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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Ryzen 7 7840S

2023

Why buy it

✅Draws 8W instead of 120W, a 112W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7950X3D across 4 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (13,500 vs 38,581).

Ryzen 9 7950X3D

2023

Why buy it

✅Better for gaming: +36.5% higher average FPS across 4 shared CPU benchmark tests.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $699 MSRP, while Ryzen 7 7840S mostly shows up through inconsistent older-market listings.
❌1400% higher power demand at 120W vs 8W.

Ryzen 7 7840S

2023

Ryzen 9 7950X3D

2023

Why buy it

✅Draws 8W instead of 120W, a 112W reduction.

Why buy it

✅Better for gaming: +36.5% higher average FPS across 4 shared CPU benchmark tests.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7950X3D across 4 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (13,500 vs 38,581).

Trade-offs

❌Launch MSRP is still $699 MSRP, while Ryzen 7 7840S mostly shows up through inconsistent older-market listings.
❌1400% higher power demand at 120W vs 8W.

Quick Answers

So, is Ryzen 9 7950X3D better than Ryzen 7 7840S?

Yes. Ryzen 9 7950X3D is the better overall CPU here. You are getting a 36.5% average FPS lead across 4 shared CPU game tests in our data, 185.8% better Cinebench R23 multi-core, 167.6% higher PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 7950X3D is the better pick here. According to our tests, it delivers 36.5% more average FPS across 4 shared CPU game tests. It also has a big cache advantage at 128 MB vs 16 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 7950X3D is the better fit. You are getting 185.8% better Cinebench R23 multi-core, backed by 16 cores and 32 threads. It also carries the larger cache pool with 700% larger total L3 cache (128 MB vs 16 MB).

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

Ryzen 9 7950X3D is the smarter buy today. Ryzen 9 7950X3D is at an unclear MSRP at $699 MSRP versus unclear MSRP, and it gives you a 36.5% average FPS lead across 4 shared CPU game tests in our data. It is also 100.0% better value on MSRP (89.2 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Ryzen 9 7950X3D is the more future-proof choice for 2026 and beyond. You are getting 3D V-Cache and a much larger 128 MB L3 cache instead of 16 MB and more multi-core headroom with 16 cores / 32 threads instead of 8/16. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Ryzen 7 7840S Benchmark Check

Ryzen 9 7950X3D Benchmark Check

Path of Exile 2

Preset	Ryzen 7 7840S	Ryzen 9 7950X3D
1080p
low	269 FPS	291 FPS
medium	243 FPS	265 FPS
high	204 FPS	219 FPS
ultra	176 FPS	186 FPS
1440p
low	236 FPS	275 FPS
medium	193 FPS	227 FPS
high	157 FPS	177 FPS
ultra	139 FPS	156 FPS
4K
low	164 FPS	190 FPS
medium	136 FPS	156 FPS
high	105 FPS	120 FPS
ultra	92 FPS	107 FPS

Open Ryzen 7 7840S Open Ryzen 9 7950X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 7 7840S	Ryzen 9 7950X3D
1080p
low	509 FPS	734 FPS
medium	419 FPS	627 FPS
high	361 FPS	465 FPS
ultra	322 FPS	393 FPS
1440p
low	445 FPS	602 FPS
medium	386 FPS	536 FPS
high	332 FPS	413 FPS
ultra	283 FPS	326 FPS
4K
low	293 FPS	338 FPS
medium	266 FPS	305 FPS
high	251 FPS	268 FPS
ultra	216 FPS	229 FPS

Open Ryzen 7 7840S Open Ryzen 9 7950X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 7 7840S	Ryzen 9 7950X3D
1080p
low	582 FPS	1025 FPS
medium	582 FPS	1122 FPS
high	582 FPS	1062 FPS
ultra	546 FPS	875 FPS
1440p
low	582 FPS	936 FPS
medium	582 FPS	845 FPS
high	541 FPS	775 FPS
ultra	464 FPS	656 FPS
4K
low	541 FPS	574 FPS
medium	473 FPS	498 FPS
high	419 FPS	447 FPS
ultra	355 FPS	378 FPS

Open Ryzen 7 7840S Open Ryzen 9 7950X3D

League of Legends

League of Legends

Valorant

Preset	Ryzen 7 7840S	Ryzen 9 7950X3D
1080p
low	582 FPS	1082 FPS
medium	582 FPS	973 FPS
high	582 FPS	854 FPS
ultra	582 FPS	766 FPS
1440p
low	582 FPS	853 FPS
medium	582 FPS	751 FPS
high	582 FPS	659 FPS
ultra	573 FPS	569 FPS
4K
low	572 FPS	623 FPS
medium	511 FPS	555 FPS
high	457 FPS	493 FPS
ultra	394 FPS	426 FPS

Open Ryzen 7 7840S Open Ryzen 9 7950X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 7 7840S and Ryzen 9 7950X3D

Ryzen 7 7840S

The Ryzen 7 7840S is manufactured by AMD. It was released in 5 January 2023 (2 years ago). It is based on the Phoenix-HS (Zen 4) (2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB. L2 cache: 8 MB. Built on 4 nm process technology. Socket: FP7/FP7r2/FP8. Thermal design power (TDP): 8 MB + 16 MB. Memory support: DDR5. Passmark benchmark score: 23,290 points. Launch price was $299.

Ryzen 9 7950X3D

The Ryzen 9 7950X3D 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 16 cores and 32 threads. Base frequency is 4.2 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 62,323 points. Launch price was $699.

⚡

Processing Power

The Ryzen 7 7840S packs 8 cores / 16 threads, while the Ryzen 9 7950X3D offers 16 cores / 32 threads — the Ryzen 9 7950X3D has 8 more cores. Boost clocks reach 5.1 GHz on the Ryzen 7 7840S versus 5.7 GHz on the Ryzen 9 7950X3D — a 11.1% clock advantage for the Ryzen 9 7950X3D (base: 3.8 GHz vs 4.2 GHz). The Ryzen 7 7840S uses the Phoenix-HS (Zen 4) (2023) architecture (4 nm), while the Ryzen 9 7950X3D uses Raphael (Zen4) (2022−2023) (5 nm, 6 nm). In PassMark, the Ryzen 7 7840S scores 23,290 against the Ryzen 9 7950X3D's 62,323 — a 91.2% lead for the Ryzen 9 7950X3D. Cinebench R23 multi-core: 13,500 vs 38,581 (96.3% advantage for the Ryzen 9 7950X3D). Geekbench 6 single-core — the metric most relevant to gaming — records 2,570 vs 2,926, a 13% lead for the Ryzen 9 7950X3D that directly translates to higher frame rates. Multi-core Geekbench: 13,535 vs 19,643 (36.8% advantage for the Ryzen 9 7950X3D). L3 cache: 16 MB on the Ryzen 7 7840S vs 128 MB (total) on the Ryzen 9 7950X3D.

Feature	Ryzen 7 7840S	Ryzen 9 7950X3D
Cores / Threads	8 / 16	16 / 32+100%
Boost Clock	5.1 GHz	5.7 GHz+12%
Base Clock	3.8 GHz	4.2 GHz+11%
L3 Cache	16 MB	128 MB (total)+700%
L2 Cache	8 MB+700%	1 MB (per core)
Process	4 nm-20%	5 nm, 6 nm
Architecture	Phoenix-HS (Zen 4) (2023)	Raphael (Zen4) (2022−2023)
PassMark	23,290	62,323+168%
Cinebench R23 Multi	13,500	38,581+186%
Geekbench 6 Single	2,570	2,926+14%
Geekbench 6 Multi	13,535	19,643+45%

🧠

Memory & Platform

The Ryzen 7 7840S uses the FP7/FP7r2/FP8 socket (PCIe 4.0), while the Ryzen 9 7950X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5600, LPDDR5x-7500 memory speed. The Ryzen 7 7840S supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Ryzen 7 7840S) vs 28 (Ryzen 9 7950X3D) — the Ryzen 9 7950X3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Ryzen 7 7840S) and AMD X670E,AMD X670,AMD B650E,AMD B650 (Ryzen 9 7950X3D).

Feature	Ryzen 7 7840S	Ryzen 9 7950X3D
Socket	FP7/FP7r2/FP8	AM5
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR5-5600, LPDDR5x-7500	DDR5-5200
Max RAM Capacity	256 GB+100%	128 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	20	28+40%

🔧

Advanced Features

Only the Ryzen 9 7950X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V (SVM) (Ryzen 7 7840S) vs true (Ryzen 9 7950X3D). Both include integrated graphics — Radeon 780M (Ryzen 7 7840S) and Radeon Graphics (Ryzen 9 7950X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 7840S targets Gaming. Direct competitor: Ryzen 7 7840S rivals Core i7-1360P; Ryzen 9 7950X3D rivals Core i9-13900K.