Core i9-10920X vs Ryzen 7 5800X

CPU

GPU

Core i9-10920X

12 Cores24 Thrd165 WWMax: 4.8 GHz2019

Core family

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Ryzen 7 5800X

8 Cores16 Thrd105 WWMax: 4.7 GHz2020

Ryzen family

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Core i9-10920X vs Ryzen 7 5800X Performance Spectrum

Core i9-10920X

12 / 24

25,875

0.0%

27,712

+7.1%

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 9965WX

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 i9-10920X vs Ryzen 7 5800X 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 i9-10920X vs Ryzen 7 5800X: Pros, Cons & Final Verdict

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

Core i9-10920X

2019

Why buy it

✅83.3% more PCIe lanes (44 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (25,875 vs 27,712).
❌Smaller total L3 cache (19 MB vs 32 MB).
❌Lower PassMark per dollar, at 37.6 vs 61.7 PassMark/$ ($689 MSRP vs $449 MSRP).
❌57.1% higher power demand at 165W vs 105W.

Ryzen 7 5800X

2020

Why buy it

✅+7.1% higher PassMark.
✅+66.2% larger total L3 cache (32 MB vs 19 MB).
✅Costs $240 less on MSRP ($449 MSRP vs $689 MSRP).
✅Delivers 64.3% more PassMark for each dollar spent, at 61.7 vs 37.6 PassMark/$ ($449 MSRP vs $689 MSRP).
✅Draws 105W instead of 165W, a 60W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Ryzen 7 5800X better than Core i9-10920X?

It depends on what you want from the system. For gaming, Core i9-10920X is ahead with a 0.7% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 7 5800X pulls ahead with 7.1% better PassMark. Ryzen 7 5800X also has the bigger cache pool with 66.2% larger total L3 cache (32 MB vs 19 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Ryzen 7 5800X is the stronger fit. You are getting 7.1% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 66.2% larger total L3 cache (32 MB vs 19 MB).

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

Ryzen 7 5800X is the better buy right now. Ryzen 7 5800X comes in $240 cheaper on MSRP at $449 MSRP versus $689 MSRP, and it still gives you 7.1% better PassMark. The compromise is that Core i9-10920X is still the better pure gaming CPU with a 0.7% average FPS lead across 50 shared CPU game tests in our data. It is also 64.3% better value on MSRP (61.7 vs 37.6 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 7 5800X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2019), 66.2% larger total L3 cache (32 MB vs 19 MB), and more multi-core headroom with 8 cores / 16 threads instead of 12/24. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i9-10920X vs Ryzen 7 5800X Technical Specifications

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

Core i9-10920X

The Core i9-10920X is manufactured by Intel. It was released in 19 October 2019 (6 years ago). It is based on the Cascade Lake-X (2019) architecture. It features 12 cores and 24 threads. Base frequency is 3.5 GHz, with boost up to 4.8 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2933. Passmark benchmark score: 25,875 points. Launch price was $299.

Ryzen 7 5800X

The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.

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Processing Power

The Core i9-10920X packs 12 cores / 24 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Core i9-10920X has 4 more cores. Boost clocks reach 4.8 GHz on the Core i9-10920X versus 4.7 GHz on the Ryzen 7 5800X — a 2.1% clock advantage for the Core i9-10920X (base: 3.5 GHz vs 3.8 GHz). The Core i9-10920X uses the Cascade Lake-X (2019) architecture (14 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core i9-10920X scores 25,875 against the Ryzen 7 5800X's 27,712 — a 6.9% lead for the Ryzen 7 5800X. L3 cache: 19.25 MB (total) on the Core i9-10920X vs 32 MB on the Ryzen 7 5800X.

Feature	Core i9-10920X	Ryzen 7 5800X
Cores / Threads	12 / 24+50%	8 / 16
Boost Clock	4.8 GHz+2%	4.7 GHz
Base Clock	3.5 GHz	3.8 GHz+9%
L3 Cache	19.25 MB (total)	32 MB+66%
L2 Cache	1 MB (per core)	512K (per core)+51100%
Process	14 nm	7 nm, 12 nm-50%
Architecture	Cascade Lake-X (2019)	Vermeer (Zen 3) (2020−2022)
PassMark	25,875	27,712+7%
Cinebench R23 Multi	15,458	—
Geekbench 6 Single	1,250	—
Geekbench 6 Multi	12,000	—

🧠

Memory & Platform

The Core i9-10920X uses the LGA2066 socket (PCIe 3.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2933 on the Core i9-10920X versus DDR4-3200 on the Ryzen 7 5800X — the Ryzen 7 5800X supports 9.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i9-10920X supports up to 256 GB of RAM compared to 128 GB — 100% more capacity for professional workloads. Memory channels: 4 (Core i9-10920X) vs 2 (Ryzen 7 5800X). PCIe lanes: 44 (Core i9-10920X) vs 24 (Ryzen 7 5800X) — the Core i9-10920X offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X299 (Core i9-10920X) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X).

Feature	Core i9-10920X	Ryzen 7 5800X
Socket	LGA2066	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2933	DDR4-3200+9%
Max RAM Capacity	256 GB+100%	128 GB
RAM Channels	4+100%	2
ECC Support	No	Yes
PCIe Lanes	44+83%	24

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Core i9-10920X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, EPT (Core i9-10920X) vs AMD-V (Ryzen 7 5800X). Primary use case: Core i9-10920X targets HEDT/Workstation, Ryzen 7 5800X targets Desktop.

Feature	Core i9-10920X	Ryzen 7 5800X
Integrated GPU	No	No
Unlocked	Yes	Yes
AVX-512	Yes	No
Virtualization	VT-x, VT-d, EPT	AMD-V
Target Use	HEDT/Workstation	Desktop

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Value Analysis

At launch, the Core i9-10920X was priced at $689, while the Ryzen 7 5800X came in at $449. On launch pricing ($689 vs $449), Ryzen 7 5800X was $240 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-10920X delivers 37.6 pts/$ vs 61.7 pts/$ for the Ryzen 7 5800X — making the Ryzen 7 5800X the 48.7% better value option.

Feature	Core i9-10920X	Ryzen 7 5800X
MSRP	$689	$449-35%
Performance per Dollar	37.6	61.7+64%
Release Date	2019	2020

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