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 9 7945HX3D

2023

Why buy it

✅Better for gaming: +14.0% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 205W, a 150W reduction.
✅Integrated graphics onboard with AMD Radeon 610M, while Xeon Gold 5420+ needs a discrete GPU.

Trade-offs

❌Lower PassMark (57,803 vs 58,209).
❌Less compelling for workstation-style loads than Xeon Gold 5420+, which brings 28 cores / 56 threads and 80 PCIe lanes.

Xeon Gold 5420+

2023

Why buy it

✅+0.7% higher PassMark.
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 80 PCIe lanes vs 28.
✅185.7% more PCIe lanes (80 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX3D across 50 shared CPU benchmark tests.
❌Launch MSRP is still $1,848 MSRP, while Ryzen 9 7945HX3D mostly shows up through inconsistent older-market listings.
❌272.7% higher power demand at 205W vs 55W.
❌No integrated graphics, while Ryzen 9 7945HX3D can still boot and troubleshoot without a discrete GPU.

Ryzen 9 7945HX3D

2023

Xeon Gold 5420+

2023

Why buy it

✅Better for gaming: +14.0% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 205W, a 150W reduction.
✅Integrated graphics onboard with AMD Radeon 610M, while Xeon Gold 5420+ needs a discrete GPU.

Why buy it

✅+0.7% higher PassMark.
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 80 PCIe lanes vs 28.
✅185.7% more PCIe lanes (80 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (57,803 vs 58,209).
❌Less compelling for workstation-style loads than Xeon Gold 5420+, which brings 28 cores / 56 threads and 80 PCIe lanes.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX3D across 50 shared CPU benchmark tests.
❌Launch MSRP is still $1,848 MSRP, while Ryzen 9 7945HX3D mostly shows up through inconsistent older-market listings.
❌272.7% higher power demand at 205W vs 55W.
❌No integrated graphics, while Ryzen 9 7945HX3D can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 7945HX3D better than Xeon Gold 5420+?

Not in a simple one-size-fits-all way. Xeon Gold 5420+ makes more sense for workstation-style multi-core throughput, while Ryzen 9 7945HX3D is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

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

For streaming, content creation, and heavier multitasking, Xeon Gold 5420+ is the better fit. You are getting 0.7% better PassMark, backed by 28 cores and 56 threads.

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

Ryzen 9 7945HX3D is still the faster CPU overall, but Xeon Gold 5420+ makes more sense if price matters more than absolute performance. Ryzen 9 7945HX3D is at an unclear MSRP at unclear MSRP versus $1,848 MSRP, and it gives you a 14.0% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Xeon Gold 5420+ is still stronger for heavier multi-core work with 0.7% better PassMark. Xeon Gold 5420+ is also 100.0% better value on MSRP (31.5 vs 0.0 PassMark/$), 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 9 7945HX3D 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 53 MB. That extra cache should hold up really well in CPU-limited games and high-refresh builds.

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 9 7945HX3D Benchmark Check

Xeon Gold 5420+ Benchmark Check

Path of Exile 2

Preset	Ryzen 9 7945HX3D	Xeon Gold 5420+
1080p
low	279 FPS	200 FPS
medium	257 FPS	165 FPS
high	210 FPS	137 FPS
ultra	178 FPS	107 FPS
1440p
low	263 FPS	159 FPS
medium	220 FPS	124 FPS
high	169 FPS	98 FPS
ultra	149 FPS	77 FPS
4K
low	183 FPS	73 FPS
medium	152 FPS	61 FPS
high	116 FPS	48 FPS
ultra	103 FPS	39 FPS

Open Ryzen 9 7945HX3D Open Xeon Gold 5420+

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 7945HX3D	Xeon Gold 5420+
1080p
low	673 FPS	298 FPS
medium	580 FPS	265 FPS
high	432 FPS	221 FPS
ultra	363 FPS	197 FPS
1440p
low	559 FPS	261 FPS
medium	499 FPS	234 FPS
high	385 FPS	201 FPS
ultra	301 FPS	168 FPS
4K
low	314 FPS	163 FPS
medium	284 FPS	149 FPS
high	250 FPS	138 FPS
ultra	211 FPS	124 FPS

Open Ryzen 9 7945HX3D Open Xeon Gold 5420+

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 7945HX3D	Xeon Gold 5420+
1080p
low	1025 FPS	1025 FPS
medium	1077 FPS	980 FPS
high	1022 FPS	906 FPS
ultra	875 FPS	822 FPS
1440p
low	884 FPS	847 FPS
medium	805 FPS	753 FPS
high	740 FPS	685 FPS
ultra	647 FPS	615 FPS
4K
low	539 FPS	531 FPS
medium	464 FPS	437 FPS
high	418 FPS	378 FPS
ultra	355 FPS	310 FPS

Open Ryzen 9 7945HX3D Open Xeon Gold 5420+

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 7945HX3D	Xeon Gold 5420+
1080p
low	1051 FPS	916 FPS
medium	951 FPS	832 FPS
high	833 FPS	717 FPS
ultra	745 FPS	621 FPS
1440p
low	831 FPS	721 FPS
medium	736 FPS	634 FPS
high	645 FPS	543 FPS
ultra	555 FPS	470 FPS
4K
low	607 FPS	525 FPS
medium	544 FPS	469 FPS
high	482 FPS	411 FPS
ultra	416 FPS	354 FPS

Open Ryzen 9 7945HX3D Open Xeon Gold 5420+

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 7945HX3D and Xeon Gold 5420+

Ryzen 9 7945HX3D

The Ryzen 9 7945HX3D is manufactured by AMD. It was released in 2023-07-27. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.3 GHz, with boost up to 5.4 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5-5200. Passmark benchmark score: 57,803 points. Launch price was $800.

Xeon Gold 5420+

The Xeon Gold 5420+ is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 4.1 GHz. L3 cache: 52.5 MB. L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 205 Watt. Memory support: DDR5-4400. Passmark benchmark score: 58,209 points. Launch price was $1,848.

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Processing Power

The Ryzen 9 7945HX3D packs 16 cores / 32 threads, while the Xeon Gold 5420+ offers 28 cores / 56 threads — the Xeon Gold 5420+ has 12 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 7945HX3D versus 4.1 GHz on the Xeon Gold 5420+ — a 27.4% clock advantage for the Ryzen 9 7945HX3D (base: 2.3 GHz vs 2 GHz). The Ryzen 9 7945HX3D uses the Dragon Range-HX (Zen 4) (2023−2024) architecture (5 nm), while the Xeon Gold 5420+ uses Sapphire Rapids (2023−2024) (10 nm). In PassMark, the Ryzen 9 7945HX3D scores 57,803 against the Xeon Gold 5420+'s 58,209 — a 0.7% lead for the Xeon Gold 5420+. L3 cache: 128 MB (total) on the Ryzen 9 7945HX3D vs 52.5 MB on the Xeon Gold 5420+.

Feature	Ryzen 9 7945HX3D	Xeon Gold 5420+
Cores / Threads	16 / 32	28 / 56+75%
Boost Clock	5.4 GHz+32%	4.1 GHz
Base Clock	2.3 GHz+15%	2 GHz
L3 Cache	128 MB (total)+144%	52.5 MB
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	5 nm-50%	10 nm
Architecture	Dragon Range-HX (Zen 4) (2023−2024)	Sapphire Rapids (2023−2024)
PassMark	57,803	58,209

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Memory & Platform

The Ryzen 9 7945HX3D uses the FL1 socket (PCIe 5.0), while the Xeon Gold 5420+ uses LGA4677 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5200 on the Ryzen 9 7945HX3D versus 4800 on the Xeon Gold 5420+ — the Ryzen 9 7945HX3D supports 8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 5420+ supports up to 4096 of RAM compared to 128 — 187.9% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 7945HX3D) vs 8 (Xeon Gold 5420+). PCIe lanes: 28 (Ryzen 9 7945HX3D) vs 80 (Xeon Gold 5420+) — the Xeon Gold 5420+ offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FL1 (Ryzen 9 7945HX3D) and C741 (Xeon Gold 5420+).

Feature	Ryzen 9 7945HX3D	Xeon Gold 5420+
Socket	FL1	LGA4677
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	5200+8%	4800
Max RAM Capacity	128	4096+3100%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	28	80+186%

🔧

Advanced Features

Only the Ryzen 9 7945HX3D 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: VT-x, VT-d, AMD-V (Ryzen 9 7945HX3D) vs VT-x, VT-d (Xeon Gold 5420+). The Ryzen 9 7945HX3D includes integrated graphics (AMD Radeon 610M), while the Xeon Gold 5420+ requires a dedicated GPU. Direct competitor: Ryzen 9 7945HX3D rivals Core Ultra 9 285HX; Xeon Gold 5420+ rivals EPYC 9354.

Feature	Ryzen 9 7945HX3D	Xeon Gold 5420+
Integrated GPU	Yes	No
IGPU Model	AMD Radeon 610M	None
Unlocked	Yes	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	VT-x, VT-d

💰

Value Analysis

The Ryzen 9 7945HX3D launched at $0 MSRP, while the Xeon Gold 5420+ debuted at $1848. On MSRP ($0 vs $1848), the Ryzen 9 7945HX3D is $1848 cheaper.