Core i7-9700K vs Xeon E-2456

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 i7-9700K vs Xeon E-2456 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 i7-9700K vs Xeon E-2456: Pros, Cons & Final Verdict

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

Core i7-9700K

2018

Why buy it

✅Better for gaming: +4.7% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Xeon E-2456 needs a discrete GPU.

Trade-offs

❌Lower PassMark (14,397 vs 20,705).
❌Smaller total L3 cache (12 MB vs 18 MB).
❌Less compelling for workstation-style loads than Xeon E-2456, which brings 6 cores / 12 threads.
❌Launch MSRP is still $385 MSRP, while Xeon E-2456 mostly shows up through inconsistent older-market listings.
❌18.8% higher power demand at 95W vs 80W.

Xeon E-2456

2023

Why buy it

✅+43.8% higher PassMark.
✅+50% larger total L3 cache (18 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 6 cores / 12 threads.
✅Draws 80W instead of 95W, a 15W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA1151 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-9700K across 50 shared CPU benchmark tests.
❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon E-2456 better than Core i7-9700K?

Not really, because they are built for different jobs. Xeon E-2456 makes more sense for workstation-style multi-core throughput, while Core i7-9700K 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 E-2456 is the stronger fit. You are getting 43.8% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 50% larger total L3 cache (18 MB vs 12 MB).

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

Xeon E-2456 is still the much better call for a fresh build. Xeon E-2456 comes in at an unclear MSRP at unclear MSRP versus $385 MSRP, and it still gives you 43.8% better PassMark. Core i7-9700K only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2018 platform. Even with 100.0% better value on paper (37.4 vs 0.0 PassMark/$), 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 E-2456 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2018), a healthier platform with LGA1700 and DDR5 instead of LGA1151, 50% larger total L3 cache (18 MB vs 12 MB), and more multi-core headroom with 6 cores / 12 threads instead of 8/8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i7-9700K vs Xeon E-2456 Technical Specifications

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

Core i7-9700K

The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.

Xeon E-2456

The Xeon E-2456 is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 3.3 GHz, with boost up to 5.1 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 80 Watt. Memory support: DDR5-4800. Passmark benchmark score: 20,705 points. Launch price was $375.

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Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Xeon E-2456 offers 6 cores / 12 threads — the Core i7-9700K has 2 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 5.1 GHz on the Xeon E-2456 — a 4% clock advantage for the Xeon E-2456 (base: 3.6 GHz vs 3.3 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Xeon E-2456 uses Raptor Lake-S (2023−2024) (Intel 7 nm). In PassMark, the Core i7-9700K scores 14,397 against the Xeon E-2456's 20,705 — a 35.9% lead for the Xeon E-2456. L3 cache: 12 MB (total) on the Core i7-9700K vs 18 MB (total) on the Xeon E-2456.

Feature	Core i7-9700K	Xeon E-2456
Cores / Threads	8 / 8+33%	6 / 12
Boost Clock	4.9 GHz	5.1 GHz+4%
Base Clock	3.6 GHz+9%	3.3 GHz
L3 Cache	12 MB (total)	18 MB (total)+50%
L2 Cache	256K (per core)+20380%	1.25 MB (per core)
Process	14 nm	Intel 7 nm-50%
Architecture	Coffee Lake-R (2018−2019)	Raptor Lake-S (2023−2024)
PassMark	14,397	20,705+44%

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Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Xeon E-2456 uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i7-9700K	Xeon E-2456
Socket	LGA1151	LGA1700
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
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

Virtualization: VT-x, VT-d (Core i7-9700K) / not specified (Xeon E-2456). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Xeon E-2456 requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.