Core i7-8700K vs Xeon Silver 4215

Intel

Core i7-8700K

6 Cores12 Thrd95 WWMax: 4.7 GHz2017
VS
Intel

Xeon Silver 4215

8 Cores16 Thrd85 WWMax: 3.5 GHz2019

Core i7-8700K vs Xeon Silver 4215 Performance Spectrum

About PassMark

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 Silver 4215 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 Silver 4215: 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

  • βœ…Better for gaming: +17.8% higher average FPS across 50 shared CPU benchmark tests.
  • βœ…100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
  • βœ…Integrated graphics onboard with Intel UHD Graphics 630, while Xeon Silver 4215 needs a discrete GPU.

Trade-offs

  • ❌Lower PassMark (13,572 vs 13,728).
  • ❌Less compelling for workstation-style loads than Xeon Silver 4215, which brings 8 cores / 16 threads.
  • ❌Launch MSRP is still $359 MSRP, while Xeon Silver 4215 mostly shows up through inconsistent older-market listings.

Xeon Silver 4215

2019

Why buy it

  • βœ…+1.1% higher PassMark.
  • βœ…Better for workstations and heavier parallel workloads: 8 cores / 16 threads.
  • βœ…Draws 85W instead of 95W, a 10W reduction.

Trade-offs

  • ❌Worse for gaming: lower average FPS than Core i7-8700K across 50 shared CPU benchmark tests.
  • ❌No integrated graphics, while Core i7-8700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon Silver 4215 better than Core i7-8700K?
Not really, because they are built for different jobs. Xeon Silver 4215 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 Silver 4215 is the stronger fit. You are getting 1.1% better PassMark, backed by 8 cores and 16 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Xeon Silver 4215 is still the much better call for a fresh build. Xeon Silver 4215 comes in at an unclear MSRP at unclear MSRP versus $359 MSRP, and it still gives you 1.1% better PassMark. Core i7-8700K only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2017 platform. Even with 100.0% better value on paper (37.8 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1151.
Which one is more future-proof for 2026 and beyond?
Xeon Silver 4215 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2017) and more multi-core headroom with 8 cores / 16 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-8700K vs Xeon Silver 4215 Technical Specifications

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

Intel

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 (2017βˆ’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.

Intel

Xeon Silver 4215

The Xeon Silver 4215 is manufactured by Intel. It was released in 2 April 2019 (6 years ago). It is based on the Cascade Lake (2019βˆ’2020) architecture. It features 8 cores and 16 threads. Base frequency is 2.5 GHz, with boost up to 3.5 GHz. L3 cache: 11 MB. L2 cache: 8 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 85 Watt. Memory support: DDR4-2400. Passmark benchmark score: 13,728 points. Launch price was $794.

⚑

Processing Power

The Core i7-8700K packs 6 cores / 12 threads, while the Xeon Silver 4215 offers 8 cores / 16 threads β€” the Xeon Silver 4215 has 2 more cores. Boost clocks reach 4.7 GHz on the Core i7-8700K versus 3.5 GHz on the Xeon Silver 4215 β€” a 29.3% clock advantage for the Core i7-8700K (base: 3.7 GHz vs 2.5 GHz). The Core i7-8700K uses the Coffee Lake-S (2017βˆ’2018) architecture (14 nm), while the Xeon Silver 4215 uses Cascade Lake (2019βˆ’2020) (14 nm). In PassMark, the Core i7-8700K scores 13,572 against the Xeon Silver 4215's 13,728 β€” a 1.1% lead for the Xeon Silver 4215. L3 cache: 12288 kB on the Core i7-8700K vs 11 MB on the Xeon Silver 4215.

FeatureCore i7-8700KXeon Silver 4215
Cores / Threads
6 / 12
8 / 16+33%
Boost Clock
4.7 GHz+34%
3.5 GHz
Base Clock
3.7 GHz+48%
2.5 GHz
L3 Cache
12288 kB+9%
11 MB
L2 Cache
256K (per core)+3100%
8 MB
Process
14 nm
14 nm
Architecture
Coffee Lake-S (2017βˆ’2018)
Cascade Lake (2019βˆ’2020)
PassMark
13,572
13,728+1%
🧠

Memory & Platform

The Core i7-8700K uses the LGA1151 socket (PCIe 3.0), while the Xeon Silver 4215 uses LGA3647 (PCIe 3.0) β€” making them incompatible on the same motherboard.

FeatureCore i7-8700KXeon Silver 4215
Socket
LGA1151
LGA3647
PCIe Generation
PCIe 3.0
PCIe 3.0
Max RAM Speed
DDR4-2666
β€”
Max RAM Capacity
128 GB
β€”
RAM Channels
2
β€”
ECC Support
No
β€”
PCIe Lanes
16
β€”
πŸ”§

Advanced Features

The Core i7-8700K includes integrated graphics (Intel UHD Graphics 630), while the Xeon Silver 4215 requires a dedicated GPU.

FeatureCore i7-8700KXeon Silver 4215
Integrated GPU
Yes
β€”
IGPU Model
Intel UHD Graphics 630
β€”