Core i9-9920X vs Ryzen 7 7800X3D

Core i9-9920X vs Ryzen 7 7800X3D Performance Spectrum

Core i9-9920X

12 / 24

24,974

0.0%

34,293

+37.3%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

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 i9-9920X vs Ryzen 7 7800X3D 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 i9-9920X vs Ryzen 7 7800X3D: Pros, Cons & Final Verdict

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

Core i9-9920X

2018

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 40 shared CPU benchmark tests.
❌Lower PassMark (24,974 vs 34,293).
❌Lower PassMark per dollar, at 21.0 vs 76.4 PassMark/$ ($1,189 MSRP vs $449 MSRP).
❌37.5% higher power demand at 165W vs 120W.
❌Older platform position on LGA2066 with DDR4, while Ryzen 7 7800X3D moves to AM5 and DDR5.

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +42.1% higher average FPS across 40 shared CPU benchmark tests.
✅Costs $740 less on MSRP ($449 MSRP vs $1,189 MSRP).
✅Delivers 263.6% more PassMark for each dollar spent, at 76.4 vs 21.0 PassMark/$ ($449 MSRP vs $1,189 MSRP).
✅Draws 120W instead of 165W, a 45W reduction.
✅Newer platform on AM5 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

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

Quick Answers

So, is Ryzen 7 7800X3D better than Core i9-9920X?

Yes. Ryzen 7 7800X3D is the better all-around CPU here. It gives you a 42.1% average FPS lead across 40 shared CPU game tests in our data, 37.3% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 7800X3D is the better pick. According to our tests, it delivers 42.1% more average FPS across 40 shared CPU game tests. It also has a clear cache advantage at 96 MB versus 19 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 7800X3D is the stronger fit. You are getting 37.3% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 398.7% larger total L3 cache (96 MB vs 19 MB).

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

Ryzen 7 7800X3D is the better buy right now. Ryzen 7 7800X3D comes in $740 cheaper on MSRP at $449 MSRP versus $1,189 MSRP, and it still gives you a 42.1% average FPS lead across 40 shared CPU game tests in our data. It is also 263.6% better value on MSRP (76.4 vs 21.0 PassMark/$), 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 7800X3D makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2018), a healthier platform with AM5 and DDR5 instead of LGA2066, 3D V-Cache and a much larger 96 MB L3 cache instead of 19 MB, and more multi-core headroom with 8 cores / 16 threads instead of 12/24. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-9920X vs Ryzen 7 7800X3D Technical Specifications

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

Core i9-9920X

The Core i9-9920X 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 12 cores and 24 threads. Base frequency is 3.5 GHz, with boost up to 4.5 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: DDR4-2666. Passmark benchmark score: 24,974 points. Launch price was $1,189.

Ryzen 7 7800X3D

The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.

⚡

Processing Power

The Core i9-9920X packs 12 cores / 24 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Core i9-9920X has 4 more cores. Boost clocks reach 4.5 GHz on the Core i9-9920X versus 5 GHz on the Ryzen 7 7800X3D — a 10.5% clock advantage for the Ryzen 7 7800X3D (base: 3.5 GHz vs 4.4 GHz). The Core i9-9920X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Core i9-9920X scores 24,974 against the Ryzen 7 7800X3D's 34,293 — a 31.4% lead for the Ryzen 7 7800X3D. L3 cache: 19.25 MB (total) on the Core i9-9920X vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	Core i9-9920X	Ryzen 7 7800X3D
Cores / Threads	12 / 24+50%	8 / 16
Boost Clock	4.5 GHz	5 GHz+11%
Base Clock	3.5 GHz	4.4 GHz+26%
L3 Cache	19.25 MB (total)	96 MB (total)+399%
L2 Cache	1 MB (per core)	1 MB (per core)
Process	14 nm	5 nm-64%
Architecture	Skylake (server) (2017−2018)	Raphael (Zen4) (2022−2023)
PassMark	24,974	34,293+37%
Cinebench R23 Multi	—	18,500
Geekbench 6 Single	—	2,700
Geekbench 6 Multi	—	15,000

🧠

Memory & Platform

The Core i9-9920X uses the LGA2066 socket (PCIe 3.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i9-9920X	Ryzen 7 7800X3D
Socket	LGA2066	AM5
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	—	DDR5-5200
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	28

🔧

Advanced Features

Virtualization: not specified (Core i9-9920X) / AMD-V (Ryzen 7 7800X3D). The Ryzen 7 7800X3D includes integrated graphics (AMD Radeon Graphics (2-core)), while the Core i9-9920X requires a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.

Feature	Core i9-9920X	Ryzen 7 7800X3D
Integrated GPU	—	Yes
IGPU Model	—	AMD Radeon Graphics (2-core)
Unlocked	—	Yes
AVX-512	—	Yes
Virtualization	—	AMD-V
Target Use	—	Gaming

💰

Value Analysis

At launch, the Core i9-9920X was priced at $1189, while the Ryzen 7 7800X3D came in at $449. On launch pricing ($1189 vs $449), Ryzen 7 7800X3D was $740 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-9920X delivers 21.0 pts/$ vs 76.4 pts/$ for the Ryzen 7 7800X3D — making the Ryzen 7 7800X3D the 113.7% better value option.

Feature	Core i9-9920X	Ryzen 7 7800X3D
MSRP	$1189	$449-62%
Performance per Dollar	21.0	76.4+264%
Release Date	2018	2023

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