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.

EPYC 7443

2021

Why buy it

✅+4.3% higher PassMark.
✅+100% larger total L3 cache (128 MB vs 64 MB).
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads, plus 128 PCIe lanes vs 28.
✅357.1% more PCIe lanes (128 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX across 4 shared CPU benchmark tests.
❌Launch MSRP is still $2,010 MSRP, while Ryzen 9 7945HX mostly shows up through inconsistent older-market listings.
❌263.6% higher power demand at 200W vs 55W.
❌Older platform position on SP3 with DDR4, while Ryzen 9 7945HX moves to FL1 and DDR5.
❌No integrated graphics, while Ryzen 9 7945HX can still boot and troubleshoot without a discrete GPU.

Ryzen 9 7945HX

2023

Why buy it

✅Better for gaming: +24.3% higher average FPS across 4 shared CPU benchmark tests.
✅Draws 55W instead of 200W, a 145W reduction.
✅Newer platform on FL1 with DDR5 support instead of SP3 and DDR4.
✅Integrated graphics onboard with Radeon 610M, while EPYC 7443 needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike EPYC 7443.

Trade-offs

❌Lower PassMark (54,425 vs 56,743).
❌Smaller total L3 cache (64 MB vs 128 MB).
❌Less compelling for workstation-style loads than EPYC 7443, which brings 24 cores / 48 threads and 128 PCIe lanes.

EPYC 7443

2021

Ryzen 9 7945HX

2023

Why buy it

✅+4.3% higher PassMark.
✅+100% larger total L3 cache (128 MB vs 64 MB).
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads, plus 128 PCIe lanes vs 28.
✅357.1% more PCIe lanes (128 vs 28) for storage and expansion-heavy builds.

Why buy it

✅Better for gaming: +24.3% higher average FPS across 4 shared CPU benchmark tests.
✅Draws 55W instead of 200W, a 145W reduction.
✅Newer platform on FL1 with DDR5 support instead of SP3 and DDR4.
✅Integrated graphics onboard with Radeon 610M, while EPYC 7443 needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike EPYC 7443.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX across 4 shared CPU benchmark tests.
❌Launch MSRP is still $2,010 MSRP, while Ryzen 9 7945HX mostly shows up through inconsistent older-market listings.
❌263.6% higher power demand at 200W vs 55W.
❌Older platform position on SP3 with DDR4, while Ryzen 9 7945HX moves to FL1 and DDR5.
❌No integrated graphics, while Ryzen 9 7945HX can still boot and troubleshoot without a discrete GPU.

Trade-offs

❌Lower PassMark (54,425 vs 56,743).
❌Smaller total L3 cache (64 MB vs 128 MB).
❌Less compelling for workstation-style loads than EPYC 7443, which brings 24 cores / 48 threads and 128 PCIe lanes.

Quick Answers

So, is Ryzen 9 7945HX better than EPYC 7443?

Not in a simple one-size-fits-all way. EPYC 7443 makes more sense for workstation-style multi-core throughput, while Ryzen 9 7945HX 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, EPYC 7443 is the better fit. You are getting 4.3% better PassMark, backed by 24 cores and 48 threads. It also carries the larger cache pool with 100% larger total L3 cache (128 MB vs 64 MB).

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

Ryzen 9 7945HX is still the faster CPU overall, but EPYC 7443 makes more sense if price matters more than absolute performance. Ryzen 9 7945HX is at an unclear MSRP at unclear MSRP versus $2,010 MSRP, and it gives you a 24.3% average FPS lead across 4 shared CPU game tests in our data. The trade-off is that EPYC 7443 is still stronger for heavier multi-core work with 4.3% better PassMark. EPYC 7443 is also 100.0% better value on MSRP (28.2 vs 0.0 PassMark/$), 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 7945HX is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with FL1 and DDR5 instead of SP3, and AVX-512 support for heavier modern compute workloads. 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.

EPYC 7443 Benchmark Check

Ryzen 9 7945HX Benchmark Check

Path of Exile 2

Preset	EPYC 7443	Ryzen 9 7945HX
1080p
low	170 FPS	301 FPS
medium	141 FPS	276 FPS
high	120 FPS	224 FPS
ultra	95 FPS	190 FPS
1440p
low	148 FPS	271 FPS
medium	120 FPS	226 FPS
high	95 FPS	172 FPS
ultra	76 FPS	153 FPS
4K
low	70 FPS	189 FPS
medium	59 FPS	157 FPS
high	47 FPS	119 FPS
ultra	38 FPS	107 FPS

Open EPYC 7443 Open Ryzen 9 7945HX

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 7443	Ryzen 9 7945HX
1080p
low	506 FPS	744 FPS
medium	442 FPS	620 FPS
high	354 FPS	466 FPS
ultra	288 FPS	397 FPS
1440p
low	417 FPS	630 FPS
medium	373 FPS	541 FPS
high	307 FPS	419 FPS
ultra	242 FPS	328 FPS
4K
low	256 FPS	355 FPS
medium	233 FPS	309 FPS
high	205 FPS	272 FPS
ultra	170 FPS	230 FPS

Open EPYC 7443 Open Ryzen 9 7945HX

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 7443	Ryzen 9 7945HX
1080p
low	725 FPS	893 FPS
medium	619 FPS	712 FPS
high	572 FPS	618 FPS
ultra	504 FPS	533 FPS
1440p
low	543 FPS	718 FPS
medium	461 FPS	572 FPS
high	419 FPS	487 FPS
ultra	363 FPS	418 FPS
4K
low	400 FPS	513 FPS
medium	322 FPS	427 FPS
high	284 FPS	383 FPS
ultra	227 FPS	323 FPS

Open EPYC 7443 Open Ryzen 9 7945HX

League of Legends

League of Legends

Valorant

Preset	EPYC 7443	Ryzen 9 7945HX
1080p
low	915 FPS	1129 FPS
medium	830 FPS	1006 FPS
high	715 FPS	873 FPS
ultra	632 FPS	768 FPS
1440p
low	726 FPS	900 FPS
medium	633 FPS	790 FPS
high	542 FPS	689 FPS
ultra	469 FPS	584 FPS
4K
low	524 FPS	648 FPS
medium	468 FPS	578 FPS
high	411 FPS	510 FPS
ultra	352 FPS	436 FPS

Open EPYC 7443 Open Ryzen 9 7945HX

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 7443 and Ryzen 9 7945HX

EPYC 7443

The EPYC 7443 is manufactured by AMD. It was released in 15 March 2021 (4 years ago). It is based on the Milan (2021−2023) architecture. It features 24 cores and 48 threads. Base frequency is 2.85 GHz, with boost up to 4 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 200 Watt. Memory support: DDR4-3200. Passmark benchmark score: 56,743 points. Launch price was $2,010.

Ryzen 9 7945HX

The Ryzen 9 7945HX is manufactured by AMD. It was released in 2023-03-12. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on CCD = 5 nm, I/O = 6 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 54,425 points. Launch price was $700.

⚡

Processing Power

The EPYC 7443 packs 24 cores / 48 threads, while the Ryzen 9 7945HX offers 16 cores / 32 threads — the EPYC 7443 has 8 more cores. Boost clocks reach 4 GHz on the EPYC 7443 versus 5.4 GHz on the Ryzen 9 7945HX — a 29.8% clock advantage for the Ryzen 9 7945HX (base: 2.85 GHz vs 2.5 GHz). The EPYC 7443 uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen 9 7945HX uses Dragon Range-HX (Zen 4) (2023−2024) (CCD = 5 nm, I/O = 6 nm). In PassMark, the EPYC 7443 scores 56,743 against the Ryzen 9 7945HX's 54,425 — a 4.2% lead for the EPYC 7443. L3 cache: 128 MB (total) on the EPYC 7443 vs 64 MB (total) on the Ryzen 9 7945HX.

Feature	EPYC 7443	Ryzen 9 7945HX
Cores / Threads	24 / 48+50%	16 / 32
Boost Clock	4 GHz	5.4 GHz+35%
Base Clock	2.85 GHz+14%	2.5 GHz
L3 Cache	128 MB (total)+100%	64 MB (total)
L2 Cache	512 kB (per core)	1 MB (per core)+100%
Process	7 nm+	CCD = 5 nm, I/O = 6 nm-29%
Architecture	Milan (2021−2023)	Dragon Range-HX (Zen 4) (2023−2024)
PassMark	56,743+4%	54,425
Cinebench R23 Multi	—	34,521
Geekbench 6 Single	—	2,774
Geekbench 6 Multi	—	16,214

🧠

Memory & Platform

The EPYC 7443 uses the SP3 socket (PCIe 4.0), while the Ryzen 9 7945HX uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7443 versus DDR5-5200 on the Ryzen 9 7945HX — the EPYC 7443 supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7443 supports up to 4096 of RAM compared to 64 GB — 193.8% more capacity for professional workloads. Memory channels: 8 (EPYC 7443) vs 2 (Ryzen 9 7945HX). PCIe lanes: 128 (EPYC 7443) vs 28 (Ryzen 9 7945HX) — the EPYC 7443 offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7443) and FL1 (Ryzen 9 7945HX).

Feature	EPYC 7443	Ryzen 9 7945HX
Socket	SP3	FL1
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	3200+63900%	DDR5-5200
Max RAM Capacity	4096	64 GB+1638300%
RAM Channels	8+300%	2
ECC Support	Yes	Yes
PCIe Lanes	128+357%	28

🔧

Advanced Features

Only the Ryzen 9 7945HX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 9 7945HX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (EPYC 7443) vs AMD-V (Ryzen 9 7945HX). The Ryzen 9 7945HX includes integrated graphics (Radeon 610M), while the EPYC 7443 requires a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation. Direct competitor: EPYC 7443 rivals Xeon Platinum 8362; Ryzen 9 7945HX rivals Core i9-14900HX.