Core i7-9700K vs Ryzen 9 PRO 3900

CPU

GPU

Core i7-9700K

8 Cores8 Thrd95 WWMax: 4.9 GHz2018

Similar parts

·······

Buy on Amazon

Ryzen 9 PRO 3900

12 Cores24 Thrd65 WWMax: 4.3 GHz2019

Similar parts

·······

Buy on Amazon

Core i7-9700K vs Ryzen 9 PRO 3900 Performance Spectrum

Core i7-9700K

8 / 8

14,397

0.0%

31,251

+117.1%

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 7975WX

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 i7-9700K vs Ryzen 9 PRO 3900 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 i7-9700K vs Ryzen 9 PRO 3900: Pros, Cons & Final Verdict

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

Core i7-9700K

2018

Why buy it

✅Costs $114 less on MSRP ($385 MSRP vs $499 MSRP).
✅Integrated graphics onboard with UHD Graphics 630, while Ryzen 9 PRO 3900 needs a discrete GPU.

Trade-offs

❌Lower PassMark (14,397 vs 31,251).
❌Smaller total L3 cache (12 MB vs 64 MB).
❌Lower PassMark per dollar, at 37.4 vs 62.6 PassMark/$ ($385 MSRP vs $499 MSRP).
❌46.2% higher power demand at 95W vs 65W.
❌No boxed cooler included, unlike Ryzen 9 PRO 3900.

Ryzen 9 PRO 3900

2019

Why buy it

✅+117.1% higher PassMark.
✅+433.3% larger total L3 cache (64 MB vs 12 MB).
✅Delivers 67.5% more PassMark for each dollar spent, at 62.6 vs 37.4 PassMark/$ ($499 MSRP vs $385 MSRP).
✅Draws 65W instead of 95W, a 30W reduction.
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌
29.6% HIGHER MSRP
$499 MSRPvs$385 MSRP
❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 PRO 3900 better than Core i7-9700K?

It depends on what you want from the system. For gaming, Core i7-9700K is ahead with a 2.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 9 PRO 3900 pulls ahead with 117.1% better PassMark. Ryzen 9 PRO 3900 also has the bigger cache pool with 433.3% larger total L3 cache (64 MB vs 12 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 9 PRO 3900 is the stronger fit. You are getting 117.1% better PassMark, backed by 12 cores and 24 threads. It also has the larger cache pool with 433.3% larger total L3 cache (64 MB vs 12 MB).

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

Ryzen 9 PRO 3900 is the better buy right now. Ryzen 9 PRO 3900 comes in 29.6% more expensive on MSRP at $499 MSRP versus $385 MSRP, and it still gives you 117.1% better PassMark. The compromise is that Core i7-9700K is still the better pure gaming CPU with a 2.9% average FPS lead across 50 shared CPU game tests in our data. It is also 67.5% better value on MSRP (62.6 vs 37.4 PassMark/$), 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 9 PRO 3900 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2018), 433.3% larger total L3 cache (64 MB vs 12 MB), and more multi-core headroom with 12 cores / 24 threads instead of 8/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-9700K vs Ryzen 9 PRO 3900 Technical Specifications

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

Core i7-9700K

The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.

Ryzen 9 PRO 3900

The Ryzen 9 PRO 3900 is manufactured by AMD. It was released in 30 September 2019 (6 years ago). It is based on the Zen 2 (2017−2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.1 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 6 MB. Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 31,251 points. Launch price was $499.

⚡

Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Ryzen 9 PRO 3900 offers 12 cores / 24 threads — the Ryzen 9 PRO 3900 has 4 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 4.3 GHz on the Ryzen 9 PRO 3900 — a 13% clock advantage for the Core i7-9700K (base: 3.6 GHz vs 3.1 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Ryzen 9 PRO 3900 uses Zen 2 (2017−2020) (7 nm, 12 nm). In PassMark, the Core i7-9700K scores 14,397 against the Ryzen 9 PRO 3900's 31,251 — a 73.8% lead for the Ryzen 9 PRO 3900. L3 cache: 12 MB (total) on the Core i7-9700K vs 64 MB on the Ryzen 9 PRO 3900.

Feature	Core i7-9700K	Ryzen 9 PRO 3900
Cores / Threads	8 / 8	12 / 24+50%
Boost Clock	4.9 GHz+14%	4.3 GHz
Base Clock	3.6 GHz+16%	3.1 GHz
L3 Cache	12 MB (total)	64 MB+433%
L2 Cache	256K (per core)+4167%	6 MB
Process	14 nm	7 nm, 12 nm-50%
Architecture	Coffee Lake-R (2018−2019)	Zen 2 (2017−2020)
PassMark	14,397	31,251+117%
Cinebench R23 Multi	—	17,500
Geekbench 6 Single	—	1,688
Geekbench 6 Multi	—	10,000

🧠

Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Ryzen 9 PRO 3900 uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i7-9700K versus DDR4-3200 on the Ryzen 9 PRO 3900 — the Ryzen 9 PRO 3900 supports 20% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-9700K) vs 24 (Ryzen 9 PRO 3900) — the Ryzen 9 PRO 3900 offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 300 series (Core i7-9700K) and X570,B550,X470,B450 (Ryzen 9 PRO 3900).

Feature	Core i7-9700K	Ryzen 9 PRO 3900
Socket	LGA1151	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2666	DDR4-3200+20%
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	24+50%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Virtualization support: VT-x, VT-d (Core i7-9700K) vs AMD-V (Ryzen 9 PRO 3900). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Ryzen 9 PRO 3900 requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop, Ryzen 9 PRO 3900 targets Professional Content Creation. Direct competitor: Ryzen 9 PRO 3900 rivals Core i9-10900.

Feature	Core i7-9700K	Ryzen 9 PRO 3900
Integrated GPU	Yes	No
IGPU Model	UHD Graphics 630	—
Unlocked	Yes	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	AMD-V
Target Use	Desktop	Professional Content Creation

💰

Value Analysis

At launch, the Core i7-9700K was priced at $385, while the Ryzen 9 PRO 3900 came in at $499. On launch pricing ($385 vs $499), Core i7-9700K was $114 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-9700K delivers 37.4 pts/$ vs 62.6 pts/$ for the Ryzen 9 PRO 3900 — making the Ryzen 9 PRO 3900 the 50.5% better value option.

Feature	Core i7-9700K	Ryzen 9 PRO 3900
MSRP	$385-23%	$499
Performance per Dollar	37.4	62.6+67%
Release Date	2018	2019

Search Core i7-9700K on Amazon

Search Ryzen 9 PRO 3900 on Amazon

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.