Core i7-9700K vs EPYC 7451

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 i7-9700K

2018

Why buy it

✅Better for gaming: +5.9% higher average FPS across 47 shared CPU benchmark tests.
✅Draws 95W instead of 180W, a 85W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while EPYC 7451 needs a discrete GPU.

Trade-offs

❌Lower PassMark (14,397 vs 26,639).
❌Smaller total L3 cache (12 MB vs 64 MB).
❌Less compelling for workstation-style loads than EPYC 7451, which brings 24 cores / 48 threads.
❌Launch MSRP is still $385 MSRP, while EPYC 7451 mostly shows up through inconsistent older-market listings.

EPYC 7451

2017

Why buy it

✅+85% higher PassMark.
✅+433.3% larger total L3 cache (64 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-9700K across 47 shared CPU benchmark tests.
❌89.5% higher power demand at 180W vs 95W.
❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Core i7-9700K

2018

EPYC 7451

2017

Why buy it

✅Better for gaming: +5.9% higher average FPS across 47 shared CPU benchmark tests.
✅Draws 95W instead of 180W, a 85W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while EPYC 7451 needs a discrete GPU.

Why buy it

✅+85% higher PassMark.
✅+433.3% larger total L3 cache (64 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads.

Trade-offs

❌Lower PassMark (14,397 vs 26,639).
❌Smaller total L3 cache (12 MB vs 64 MB).
❌Less compelling for workstation-style loads than EPYC 7451, which brings 24 cores / 48 threads.
❌Launch MSRP is still $385 MSRP, while EPYC 7451 mostly shows up through inconsistent older-market listings.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-9700K across 47 shared CPU benchmark tests.
❌89.5% higher power demand at 180W vs 95W.
❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i7-9700K better than EPYC 7451?

Not in a simple one-size-fits-all way. EPYC 7451 makes more sense for workstation-style multi-core throughput, while Core i7-9700K 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 7451 is the better fit. You are getting 85% better PassMark, backed by 24 cores and 48 threads. It also carries the larger cache pool with 433.3% larger total L3 cache (64 MB vs 12 MB).

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

Core i7-9700K is the smarter buy today. Core i7-9700K is at an unclear MSRP at $385 MSRP versus unclear MSRP, and it gives you a 5.9% average FPS lead across 47 shared CPU game tests in our data. The trade-off is that EPYC 7451 is still stronger for heavier multi-core work with 85% better PassMark. It is also 100.0% better value on MSRP (37.4 vs 0.0 PassMark/$), 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?

Core i7-9700K is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2017). That makes it the safer long-term pick.

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 i7-9700K Benchmark Check

EPYC 7451 Benchmark Check

Path of Exile 2

Preset	Core i7-9700K	EPYC 7451
1080p
low	308 FPS	187 FPS
medium	278 FPS	165 FPS
high	231 FPS	132 FPS
ultra	182 FPS	105 FPS
1440p
low	270 FPS	153 FPS
medium	221 FPS	127 FPS
high	178 FPS	97 FPS
ultra	143 FPS	78 FPS
4K
low	170 FPS	71 FPS
medium	140 FPS	63 FPS
high	108 FPS	48 FPS
ultra	95 FPS	39 FPS

Open Core i7-9700K Open EPYC 7451

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-9700K	EPYC 7451
1080p
low	360 FPS	355 FPS
medium	321 FPS	321 FPS
high	291 FPS	271 FPS
ultra	259 FPS	219 FPS
1440p
low	324 FPS	306 FPS
medium	282 FPS	280 FPS
high	258 FPS	239 FPS
ultra	225 FPS	187 FPS
4K
low	249 FPS	191 FPS
medium	221 FPS	176 FPS
high	208 FPS	152 FPS
ultra	179 FPS	122 FPS

Open Core i7-9700K Open EPYC 7451

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-9700K	EPYC 7451
1080p
low	360 FPS	620 FPS
medium	360 FPS	518 FPS
high	360 FPS	466 FPS
ultra	360 FPS	399 FPS
1440p
low	360 FPS	517 FPS
medium	360 FPS	432 FPS
high	360 FPS	378 FPS
ultra	360 FPS	325 FPS
4K
low	360 FPS	383 FPS
medium	360 FPS	308 FPS
high	360 FPS	270 FPS
ultra	318 FPS	220 FPS

Open Core i7-9700K Open EPYC 7451

League of Legends

League of Legends

Valorant

Preset	Core i7-9700K	EPYC 7451
1080p
low	360 FPS	666 FPS
medium	360 FPS	666 FPS
high	360 FPS	659 FPS
ultra	360 FPS	571 FPS
1440p
low	360 FPS	666 FPS
medium	360 FPS	587 FPS
high	360 FPS	503 FPS
ultra	360 FPS	426 FPS
4K
low	360 FPS	476 FPS
medium	360 FPS	429 FPS
high	360 FPS	378 FPS
ultra	360 FPS	324 FPS

Open Core i7-9700K Open EPYC 7451

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-9700K and EPYC 7451

Core i7-9700K

The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.

EPYC 7451

The EPYC 7451 is manufactured by AMD. It was released in 29 June 2017 (8 years ago). It is based on the Naples (2017−2018) architecture. It features 24 cores and 48 threads. Base frequency is 2.3 GHz, with boost up to 3.2 GHz. L3 cache: 64 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 180 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 26,639 points. Launch price was $2,400.

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Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the EPYC 7451 offers 24 cores / 48 threads — the EPYC 7451 has 16 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 3.2 GHz on the EPYC 7451 — a 42% clock advantage for the Core i7-9700K (base: 3.6 GHz vs 2.3 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the EPYC 7451 uses Naples (2017−2018) (14 nm). In PassMark, the Core i7-9700K scores 14,397 against the EPYC 7451's 26,639 — a 59.7% lead for the EPYC 7451. L3 cache: 12 MB (total) on the Core i7-9700K vs 64 MB (total) on the EPYC 7451.

Feature	Core i7-9700K	EPYC 7451
Cores / Threads	8 / 8	24 / 48+200%
Boost Clock	4.9 GHz+53%	3.2 GHz
Base Clock	3.6 GHz+57%	2.3 GHz
L3 Cache	12 MB (total)	64 MB (total)+433%
L2 Cache	256K (per core)	512K (per core)+100%
Process	14 nm	14 nm
Architecture	Coffee Lake-R (2018−2019)	Naples (2017−2018)
PassMark	14,397	26,639+85%

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Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the EPYC 7451 uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i7-9700K	EPYC 7451
Socket	LGA1151	TR4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i7-9700K) / not specified (EPYC 7451). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the EPYC 7451 requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.