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.

Core i5-9400

2019

Why buy it

✅Costs $107 less on MSRP ($192 MSRP vs $299 MSRP).
✅Integrated graphics onboard with UHD Graphics 630, while Ryzen 5 5600X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 5600X across 50 shared CPU benchmark tests.
❌Lower PassMark (9,372 vs 21,845).
❌Smaller total L3 cache (9 MB vs 32 MB).
❌Lower PassMark per dollar, at 48.8 vs 73.1 PassMark/$ ($192 MSRP vs $299 MSRP).

Ryzen 5 5600X

2020

Why buy it

✅Better for gaming: +59.3% higher average FPS across 50 shared CPU benchmark tests.
✅+255.6% larger total L3 cache (32 MB vs 9 MB).
✅Delivers 49.7% more PassMark for each dollar spent, at 73.1 vs 48.8 PassMark/$ ($299 MSRP vs $192 MSRP).
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌
55.7% HIGHER MSRP
$299 MSRPvs$192 MSRP
❌No integrated graphics, while Core i5-9400 can still boot and troubleshoot without a discrete GPU.

Core i5-9400

2019

Ryzen 5 5600X

2020

Why buy it

✅Costs $107 less on MSRP ($192 MSRP vs $299 MSRP).
✅Integrated graphics onboard with UHD Graphics 630, while Ryzen 5 5600X needs a discrete GPU.

Why buy it

✅Better for gaming: +59.3% higher average FPS across 50 shared CPU benchmark tests.
✅+255.6% larger total L3 cache (32 MB vs 9 MB).
✅Delivers 49.7% more PassMark for each dollar spent, at 73.1 vs 48.8 PassMark/$ ($299 MSRP vs $192 MSRP).
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 5600X across 50 shared CPU benchmark tests.
❌Lower PassMark (9,372 vs 21,845).
❌Smaller total L3 cache (9 MB vs 32 MB).
❌Lower PassMark per dollar, at 48.8 vs 73.1 PassMark/$ ($192 MSRP vs $299 MSRP).

Trade-offs

❌
55.7% HIGHER MSRP
$299 MSRPvs$192 MSRP
❌No integrated graphics, while Core i5-9400 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 5 5600X better than Core i5-9400?

Yes. Ryzen 5 5600X is the better overall CPU here. You are getting a 59.3% average FPS lead across 50 shared CPU game tests in our data, 133.1% better 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 5 5600X is the better pick here. According to our tests, it delivers 59.3% 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 5 5600X is the better fit. You are getting 133.1% better PassMark, backed by 6 cores and 12 threads. It also carries the larger cache pool with 255.6% larger total L3 cache (32 MB vs 9 MB).

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

Ryzen 5 5600X is the smarter buy today. Ryzen 5 5600X is 55.7% more expensive on MSRP at $299 MSRP versus $192 MSRP, and it gives you a 59.3% average FPS lead across 50 shared CPU game tests in our data. It is also 49.7% better value on MSRP (73.1 vs 48.8 PassMark/$), 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 5 5600X is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2019), 255.6% larger total L3 cache (32 MB vs 9 MB), and more multi-core headroom with 6 cores / 12 threads instead of 6/6. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

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.

Core i5-9400 Benchmark Check

Ryzen 5 5600X Benchmark Check

Path of Exile 2

Preset	Core i5-9400	Ryzen 5 5600X
1080p
low	179 FPS	203 FPS
medium	144 FPS	174 FPS
high	115 FPS	140 FPS
ultra	91 FPS	107 FPS
1440p
low	152 FPS	169 FPS
medium	122 FPS	141 FPS
high	96 FPS	113 FPS
ultra	75 FPS	86 FPS
4K
low	71 FPS	85 FPS
medium	61 FPS	76 FPS
high	48 FPS	60 FPS
ultra	37 FPS	47 FPS

Open Core i5-9400 Open Ryzen 5 5600X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-9400	Ryzen 5 5600X
1080p
low	234 FPS	464 FPS
medium	234 FPS	387 FPS
high	234 FPS	324 FPS
ultra	222 FPS	291 FPS
1440p
low	234 FPS	397 FPS
medium	234 FPS	334 FPS
high	226 FPS	290 FPS
ultra	202 FPS	253 FPS
4K
low	234 FPS	263 FPS
medium	216 FPS	226 FPS
high	196 FPS	205 FPS
ultra	170 FPS	171 FPS

Open Core i5-9400 Open Ryzen 5 5600X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-9400	Ryzen 5 5600X
1080p
low	234 FPS	546 FPS
medium	234 FPS	473 FPS
high	234 FPS	432 FPS
ultra	234 FPS	358 FPS
1440p
low	234 FPS	508 FPS
medium	234 FPS	413 FPS
high	234 FPS	375 FPS
ultra	234 FPS	312 FPS
4K
low	234 FPS	348 FPS
medium	226 FPS	292 FPS
high	192 FPS	255 FPS
ultra	152 FPS	199 FPS

Open Core i5-9400 Open Ryzen 5 5600X

League of Legends

League of Legends

Valorant

Preset	Core i5-9400	Ryzen 5 5600X
1080p
low	234 FPS	546 FPS
medium	234 FPS	546 FPS
high	234 FPS	546 FPS
ultra	234 FPS	546 FPS
1440p
low	234 FPS	546 FPS
medium	234 FPS	546 FPS
high	234 FPS	546 FPS
ultra	234 FPS	524 FPS
4K
low	234 FPS	529 FPS
medium	234 FPS	484 FPS
high	234 FPS	435 FPS
ultra	234 FPS	379 FPS

Open Core i5-9400 Open Ryzen 5 5600X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-9400 and Ryzen 5 5600X

Core i5-9400

The Core i5-9400 is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 6 cores and 6 threads. Base frequency is 2.9 GHz, with boost up to 4.1 GHz. L3 cache: 9 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2666. Passmark benchmark score: 9,372 points. Launch price was $182.

Ryzen 5 5600X

The Ryzen 5 5600X 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 6 cores and 12 threads. Base frequency is 3.7 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 21,845 points. Launch price was $299.

⚡

Processing Power

The Core i5-9400 packs 6 cores / 6 threads, matching the Ryzen 5 5600X's 6 cores. Boost clocks reach 4.1 GHz on the Core i5-9400 versus 4.6 GHz on the Ryzen 5 5600X — a 11.5% clock advantage for the Ryzen 5 5600X (base: 2.9 GHz vs 3.7 GHz). The Core i5-9400 uses the Coffee Lake (2017−2019) architecture (14 nm), while the Ryzen 5 5600X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core i5-9400 scores 9,372 against the Ryzen 5 5600X's 21,845 — a 79.9% lead for the Ryzen 5 5600X. L3 cache: 9 MB (total) on the Core i5-9400 vs 32 MB on the Ryzen 5 5600X.

Feature	Core i5-9400	Ryzen 5 5600X
Cores / Threads	6 / 6	6 / 12
Boost Clock	4.1 GHz	4.6 GHz+12%
Base Clock	2.9 GHz	3.7 GHz+28%
L3 Cache	9 MB (total)	32 MB+256%
L2 Cache	256K (per core)	512K (per core)+100%
Process	14 nm	7 nm, 12 nm-50%
Architecture	Coffee Lake (2017−2019)	Vermeer (Zen 3) (2020−2022)
PassMark	9,372	21,845+133%

🧠

Memory & Platform

The Core i5-9400 uses the LGA1151 socket (PCIe 3.0), while the Ryzen 5 5600X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 memory speed. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-9400) vs 24 (Ryzen 5 5600X) — the Ryzen 5 5600X offers 8 more lanes for additional GPUs or NVMe drives.

Feature	Core i5-9400	Ryzen 5 5600X
Socket	LGA1151	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2666	DDR4-3200
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	24+50%

🔧

Advanced Features

Only the Ryzen 5 5600X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i5-9400) vs AMD-V (Ryzen 5 5600X). The Core i5-9400 includes integrated graphics (UHD Graphics 630), while the Ryzen 5 5600X requires a dedicated GPU. Primary use case: Core i5-9400 targets Desktop, Ryzen 5 5600X targets Desktop.

Feature	Core i5-9400	Ryzen 5 5600X
Integrated GPU	Yes	No
IGPU Model	UHD Graphics 630	—
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	AMD-V
Target Use	Desktop	Desktop

💰

Value Analysis

The Core i5-9400 launched at $192 MSRP, while the Ryzen 5 5600X debuted at $299. On MSRP ($192 vs $299), the Core i5-9400 is $107 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-9400 delivers 48.8 pts/$ vs 73.1 pts/$ for the Ryzen 5 5600X — making the Ryzen 5 5600X the 39.8% better value option.