5-8259U vs Xeon D-1813NT: Pros, Cons & Final Verdict

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

Core i5-8259U

2018

Why buy it

✅Better for gaming: +3.8% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 28W instead of 42W, a 14W reduction.

Trade-offs

❌Smaller total L3 cache (6 MB vs 10 MB).

Xeon D-1813NT

2023

Why buy it

✅+66.7% larger total L3 cache (10 MB vs 6 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-8259U across 50 shared CPU benchmark tests.
❌Lower PassMark (7,732 vs 7,843).
❌50% higher power demand at 42W vs 28W.

Quick Answers

So, is Core i5-8259U better than Xeon D-1813NT?

Not really, because they are built for different jobs. Xeon D-1813NT makes more sense for workstation-style multi-core throughput, while Core i5-8259U is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Core i5-8259U is the better pick. According to our tests, it delivers 3.8% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i5-8259U is the stronger fit. You are getting 1.4% better PassMark, backed by 4 cores and 8 threads.

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

Core i5-8259U still makes the most sense overall. Core i5-8259U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 3.8% average FPS lead across 50 shared CPU game tests in our data.

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

Xeon D-1813NT makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2018) and 66.7% larger total L3 cache (10 MB vs 6 MB). That makes it the safer long-term bet.

Core i5-8259U vs Xeon D-1813NT Technical Specifications

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

Core i5-8259U

The Core i5-8259U is manufactured by Intel. It was released in 5 April 2018 (7 years ago). It is based on the Coffee Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.3 GHz, with boost up to 3.8 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 28 Watt. Memory support: DDR4. Passmark benchmark score: 7,843 points. Launch price was $320.

Xeon D-1813NT

The Xeon D-1813NT is manufactured by Intel. It was released in 2015-01-01. It features 4 cores and 8 threads. Base frequency is 2.2 GHz, with boost up to 2.4 GHz. L3 cache: 10240 kB. Socket: FCBGA2227. Thermal design power (TDP): 42 Watt. Memory support: DDR4. Passmark benchmark score: 7,732 points. Launch price was $800.

⚡

Processing Power

Both the Core i5-8259U and Xeon D-1813NT share an identical 4-core/8-thread configuration. Boost clocks reach 3.8 GHz on the Core i5-8259U versus 2.4 GHz on the Xeon D-1813NT — a 45.2% clock advantage for the Core i5-8259U (base: 2.3 GHz vs 2.2 GHz). The Core i5-8259U is built on the Coffee Lake-U (2018−2019) architecture. In PassMark, the Core i5-8259U scores 7,843 against the Xeon D-1813NT's 7,732 — a 1.4% lead for the Core i5-8259U. L3 cache: 6 MB (total) on the Core i5-8259U vs 10240 kB on the Xeon D-1813NT.

Feature	Core i5-8259U	Xeon D-1813NT
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.8 GHz+58%	2.4 GHz
Base Clock	2.3 GHz+5%	2.2 GHz
L3 Cache	6 MB (total)	10240 kB+67%
L2 Cache	256K (per core)	—
Process	14 nm	—
Architecture	Coffee Lake-U (2018−2019)	—
PassMark	7,843+1%	7,732

🧠

Memory & Platform

The Core i5-8259U uses the FCBGA1528 socket (PCIe 3.0), while the Xeon D-1813NT uses FCBGA2227 (PCIe 4.0) — making them incompatible on the same motherboard.