Core i9-9820X vs Xeon Gold 5315Y

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 i9-9820X vs Xeon Gold 5315Y 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 i9-9820X vs Xeon Gold 5315Y: Pros, Cons & Final Verdict

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

Core i9-9820X

2018

Why buy it

✅+37.5% larger total L3 cache (17 MB vs 12 MB).
✅100+% more PCIe lanes (44 vs 0) for storage and expansion-heavy builds.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Lower PassMark (20,456 vs 20,477).
❌Launch MSRP is still $889 MSRP, while Xeon Gold 5315Y mostly shows up through inconsistent older-market listings.
❌17.9% higher power demand at 165W vs 140W.

Xeon Gold 5315Y

2021

Why buy it

✅+0.1% higher PassMark.
✅Draws 140W instead of 165W, a 25W reduction.

Trade-offs

❌Smaller total L3 cache (12 MB vs 17 MB).
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Quick Answers

So, is Xeon Gold 5315Y better than Core i9-9820X?

Not really, because they are built for different jobs. Xeon Gold 5315Y makes more sense for workstation-style multi-core throughput, while Core i9-9820X 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 Gold 5315Y is the stronger fit. You are getting 0.1% better PassMark, backed by 8 cores and 16 threads.

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

Xeon Gold 5315Y is still the much better call for a fresh build. Xeon Gold 5315Y comes in at an unclear MSRP at unclear MSRP versus $889 MSRP, and it still gives you 0.1% better PassMark. Core i9-9820X only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2018 platform. Even with 100.0% better value on paper (23.0 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA2066.

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

Xeon Gold 5315Y makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2018) and more multi-core headroom with 8 cores / 16 threads instead of 10/20. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i9-9820X vs Xeon Gold 5315Y Technical Specifications

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

Core i9-9820X

The Core i9-9820X is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 10 cores and 20 threads. Base frequency is 3.3 GHz, with boost up to 4.2 GHz. L3 cache: 16.5 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 20,456 points. Launch price was $898.

Xeon Gold 5315Y

The Xeon Gold 5315Y is manufactured by Intel. It was released in 2015-01-01. It is based on the Ice Lake-SP (2021) architecture. It features 8 cores and 16 threads. Base frequency is 3.2 GHz, with boost up to 3.6 GHz. L3 cache: 12 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2933. Passmark benchmark score: 20,477 points. Launch price was $800.

⚡

Processing Power

The Core i9-9820X packs 10 cores / 20 threads, while the Xeon Gold 5315Y offers 8 cores / 16 threads — the Core i9-9820X has 2 more cores. Boost clocks reach 4.2 GHz on the Core i9-9820X versus 3.6 GHz on the Xeon Gold 5315Y — a 15.4% clock advantage for the Core i9-9820X (base: 3.3 GHz vs 3.2 GHz). The Core i9-9820X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Xeon Gold 5315Y uses Ice Lake-SP (2021) (10 nm). In PassMark, the Core i9-9820X scores 20,456 against the Xeon Gold 5315Y's 20,477 — a 0.1% lead for the Xeon Gold 5315Y. L3 cache: 16.5 MB (total) on the Core i9-9820X vs 12 MB (total) on the Xeon Gold 5315Y.

Feature	Core i9-9820X	Xeon Gold 5315Y
Cores / Threads	10 / 20+25%	8 / 16
Boost Clock	4.2 GHz+17%	3.6 GHz
Base Clock	3.3 GHz+3%	3.2 GHz
L3 Cache	16.5 MB (total)+38%	12 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	14 nm	10 nm-29%
Architecture	Skylake (server) (2017−2018)	Ice Lake-SP (2021)
PassMark	20,456	20,477
Geekbench 6 Single	1,394	—
Geekbench 6 Multi	9,361	—

🧠

Memory & Platform

The Core i9-9820X uses the LGA2066 socket (PCIe 3.0), while the Xeon Gold 5315Y uses LGA4189 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i9-9820X	Xeon Gold 5315Y
Socket	LGA2066	LGA4189
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4 2666 MHz	—
Max RAM Capacity	128 GB	—
RAM Channels	4	—
ECC Support	No	—
PCIe Lanes	44	—