Ryzen 7 8700G vs Ryzen 9 PRO 3900

CPU

GPU

Ryzen 7 8700G

8 Cores16 Thrd65 WWMax: 5.1 GHz2024

Ryzen family

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Ryzen 9 PRO 3900

12 Cores24 Thrd65 WWMax: 4.3 GHz2019

Similar parts

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Ryzen 7 8700G vs Ryzen 9 PRO 3900 Performance Spectrum

Ryzen 7 8700G

8 / 16

31,649

+1.3%

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 7975WX

Ryzen 9 PRO 3900

12 / 24

31,251

0.0%

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.

Ryzen 7 8700G 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.

Ryzen 7 8700G 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.

Ryzen 7 8700G

2024

Why buy it

✅Better for gaming: +17.4% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $170 less on MSRP ($329 MSRP vs $499 MSRP).
✅Delivers 53.6% more PassMark for each dollar spent, at 96.2 vs 62.6 PassMark/$ ($329 MSRP vs $499 MSRP).
✅Newer platform on AM5 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 780M, while Ryzen 9 PRO 3900 needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (16 MB vs 64 MB).

Ryzen 9 PRO 3900

2019

Why buy it

✅+300% larger total L3 cache (64 MB vs 16 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 8700G across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (17,500 vs 18,000).
❌Lower PassMark per dollar, at 62.6 vs 96.2 PassMark/$ ($499 MSRP vs $329 MSRP).
❌Older platform position on AM4 with DDR4, while Ryzen 7 8700G moves to AM5 and DDR5.
❌No integrated graphics, while Ryzen 7 8700G can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 7 8700G better than Ryzen 9 PRO 3900?

Yes. Ryzen 7 8700G is the better all-around CPU here. It gives you a 17.4% average FPS lead across 50 shared CPU game tests in our data, 2.9% better Cinebench R23 multi-core, 1.3% higher 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 8700G is the better pick. According to our tests, it delivers 17.4% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 8700G is the stronger fit. You are getting 2.9% better Cinebench R23 multi-core, backed by 8 cores and 16 threads.

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

Ryzen 7 8700G is the better buy right now. Ryzen 7 8700G comes in $170 cheaper on MSRP at $329 MSRP versus $499 MSRP, and it still gives you a 17.4% average FPS lead across 50 shared CPU game tests in our data. It is also 53.6% better value on MSRP (96.2 vs 62.6 PassMark/$), so you are getting the faster CPU without taking a value hit on paper. That said, if you already own a compatible AM4 + DDR4 setup, Ryzen 9 PRO 3900 can still make sense as a platform-matched option because it avoids a motherboard and RAM swap, but on MSRP alone you would want to find it meaningfully cheaper in real-world listings before that path becomes easy to justify.

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

Ryzen 7 8700G makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2019), a healthier platform with AM5 and DDR5 instead of AM4, 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.

Ryzen 7 8700G vs Ryzen 9 PRO 3900 Technical Specifications

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

Ryzen 7 8700G

The Ryzen 7 8700G is manufactured by AMD. It was released in 8 January 2024 (1 year ago). It is based on the Phoenix (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 4.2 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 31,649 points. Launch price was $329.

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.

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Processing Power

The Ryzen 7 8700G packs 8 cores / 16 threads, while the Ryzen 9 PRO 3900 offers 12 cores / 24 threads — the Ryzen 9 PRO 3900 has 4 more cores. Boost clocks reach 5.1 GHz on the Ryzen 7 8700G versus 4.3 GHz on the Ryzen 9 PRO 3900 — a 17% clock advantage for the Ryzen 7 8700G (base: 4.2 GHz vs 3.1 GHz). The Ryzen 7 8700G uses the Phoenix (2023−2024) architecture (4 nm), while the Ryzen 9 PRO 3900 uses Zen 2 (2017−2020) (7 nm, 12 nm). In PassMark, the Ryzen 7 8700G scores 31,649 against the Ryzen 9 PRO 3900's 31,251 — a 1.3% lead for the Ryzen 7 8700G. Cinebench R23 multi-core: 18,000 vs 17,500 (2.8% advantage for the Ryzen 7 8700G). Geekbench 6 single-core — the metric most relevant to gaming — records 2,720 vs 1,688, a 46.8% lead for the Ryzen 7 8700G that directly translates to higher frame rates. Multi-core Geekbench: 14,326 vs 10,000 (35.6% advantage for the Ryzen 7 8700G). L3 cache: 16 MB (total) on the Ryzen 7 8700G vs 64 MB on the Ryzen 9 PRO 3900.

Feature	Ryzen 7 8700G	Ryzen 9 PRO 3900
Cores / Threads	8 / 16	12 / 24+50%
Boost Clock	5.1 GHz+19%	4.3 GHz
Base Clock	4.2 GHz+35%	3.1 GHz
L3 Cache	16 MB (total)	64 MB+300%
L2 Cache	1 MB (per core)	6 MB+500%
Process	4 nm-43%	7 nm, 12 nm
Architecture	Phoenix (2023−2024)	Zen 2 (2017−2020)
PassMark	31,649+1%	31,251
Cinebench R23 Multi	18,000+3%	17,500
Geekbench 6 Single	2,720+61%	1,688
Geekbench 6 Multi	14,326+43%	10,000

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Memory & Platform

The Ryzen 7 8700G uses the AM5 socket (PCIe 4.0), while the Ryzen 9 PRO 3900 uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 7 8700G versus DDR4-3200 on the Ryzen 9 PRO 3900 — the Ryzen 7 8700G supports 62.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 8700G supports up to 256 GB of RAM compared to 128 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Ryzen 7 8700G) vs 24 (Ryzen 9 PRO 3900) — the Ryzen 9 PRO 3900 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X670,B650,A620 (Ryzen 7 8700G) and X570,B550,X470,B450 (Ryzen 9 PRO 3900).

Feature	Ryzen 7 8700G	Ryzen 9 PRO 3900
Socket	AM5	AM4
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR5-5200+63%	DDR4-3200
Max RAM Capacity	256 GB+100%	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	24+20%

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Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 7 8700G supports AVX-512 instructions — important for machine learning and scientific applications. Both support AMD-V virtualization. The Ryzen 7 8700G includes integrated graphics (Radeon 780M), while the Ryzen 9 PRO 3900 requires a dedicated GPU. Primary use case: Ryzen 7 8700G targets High-end Desktop APU, Ryzen 9 PRO 3900 targets Professional Content Creation. Direct competitor: Ryzen 7 8700G rivals Core i7-13700; Ryzen 9 PRO 3900 rivals Core i9-10900.

Feature	Ryzen 7 8700G	Ryzen 9 PRO 3900
Integrated GPU	Yes	No
IGPU Model	Radeon 780M	—
Unlocked	Yes	Yes
AVX-512	Yes	No
Virtualization	AMD-V	AMD-V
Target Use	High-end Desktop APU	Professional Content Creation

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Value Analysis

At launch, the Ryzen 7 8700G was priced at $329, while the Ryzen 9 PRO 3900 came in at $499. On launch pricing ($329 vs $499), Ryzen 7 8700G was $170 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 7 8700G delivers 96.2 pts/$ vs 62.6 pts/$ for the Ryzen 9 PRO 3900 — making the Ryzen 7 8700G the 42.3% better value option.

Feature	Ryzen 7 8700G	Ryzen 9 PRO 3900
MSRP	$329-34%	$499
Performance per Dollar	96.2+54%	62.6
Release Date	2024	2019

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