Xeon D-1587 vs Xeon D-1823NT

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 D-1587 vs Xeon D-1823NT 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 D-1587 vs Xeon D-1823NT: Pros, Cons & Final Verdict

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

Xeon D-1587

2016

Why buy it

✅Better for gaming: +14.5% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (13,630 vs 13,673).
❌Smaller total L3 cache (1.5 MB vs 10 MB).
❌Launch MSRP is still $1,652 MSRP, while Xeon D-1823NT mostly shows up through inconsistent older-market listings.
❌18.2% higher power demand at 65W vs 55W.

Xeon D-1823NT

2023

Why buy it

✅+0.3% higher PassMark.
✅+566.7% larger total L3 cache (10 MB vs 1.5 MB).
✅Draws 55W instead of 65W, a 10W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon D-1587 across 50 shared CPU benchmark tests.

Quick Answers

So, is Xeon D-1823NT better than Xeon D-1587?

It depends on what you want from the system. For gaming, Xeon D-1587 is ahead with a 14.5% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon D-1823NT pulls ahead with 0.3% better PassMark. Xeon D-1823NT also has the bigger cache pool with 566.7% larger total L3 cache (10 MB vs 1.5 MB).

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

For streaming, content creation, and heavier multitasking, Xeon D-1823NT is the stronger fit. You are getting 0.3% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 566.7% larger total L3 cache (10 MB vs 1.5 MB).

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

Xeon D-1823NT is the easy recommendation for a fresh desktop build. Xeon D-1823NT comes in at an unclear MSRP at unclear MSRP versus $1,652 MSRP, and it still gives you 0.3% better PassMark. Xeon D-1587 only looks good on raw value math because it is a cheap legacy laptop chip, not because it is a real desktop gaming recommendation. It simply does not keep up in modern games.

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

Xeon D-1823NT makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2016), 566.7% larger total L3 cache (10 MB vs 1.5 MB), and more multi-core headroom with 6 cores / 12 threads instead of 16/32. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Xeon D-1587 vs Xeon D-1823NT Technical Specifications

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

Xeon D-1587

The Xeon D-1587 is manufactured by Intel. It was released in 24 February 2016 (9 years ago). It is based on the Broadwell (2015−2019) architecture. It features 16 cores and 32 threads. Base frequency is 1.7 GHz, with boost up to 2.3 GHz. L3 cache: 1.5 MB (per core). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1667. Thermal design power (TDP): 65 Watt. Memory support: DDR4, DDR3. Passmark benchmark score: 13,630 points. Launch price was $1,443.

Xeon D-1823NT

The Xeon D-1823NT is manufactured by Intel. It was released in 2015-01-01. It features 6 cores and 12 threads. Base frequency is 2.8 GHz, with boost up to 3.5 GHz. L3 cache: 10240 kB. Socket: FCBGA2227. Thermal design power (TDP): 55 Watt. Memory support: DDR4. Passmark benchmark score: 13,673 points. Launch price was $800.

⚡

Processing Power

The Xeon D-1587 packs 16 cores / 32 threads, while the Xeon D-1823NT offers 6 cores / 12 threads — the Xeon D-1587 has 10 more cores. Boost clocks reach 2.3 GHz on the Xeon D-1587 versus 3.5 GHz on the Xeon D-1823NT — a 41.4% clock advantage for the Xeon D-1823NT (base: 1.7 GHz vs 2.8 GHz). The Xeon D-1587 is built on the Broadwell (2015−2019) architecture. In PassMark, the Xeon D-1587 scores 13,630 against the Xeon D-1823NT's 13,673 — a 0.3% lead for the Xeon D-1823NT. L3 cache: 1.5 MB (per core) on the Xeon D-1587 vs 10240 kB on the Xeon D-1823NT.

Feature	Xeon D-1587	Xeon D-1823NT
Cores / Threads	16 / 32+167%	6 / 12
Boost Clock	2.3 GHz	3.5 GHz+52%
Base Clock	1.7 GHz	2.8 GHz+65%
L3 Cache	1.5 MB (per core)	10240 kB+567%
L2 Cache	256K (per core)	—
Process	14 nm	—
Architecture	Broadwell (2015−2019)	—
PassMark	13,630	13,673

🧠

Memory & Platform

The Xeon D-1587 uses the FCBGA1667 socket (PCIe 3.0), while the Xeon D-1823NT uses FCBGA2227 (PCIe 4.0) — making them incompatible on the same motherboard.