Core i9-7900X vs Ryzen 5 7640U

Core i9-7900X vs Ryzen 5 7640U Performance Spectrum

Core i9-7900X

10 / 20

20,907

+0.2%

20,856

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 i9-7900X vs Ryzen 5 7640U 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 i9-7900X vs Ryzen 5 7640U: Pros, Cons & Final Verdict

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

Core i9-7900X

2017

Why buy it

✅+0.2% higher PassMark.
✅100+% more PCIe lanes (44 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 7640U across 50 shared CPU benchmark tests.
❌Launch MSRP is still $999 MSRP, while Ryzen 5 7640U mostly shows up through inconsistent older-market listings.
❌833.3% higher power demand at 140W vs 15W.
❌Older platform position on LGA2011 with DDR4, while Ryzen 5 7640U moves to FP8 and DDR5.

Ryzen 5 7640U

2023

Why buy it

✅Better for gaming: +8.4% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 15W instead of 140W, a 125W reduction.
✅Newer platform on FP8 with DDR5 support instead of LGA2011 and DDR4.

Trade-offs

❌Lower PassMark (20,856 vs 20,907).

Quick Answers

So, is Ryzen 5 7640U better than Core i9-7900X?

It depends on what you want from the system. For gaming, Ryzen 5 7640U is ahead with a 8.4% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i9-7900X pulls ahead with 0.2% better PassMark.

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

For streaming, content creation, and heavier multitasking, Core i9-7900X is the stronger fit. You are getting 0.2% better PassMark, backed by 10 cores and 20 threads.

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

Ryzen 5 7640U is still the much better call for a fresh build. Ryzen 5 7640U comes in at an unclear MSRP at unclear MSRP versus $999 MSRP, and it still gives you a 8.4% average FPS lead across 50 shared CPU game tests in our data. Core i9-7900X only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2017 platform. Even with 100.0% better value on paper (20.9 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA2011.

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

Ryzen 5 7640U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2017) and a healthier platform with FP8 and DDR5 instead of LGA2011. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-7900X vs Ryzen 5 7640U Technical Specifications

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

Core i9-7900X

The Core i9-7900X is manufactured by Intel. It was released in 26 June 2017 (8 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 4.5 GHz. L3 cache: 14 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 140 Watt. Memory support: DDR4. Passmark benchmark score: 20,907 points. Launch price was $999.

Ryzen 5 7640U

The Ryzen 5 7640U is manufactured by AMD. It was released in 3 May 2023 (2 years ago). It is based on the Phoenix-U (Zen 4) (2023) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 15 Watt. Memory support: DDR5. Passmark benchmark score: 20,856 points. Launch price was $299.

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Processing Power

The Core i9-7900X packs 10 cores / 20 threads, while the Ryzen 5 7640U offers 6 cores / 12 threads — the Core i9-7900X has 4 more cores. Boost clocks reach 4.5 GHz on the Core i9-7900X versus 4.9 GHz on the Ryzen 5 7640U — a 8.5% clock advantage for the Ryzen 5 7640U (base: 3.3 GHz vs 3.5 GHz). The Core i9-7900X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Ryzen 5 7640U uses Phoenix-U (Zen 4) (2023) (4 nm). In PassMark, the Core i9-7900X scores 20,907 against the Ryzen 5 7640U's 20,856 — a 0.2% lead for the Core i9-7900X. L3 cache: 14 MB (total) on the Core i9-7900X vs 16 MB (total) on the Ryzen 5 7640U.

Feature	Core i9-7900X	Ryzen 5 7640U
Cores / Threads	10 / 20+67%	6 / 12
Boost Clock	4.5 GHz	4.9 GHz+9%
Base Clock	3.3 GHz	3.5 GHz+6%
L3 Cache	14 MB (total)	16 MB (total)+14%
L2 Cache	1 MB (per core)	1 MB (per core)
Process	14 nm	4 nm-71%
Architecture	Skylake (server) (2017−2018)	Phoenix-U (Zen 4) (2023)
PassMark	20,907	20,856
Geekbench 6 Single	1,323	—
Geekbench 6 Multi	8,536	—

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Memory & Platform

The Core i9-7900X uses the LGA2011 socket (PCIe 3.0), while the Ryzen 5 7640U uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.