Xeon D-1587 vs Xeon E-2186G

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 E-2186G 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 E-2186G: 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

✅+0.1% higher PassMark.
✅Draws 65W instead of 95W, a 30W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E-2186G across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (1.5 MB vs 12 MB).
❌Launch MSRP is still $1,652 MSRP, while Xeon E-2186G mostly shows up through inconsistent older-market listings.

Xeon E-2186G

2018

Why buy it

✅Better for gaming: +10.9% higher average FPS across 50 shared CPU benchmark tests.
✅+700% larger total L3 cache (12 MB vs 1.5 MB).

Trade-offs

❌Lower PassMark (13,612 vs 13,630).
❌46.2% higher power demand at 95W vs 65W.

Quick Answers

So, is Xeon D-1587 better than Xeon E-2186G?

It depends on what you want from the system. For gaming, Xeon E-2186G is ahead with a 10.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon D-1587 pulls ahead with 0.1% better PassMark. Xeon E-2186G also has the bigger cache pool with 700% larger total L3 cache (12 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-1587 is the stronger fit. You are getting 0.1% better PassMark, backed by 16 cores and 32 threads.

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

Xeon D-1587 is the better buy right now. Xeon D-1587 comes in at an unclear MSRP at $1,652 MSRP versus unclear MSRP, and it still gives you 0.1% better PassMark. The compromise is that Xeon E-2186G is still the better pure gaming CPU with a 10.9% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (8.3 vs 0.0 PassMark/$), 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-2186G makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2016) and 700% larger total L3 cache (12 MB vs 1.5 MB). That makes it the safer long-term bet.

Xeon D-1587 vs Xeon E-2186G 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 E-2186G

The Xeon E-2186G is manufactured by Intel. It was released in 31 May 2018 (7 years ago). It is based on the Coffee Lake-S (2017−2018) architecture. It features 6 cores and 12 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4-2666. Passmark benchmark score: 13,612 points. Launch price was $506.

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Processing Power

The Xeon D-1587 packs 16 cores / 32 threads, while the Xeon E-2186G 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 4.7 GHz on the Xeon E-2186G — a 68.6% clock advantage for the Xeon E-2186G (base: 1.7 GHz vs 3.8 GHz). The Xeon D-1587 uses the Broadwell (2015−2019) architecture (14 nm), while the Xeon E-2186G uses Coffee Lake-S (2017−2018) (14 nm). In PassMark, the Xeon D-1587 scores 13,630 against the Xeon E-2186G's 13,612 — a 0.1% lead for the Xeon D-1587. L3 cache: 1.5 MB (per core) on the Xeon D-1587 vs 12 MB (total) on the Xeon E-2186G.

Feature	Xeon D-1587	Xeon E-2186G
Cores / Threads	16 / 32+167%	6 / 12
Boost Clock	2.3 GHz	4.7 GHz+104%
Base Clock	1.7 GHz	3.8 GHz+124%
L3 Cache	1.5 MB (per core)	12 MB (total)+700%
L2 Cache	256K (per core)	256 kB (per core)
Process	14 nm	14 nm
Architecture	Broadwell (2015−2019)	Coffee Lake-S (2017−2018)
PassMark	13,630	13,612

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Memory & Platform

The Xeon D-1587 uses the FCBGA1667 socket (PCIe 3.0), while the Xeon E-2186G uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.