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 5800X

2020

Why buy it

✅+12.9% higher PassMark.
✅+100% larger total L3 cache (32 MB vs 16 MB).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7840U across 50 shared CPU benchmark tests.
❌
12.3% HIGHER MSRP
$449 MSRPvs$400 MSRP
❌275% higher power demand at 105W vs 28W.
❌Older platform position on AM4 with DDR4, while Ryzen 7 7840U moves to FP8 and DDR5.

Ryzen 7 7840U

2023

Why buy it

✅Better for gaming: +8.1% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $49 less on MSRP ($400 MSRP vs $449 MSRP).
✅Draws 28W instead of 105W, a 77W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.

Trade-offs

❌Lower PassMark (24,547 vs 27,712).
❌Smaller total L3 cache (16 MB vs 32 MB).

Ryzen 7 5800X

2020

Ryzen 7 7840U

2023

Why buy it

✅+12.9% higher PassMark.
✅+100% larger total L3 cache (32 MB vs 16 MB).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Why buy it

✅Better for gaming: +8.1% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $49 less on MSRP ($400 MSRP vs $449 MSRP).
✅Draws 28W instead of 105W, a 77W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7840U across 50 shared CPU benchmark tests.
❌
12.3% HIGHER MSRP
$449 MSRPvs$400 MSRP
❌275% higher power demand at 105W vs 28W.
❌Older platform position on AM4 with DDR4, while Ryzen 7 7840U moves to FP8 and DDR5.

Trade-offs

❌Lower PassMark (24,547 vs 27,712).
❌Smaller total L3 cache (16 MB vs 32 MB).

Quick Answers

So, is Ryzen 7 7840U better than Ryzen 7 5800X?

It depends on what matters more to you. For gaming, Ryzen 7 7840U is ahead with a 8.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 7 5800X pulls ahead with 12.9% better PassMark. Ryzen 7 5800X also has the bigger cache pool with 100% larger total L3 cache (32 MB vs 16 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 7 5800X is the better fit. You are getting 12.9% better PassMark, backed by 8 cores and 16 threads. It also carries the larger cache pool with 100% larger total L3 cache (32 MB vs 16 MB).

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

Ryzen 7 7840U is still the faster CPU overall, but Ryzen 7 5800X makes more sense if price matters more than absolute performance. Ryzen 7 7840U is $49 cheaper on MSRP at $400 MSRP versus $449 MSRP, and it gives you a 8.1% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Ryzen 7 5800X is still stronger for heavier multi-core work with 12.9% better PassMark. Ryzen 7 5800X is also 0.6% better value on MSRP (61.7 vs 61.4 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Ryzen 7 7840U is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020) and a healthier platform with FP8 and DDR5 instead of AM4. 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 5800X Benchmark Check

Ryzen 7 7840U Benchmark Check

Path of Exile 2

Preset	Ryzen 7 5800X	Ryzen 7 7840U
1080p
low	206 FPS	257 FPS
medium	178 FPS	237 FPS
high	146 FPS	200 FPS
ultra	110 FPS	173 FPS
1440p
low	170 FPS	228 FPS
medium	142 FPS	191 FPS
high	115 FPS	155 FPS
ultra	88 FPS	138 FPS
4K
low	83 FPS	159 FPS
medium	74 FPS	134 FPS
high	59 FPS	104 FPS
ultra	46 FPS	92 FPS

Open Ryzen 7 5800X Open Ryzen 7 7840U

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 7 5800X	Ryzen 7 7840U
1080p
low	662 FPS	477 FPS
medium	558 FPS	395 FPS
high	466 FPS	342 FPS
ultra	417 FPS	306 FPS
1440p
low	563 FPS	417 FPS
medium	493 FPS	364 FPS
high	423 FPS	315 FPS
ultra	361 FPS	270 FPS
4K
low	350 FPS	275 FPS
medium	308 FPS	251 FPS
high	288 FPS	238 FPS
ultra	250 FPS	206 FPS

Open Ryzen 7 5800X Open Ryzen 7 7840U

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 7 5800X	Ryzen 7 7840U
1080p
low	693 FPS	614 FPS
medium	651 FPS	614 FPS
high	570 FPS	614 FPS
ultra	464 FPS	595 FPS
1440p
low	693 FPS	614 FPS
medium	573 FPS	614 FPS
high	498 FPS	526 FPS
ultra	413 FPS	452 FPS
4K
low	484 FPS	525 FPS
medium	410 FPS	459 FPS
high	363 FPS	407 FPS
ultra	302 FPS	345 FPS

Open Ryzen 7 5800X Open Ryzen 7 7840U

League of Legends

League of Legends

Valorant

Preset	Ryzen 7 5800X	Ryzen 7 7840U
1080p
low	693 FPS	614 FPS
medium	693 FPS	614 FPS
high	693 FPS	614 FPS
ultra	693 FPS	614 FPS
1440p
low	693 FPS	614 FPS
medium	693 FPS	614 FPS
high	672 FPS	614 FPS
ultra	593 FPS	549 FPS
4K
low	604 FPS	560 FPS
medium	550 FPS	502 FPS
high	495 FPS	447 FPS
ultra	436 FPS	384 FPS

Open Ryzen 7 5800X Open Ryzen 7 7840U

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 7 5800X and Ryzen 7 7840U

Ryzen 7 5800X

The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) 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: 27,712 points. Launch price was $449.

Ryzen 7 7840U

The Ryzen 7 7840U is manufactured by AMD. It was released in Maio 2023 (2 years ago). It is based on the Phoenix-U (Zen 4) (2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 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: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5-5600. Passmark benchmark score: 24,547 points. Launch price was $299.

⚡

Processing Power

Both the Ryzen 7 5800X and Ryzen 7 7840U share an identical 8-core/16-thread configuration. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 5.1 GHz on the Ryzen 7 7840U — a 8.2% clock advantage for the Ryzen 7 7840U (base: 3.8 GHz vs 3.3 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the Ryzen 7 7840U uses Phoenix-U (Zen 4) (2023) (4 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the Ryzen 7 7840U's 24,547 — a 12.1% lead for the Ryzen 7 5800X. L3 cache: 32 MB on the Ryzen 7 5800X vs 16 MB (total) on the Ryzen 7 7840U.

Feature	Ryzen 7 5800X	Ryzen 7 7840U
Cores / Threads	8 / 16	8 / 16
Boost Clock	4.7 GHz	5.1 GHz+9%
Base Clock	3.8 GHz+15%	3.3 GHz
L3 Cache	32 MB+100%	16 MB (total)
L2 Cache	512K (per core)	1 MB (per core)+100%
Process	7 nm, 12 nm	4 nm-43%
Architecture	Vermeer (Zen 3) (2020−2022)	Phoenix-U (Zen 4) (2023)
PassMark	27,712+13%	24,547

🧠

Memory & Platform

The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the Ryzen 7 7840U uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Ryzen 7 5800X	Ryzen 7 7840U
Socket	AM4	FP8
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	24	—

🔧

Advanced Features

Virtualization: AMD-V (Ryzen 7 5800X) / not specified (Ryzen 7 7840U). Primary use case: Ryzen 7 5800X targets Desktop.

Feature	Ryzen 7 5800X	Ryzen 7 7840U
Integrated GPU	No	—
Unlocked	Yes	—
AVX-512	No	—
Virtualization	AMD-V	—
Target Use	Desktop	—

💰

Value Analysis

The Ryzen 7 5800X launched at $449 MSRP, while the Ryzen 7 7840U debuted at $400. On MSRP ($449 vs $400), the Ryzen 7 7840U is $49 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 7 5800X delivers 61.7 pts/$ vs 61.4 pts/$ for the Ryzen 7 7840U — making the Ryzen 7 5800X the 0.6% better value option.