Core i9-7920X vs Ryzen 7 3800XT

Core i9-7920X vs Ryzen 7 3800XT Performance Spectrum

Core i9-7920X

12 / 24

23,508

+0.3%

23,441

0.0%

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

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 i9-7920X vs Ryzen 7 3800XT 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 i9-7920X vs Ryzen 7 3800XT: Pros, Cons & Final Verdict

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

Core i9-7920X

2017

Why buy it

✅+0.3% higher PassMark.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 3800XT across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (17 MB vs 32 MB).
❌Lower PassMark per dollar, at 19.6 vs 58.7 PassMark/$ ($1,199 MSRP vs $399 MSRP).
❌33.3% higher power demand at 140W vs 105W.

Ryzen 7 3800XT

2020

Why buy it

✅Better for gaming: +35.6% higher average FPS across 50 shared CPU benchmark tests.
✅+93.9% larger total L3 cache (32 MB vs 17 MB).
✅Costs $800 less on MSRP ($399 MSRP vs $1,199 MSRP).
✅Delivers 199.6% more PassMark for each dollar spent, at 58.7 vs 19.6 PassMark/$ ($399 MSRP vs $1,199 MSRP).
✅Draws 105W instead of 140W, a 35W reduction.

Trade-offs

❌Lower PassMark (23,441 vs 23,508).

Quick Answers

So, is Ryzen 7 3800XT better than Core i9-7920X?

It depends on what you want from the system. For gaming, Ryzen 7 3800XT is ahead with a 35.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i9-7920X pulls ahead with 0.3% better PassMark. Ryzen 7 3800XT also has the bigger cache pool with 93.9% larger total L3 cache (32 MB vs 17 MB).

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

For streaming, content creation, and heavier multitasking, Core i9-7920X is the stronger fit. You are getting 0.3% better PassMark, backed by 12 cores and 24 threads.

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

Ryzen 7 3800XT is the better buy right now. Ryzen 7 3800XT comes in $800 cheaper on MSRP at $399 MSRP versus $1,199 MSRP, and it still gives you a 35.6% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Core i9-7920X is still stronger for heavier multi-core work with 0.3% better PassMark. It is also 199.6% better value on MSRP (58.7 vs 19.6 PassMark/$), 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 3800XT makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2017) and 93.9% larger total L3 cache (32 MB vs 17 MB). That makes it the safer long-term bet.

Core i9-7920X vs Ryzen 7 3800XT Technical Specifications

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

Core i9-7920X

The Core i9-7920X is manufactured by Intel. It was released in 10 September 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 12 cores and 24 threads. Base frequency is 2.9 GHz, with boost up to 4.4 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): 140 Watt. Memory support: DDR4-2666. Passmark benchmark score: 23,508 points. Launch price was $1,199.

Ryzen 7 3800XT

The Ryzen 7 3800XT is manufactured by AMD. It was released in 7 July 2020 (5 years ago). It is based on the Matisse (Zen 2) (2019−2020) 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: 23,441 points. Launch price was $399.

⚡

Processing Power

The Core i9-7920X packs 12 cores / 24 threads, while the Ryzen 7 3800XT offers 8 cores / 16 threads — the Core i9-7920X has 4 more cores. Boost clocks reach 4.4 GHz on the Core i9-7920X versus 4.7 GHz on the Ryzen 7 3800XT — a 6.6% clock advantage for the Ryzen 7 3800XT (base: 2.9 GHz vs 3.8 GHz). The Core i9-7920X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Ryzen 7 3800XT uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Core i9-7920X scores 23,508 against the Ryzen 7 3800XT's 23,441 — a 0.3% lead for the Core i9-7920X. L3 cache: 16.5 MB (total) on the Core i9-7920X vs 32 MB on the Ryzen 7 3800XT.

Feature	Core i9-7920X	Ryzen 7 3800XT
Cores / Threads	12 / 24+50%	8 / 16
Boost Clock	4.4 GHz	4.7 GHz+7%
Base Clock	2.9 GHz	3.8 GHz+31%
L3 Cache	16.5 MB (total)	32 MB+94%
L2 Cache	1 MB (per core)	512K (per core)+51100%
Process	14 nm	7 nm, 12 nm-50%
Architecture	Skylake (server) (2017−2018)	Matisse (Zen 2) (2019−2020)
PassMark	23,508	23,441

🧠

Memory & Platform

The Core i9-7920X uses the LGA2066 socket (PCIe 3.0), while the Ryzen 7 3800XT uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i9-7920X	Ryzen 7 3800XT
Socket	LGA2066	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	—	DDR4-3200
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	24

🔧

Advanced Features

Virtualization: not specified (Core i9-7920X) / AMD-V (Ryzen 7 3800XT). Primary use case: Ryzen 7 3800XT targets Desktop.

Feature	Core i9-7920X	Ryzen 7 3800XT
Integrated GPU	—	No
Unlocked	—	Yes
AVX-512	—	No
Virtualization	—	AMD-V
Target Use	—	Desktop

💰

Value Analysis

At launch, the Core i9-7920X was priced at $1199, while the Ryzen 7 3800XT came in at $399. On launch pricing ($1199 vs $399), Ryzen 7 3800XT was $800 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-7920X delivers 19.6 pts/$ vs 58.7 pts/$ for the Ryzen 7 3800XT — making the Ryzen 7 3800XT the 99.9% better value option.

Feature	Core i9-7920X	Ryzen 7 3800XT
MSRP	$1199	$399-67%
Performance per Dollar	19.6	58.7+199%
Release Date	2017	2020

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