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 7742

2019

Why buy it

✅+4.4% higher PassMark.
✅+100% larger total L3 cache (256 MB vs 128 MB).
✅33.3% more PCIe lanes (128 vs 96) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 8434P across 4 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 10.0 vs 43.8 PassMark/$ ($6,950 MSRP vs $1,517 MSRP).
❌Older platform position on TR4 with DDR4, while EPYC 8434P moves to SP6 and DDR5.

EPYC 8434P

2023

Why buy it

✅Better for gaming: +28.3% higher average FPS across 4 shared CPU benchmark tests.
✅Costs $5,433 less on MSRP ($1,517 MSRP vs $6,950 MSRP).
✅Delivers 338.6% more PassMark for each dollar spent, at 43.8 vs 10.0 PassMark/$ ($1,517 MSRP vs $6,950 MSRP).
✅Draws 200W instead of 225W, a 25W reduction.
✅Newer platform on SP6 with DDR5 support instead of TR4 and DDR4.

Trade-offs

❌Lower PassMark (66,490 vs 69,448).
❌Smaller total L3 cache (128 MB vs 256 MB).

EPYC 7742

2019

EPYC 8434P

2023

Why buy it

✅+4.4% higher PassMark.
✅+100% larger total L3 cache (256 MB vs 128 MB).
✅33.3% more PCIe lanes (128 vs 96) for storage and expansion-heavy builds.

Why buy it

✅Better for gaming: +28.3% higher average FPS across 4 shared CPU benchmark tests.
✅Costs $5,433 less on MSRP ($1,517 MSRP vs $6,950 MSRP).
✅Delivers 338.6% more PassMark for each dollar spent, at 43.8 vs 10.0 PassMark/$ ($1,517 MSRP vs $6,950 MSRP).
✅Draws 200W instead of 225W, a 25W reduction.
✅Newer platform on SP6 with DDR5 support instead of TR4 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 8434P across 4 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 10.0 vs 43.8 PassMark/$ ($6,950 MSRP vs $1,517 MSRP).
❌Older platform position on TR4 with DDR4, while EPYC 8434P moves to SP6 and DDR5.

Trade-offs

❌Lower PassMark (66,490 vs 69,448).
❌Smaller total L3 cache (128 MB vs 256 MB).

Quick Answers

So, is EPYC 8434P better than EPYC 7742?

It depends on what matters more to you. For gaming, EPYC 8434P is ahead with a 28.3% average FPS lead across 4 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 7742 pulls ahead with 4.4% better PassMark. EPYC 7742 also has the bigger cache pool with 100% larger total L3 cache (256 MB vs 128 MB).

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

For streaming, content creation, and heavier multitasking, EPYC 7742 is the better fit. You are getting 4.4% better PassMark, backed by 64 cores and 128 threads. It also carries the larger cache pool with 100% larger total L3 cache (256 MB vs 128 MB).

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

EPYC 8434P is the smarter buy today. EPYC 8434P is $5,433 cheaper on MSRP at $1,517 MSRP versus $6,950 MSRP, and it gives you a 28.3% average FPS lead across 4 shared CPU game tests in our data. The trade-off is that EPYC 7742 is still stronger for heavier multi-core work with 4.4% better PassMark. It is also 338.6% better value on MSRP (43.8 vs 10.0 PassMark/$), 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?

EPYC 8434P is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2019), a healthier platform with SP6 and DDR5 instead of TR4, 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 7742 Benchmark Check

EPYC 8434P Benchmark Check

Path of Exile 2

Preset	EPYC 7742	EPYC 8434P
1080p
low	192 FPS	159 FPS
medium	172 FPS	131 FPS
high	138 FPS	110 FPS
ultra	110 FPS	87 FPS
1440p
low	157 FPS	142 FPS
medium	132 FPS	114 FPS
high	101 FPS	90 FPS
ultra	82 FPS	72 FPS
4K
low	72 FPS	68 FPS
medium	65 FPS	58 FPS
high	50 FPS	45 FPS
ultra	40 FPS	37 FPS

Open EPYC 7742 Open EPYC 8434P

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 7742	EPYC 8434P
1080p
low	247 FPS	419 FPS
medium	221 FPS	369 FPS
high	183 FPS	300 FPS
ultra	148 FPS	236 FPS
1440p
low	202 FPS	344 FPS
medium	186 FPS	311 FPS
high	158 FPS	260 FPS
ultra	124 FPS	199 FPS
4K
low	126 FPS	212 FPS
medium	118 FPS	195 FPS
high	103 FPS	163 FPS
ultra	84 FPS	132 FPS

Open EPYC 7742 Open EPYC 8434P

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 7742	EPYC 8434P
1080p
low	629 FPS	860 FPS
medium	536 FPS	786 FPS
high	486 FPS	760 FPS
ultra	415 FPS	682 FPS
1440p
low	524 FPS	663 FPS
medium	446 FPS	587 FPS
high	394 FPS	558 FPS
ultra	338 FPS	498 FPS
4K
low	389 FPS	435 FPS
medium	312 FPS	344 FPS
high	274 FPS	307 FPS
ultra	224 FPS	250 FPS

Open EPYC 7742 Open EPYC 8434P

League of Legends

League of Legends

Valorant

Preset	EPYC 7742	EPYC 8434P
1080p
low	906 FPS	1023 FPS
medium	828 FPS	913 FPS
high	713 FPS	772 FPS
ultra	618 FPS	651 FPS
1440p
low	711 FPS	833 FPS
medium	623 FPS	712 FPS
high	534 FPS	598 FPS
ultra	454 FPS	492 FPS
4K
low	503 FPS	600 FPS
medium	454 FPS	524 FPS
high	401 FPS	451 FPS
ultra	346 FPS	376 FPS

Open EPYC 7742 Open EPYC 8434P

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 7742 and EPYC 8434P

EPYC 7742

The EPYC 7742 is manufactured by AMD. It was released in 7 August 2019 (6 years ago). It is based on the Zen 2 (2017−2020) architecture. It features 64 cores and 128 threads. Base frequency is 2.25 GHz, with boost up to 3.4 GHz. L3 cache: 256 MB (total). L2 cache: 512K (per core). Built on 7 nm, 14 nm process technology. Socket: TR4. Thermal design power (TDP): 225 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 69,448 points. Launch price was $6,950.

EPYC 8434P

The EPYC 8434P is manufactured by AMD. It was released in 18 September 2023 (2 years ago). It is based on the Siena (2023−2024) architecture. It features 48 cores and 96 threads. Base frequency is 2.5 GHz, with boost up to 3.1 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: SP6. Thermal design power (TDP): 200 Watt. Memory support: DDR5. Passmark benchmark score: 66,490 points. Launch price was $2,700.

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Processing Power

The EPYC 7742 packs 64 cores / 128 threads, while the EPYC 8434P offers 48 cores / 96 threads — the EPYC 7742 has 16 more cores. Boost clocks reach 3.4 GHz on the EPYC 7742 versus 3.1 GHz on the EPYC 8434P — a 9.2% clock advantage for the EPYC 7742 (base: 2.25 GHz vs 2.5 GHz). The EPYC 7742 uses the Zen 2 (2017−2020) architecture (7 nm, 14 nm), while the EPYC 8434P uses Siena (2023−2024) (5 nm). In PassMark, the EPYC 7742 scores 69,448 against the EPYC 8434P's 66,490 — a 4.4% lead for the EPYC 7742. L3 cache: 256 MB (total) on the EPYC 7742 vs 128 MB (total) on the EPYC 8434P.

Feature	EPYC 7742	EPYC 8434P
Cores / Threads	64 / 128+33%	48 / 96
Boost Clock	3.4 GHz+10%	3.1 GHz
Base Clock	2.25 GHz	2.5 GHz+11%
L3 Cache	256 MB (total)+100%	128 MB (total)
L2 Cache	512K (per core)	1 MB (per core)+100%
Process	7 nm, 14 nm	5 nm-29%
Architecture	Zen 2 (2017−2020)	Siena (2023−2024)
PassMark	69,448+4%	66,490

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Memory & Platform

The EPYC 7742 uses the TR4 socket (PCIe 4.0), while the EPYC 8434P uses SP6 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7742 versus 4800 on the EPYC 8434P — the EPYC 8434P supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7742 supports up to 4096 of RAM compared to 1152 — 112.2% more capacity for professional workloads. Memory channels: 8 (EPYC 7742) vs 6 (EPYC 8434P). PCIe lanes: 128 (EPYC 7742) vs 96 (EPYC 8434P) — the EPYC 7742 offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7742) and SP6 (EPYC 8434P).

Feature	EPYC 7742	EPYC 8434P
Socket	TR4	SP6
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	3200	4800+50%
Max RAM Capacity	4096+256%	1152
RAM Channels	8+33%	6
ECC Support	Yes	Yes
PCIe Lanes	128+33%	96

🔧

Advanced Features

Neither processor supports overclocking. Only the EPYC 8434P supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Direct competitor: EPYC 7742 rivals Xeon Platinum 8280; EPYC 8434P rivals Xeon Platinum 8452Y.

Feature	EPYC 7742	EPYC 8434P
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	No	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d

💰

Value Analysis

The EPYC 7742 launched at $6950 MSRP, while the EPYC 8434P debuted at $1517. On MSRP ($6950 vs $1517), the EPYC 8434P is $5433 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7742 delivers 10.0 pts/$ vs 43.8 pts/$ for the EPYC 8434P — making the EPYC 8434P the 125.7% better value option.