Core i7-8700K vs Xeon D-1587

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 i7-8700K vs Xeon D-1587 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 i7-8700K vs Xeon D-1587: Pros, Cons & Final Verdict

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

Core i7-8700K

2017

Why buy it

✅Better for gaming: +20.1% higher average FPS across 50 shared CPU benchmark tests.
✅+700% larger total L3 cache (12 MB vs 1.5 MB).
✅Costs $1,293 less on MSRP ($359 MSRP vs $1,652 MSRP).
✅Delivers 358.2% more PassMark for each dollar spent, at 37.8 vs 8.3 PassMark/$ ($359 MSRP vs $1,652 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (13,572 vs 13,630).
❌Less compelling for workstation-style loads than Xeon D-1587, which brings 16 cores / 32 threads.
❌46.2% higher power demand at 95W vs 65W.

Xeon D-1587

2016

Why buy it

✅+0.4% higher PassMark.
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads.
✅Draws 65W instead of 95W, a 30W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-8700K across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (1.5 MB vs 12 MB).
❌Lower PassMark per dollar, at 8.3 vs 37.8 PassMark/$ ($1,652 MSRP vs $359 MSRP).
❌No integrated graphics, while Core i7-8700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i7-8700K better than Xeon D-1587?

Not really, because they are built for different jobs. Xeon D-1587 makes more sense for workstation-style multi-core throughput, while Core i7-8700K 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, Xeon D-1587 is the stronger fit. You are getting 0.4% better PassMark, backed by 16 cores and 32 threads.

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

Core i7-8700K is the better buy right now. Core i7-8700K comes in $1,293 cheaper on MSRP at $359 MSRP versus $1,652 MSRP, and it still gives you a 20.1% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon D-1587 is still stronger for heavier multi-core work with 0.4% better PassMark. It is also 358.2% better value on MSRP (37.8 vs 8.3 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i7-8700K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2016) and 700% larger total L3 cache (12 MB vs 1.5 MB). That makes it the safer long-term bet.

Core i7-8700K vs Xeon D-1587 Technical Specifications

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

Core i7-8700K

The Core i7-8700K is manufactured by Intel. It was released in 5 October 2017 (8 years ago). It is based on the Coffee Lake-S (2017−2018) architecture. It features 6 cores and 12 threads. Base frequency is 3.7 GHz, with boost up to 4.7 GHz. L3 cache: 12288 kB. L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 13,572 points. Launch price was $359.

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.

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Processing Power

The Core i7-8700K packs 6 cores / 12 threads, while the Xeon D-1587 offers 16 cores / 32 threads — the Xeon D-1587 has 10 more cores. Boost clocks reach 4.7 GHz on the Core i7-8700K versus 2.3 GHz on the Xeon D-1587 — a 68.6% clock advantage for the Core i7-8700K (base: 3.7 GHz vs 1.7 GHz). The Core i7-8700K uses the Coffee Lake-S (2017−2018) architecture (14 nm), while the Xeon D-1587 uses Broadwell (2015−2019) (14 nm). In PassMark, the Core i7-8700K scores 13,572 against the Xeon D-1587's 13,630 — a 0.4% lead for the Xeon D-1587. L3 cache: 12288 kB on the Core i7-8700K vs 1.5 MB (per core) on the Xeon D-1587.

Feature	Core i7-8700K	Xeon D-1587
Cores / Threads	6 / 12	16 / 32+167%
Boost Clock	4.7 GHz+104%	2.3 GHz
Base Clock	3.7 GHz+118%	1.7 GHz
L3 Cache	12288 kB+700%	1.5 MB (per core)
L2 Cache	256K (per core)	256K (per core)
Process	14 nm	14 nm
Architecture	Coffee Lake-S (2017−2018)	Broadwell (2015−2019)
PassMark	13,572	13,630

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Memory & Platform

The Core i7-8700K uses the LGA1151 socket (PCIe 3.0), while the Xeon D-1587 uses FCBGA1667 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-8700K	Xeon D-1587
Socket	LGA1151	FCBGA1667
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

The Core i7-8700K includes integrated graphics (Intel UHD Graphics 630), while the Xeon D-1587 requires a dedicated GPU.

Feature	Core i7-8700K	Xeon D-1587
Integrated GPU	Yes	—
IGPU Model	Intel UHD Graphics 630	—

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Value Analysis

At launch, the Core i7-8700K was priced at $359, while the Xeon D-1587 came in at $1652. On launch pricing ($359 vs $1652), Core i7-8700K was $1293 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-8700K delivers 37.8 pts/$ vs 8.3 pts/$ for the Xeon D-1587 — making the Core i7-8700K the 128.3% better value option.

Feature	Core i7-8700K	Xeon D-1587
MSRP	$359-78%	$1652
Performance per Dollar	37.8+355%	8.3
Release Date	2017	2016

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