Core i7-12700K vs EPYC 9255

CPU

GPU

Core i7-12700K

12 Cores20 Thrd125 WWMax: 5 GHz2021

Popular choices:

•••••••••

EPYC 9255

24 Cores48 Thrd200 WWMax: 4.8 GHz2024

Popular choices:

••i7-12700K•••••••

Performance Spectrum - CPU

Core i7-12700K

12 / 20

34,347

0.0%

75,809

+120.7%

Ryzen 7 8840HX

Ryzen 9 7900X3D

Ryzen 9 7945HX3D

Ryzen Threadripper PRO 5965WX

Ryzen Threadripper 9960X

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Ryzen Threadripper 7980X

About PassMark

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 i7-12700K

2021

Why buy it

✅Costs $2,086 less on MSRP ($409 MSRP vs $2,495 MSRP).
✅Delivers 176.4% more PassMark for each dollar spent, at 84.0 vs 30.4 PassMark/$ ($409 MSRP vs $2,495 MSRP).
✅Draws 125W instead of 200W, a 75W reduction.
✅Integrated graphics onboard with Intel UHD Graphics 770, while EPYC 9255 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9255 across 4 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 75,809).
❌Less compelling for workstation-style loads than EPYC 9255, which brings 24 cores / 48 threads and 128 PCIe lanes.

EPYC 9255

2024

Why buy it

✅Better for gaming: +12.9% higher average FPS across 4 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads, plus 128 PCIe lanes vs 20.
✅540% more PCIe lanes (128 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 30.4 vs 84.0 PassMark/$ ($2,495 MSRP vs $409 MSRP).
❌60% higher power demand at 200W vs 125W.
❌No integrated graphics, while Core i7-12700K can still boot and troubleshoot without a discrete GPU.

Core i7-12700K

2021

EPYC 9255

2024

Why buy it

✅Costs $2,086 less on MSRP ($409 MSRP vs $2,495 MSRP).
✅Delivers 176.4% more PassMark for each dollar spent, at 84.0 vs 30.4 PassMark/$ ($409 MSRP vs $2,495 MSRP).
✅Draws 125W instead of 200W, a 75W reduction.
✅Integrated graphics onboard with Intel UHD Graphics 770, while EPYC 9255 needs a discrete GPU.

Why buy it

✅Better for gaming: +12.9% higher average FPS across 4 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads, plus 128 PCIe lanes vs 20.
✅540% more PCIe lanes (128 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9255 across 4 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 75,809).
❌Less compelling for workstation-style loads than EPYC 9255, which brings 24 cores / 48 threads and 128 PCIe lanes.

Trade-offs

❌Lower PassMark per dollar, at 30.4 vs 84.0 PassMark/$ ($2,495 MSRP vs $409 MSRP).
❌60% higher power demand at 200W vs 125W.
❌No integrated graphics, while Core i7-12700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is EPYC 9255 better than Core i7-12700K?

Not in a simple one-size-fits-all way. EPYC 9255 makes more sense for workstation-style multi-core throughput, while Core i7-12700K is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, EPYC 9255 is the better pick here. According to our tests, it delivers 12.9% more average FPS across 4 shared CPU game tests. It also has a big cache advantage at 128 MB vs 25 MB.

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

For streaming, content creation, and heavier multitasking, EPYC 9255 is the better fit. You are getting 120.7% better PassMark, backed by 24 cores and 48 threads. It also carries the larger cache pool with 412% larger total L3 cache (128 MB vs 25 MB).

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

EPYC 9255 is still the faster CPU overall, but Core i7-12700K makes more sense if price matters more than absolute performance. EPYC 9255 is 510.0% more expensive on MSRP at $2,495 MSRP versus $409 MSRP, and it gives you a 12.9% average FPS lead across 4 shared CPU game tests in our data. Core i7-12700K is also 176.4% better value on MSRP (84.0 vs 30.4 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

Which one is more future-proof for 2026 and beyond?

EPYC 9255 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2021), 3D V-Cache and a much larger 128 MB L3 cache instead of 25 MB, more multi-core headroom with 24 cores / 48 threads instead of 12/20, 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.

Core i7-12700K Benchmark Check

EPYC 9255 Benchmark Check

Path of Exile 2

Preset	Core i7-12700K	EPYC 9255
1080p
low	314 FPS	303 FPS
medium	295 FPS	280 FPS
high	246 FPS	231 FPS
ultra	193 FPS	195 FPS
1440p
low	269 FPS	268 FPS
medium	225 FPS	223 FPS
high	182 FPS	172 FPS
ultra	145 FPS	152 FPS
4K
low	170 FPS	186 FPS
medium	142 FPS	154 FPS
high	109 FPS	117 FPS
ultra	96 FPS	105 FPS

Open Core i7-12700K Open EPYC 9255

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-12700K	EPYC 9255
1080p
low	630 FPS	717 FPS
medium	533 FPS	614 FPS
high	450 FPS	485 FPS
ultra	410 FPS	421 FPS
1440p
low	536 FPS	573 FPS
medium	475 FPS	507 FPS
high	403 FPS	419 FPS
ultra	349 FPS	341 FPS
4K
low	312 FPS	335 FPS
medium	280 FPS	298 FPS
high	266 FPS	270 FPS
ultra	234 FPS	239 FPS

Open Core i7-12700K Open EPYC 9255

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-12700K	EPYC 9255
1080p
low	797 FPS	850 FPS
medium	633 FPS	691 FPS
high	556 FPS	625 FPS
ultra	472 FPS	530 FPS
1440p
low	704 FPS	677 FPS
medium	565 FPS	548 FPS
high	490 FPS	484 FPS
ultra	422 FPS	408 FPS
4K
low	510 FPS	483 FPS
medium	425 FPS	399 FPS
high	381 FPS	355 FPS
ultra	321 FPS	293 FPS

Open Core i7-12700K Open EPYC 9255

League of Legends

League of Legends

Valorant

Preset	Core i7-12700K	EPYC 9255
1080p
low	859 FPS	1083 FPS
medium	802 FPS	982 FPS
high	699 FPS	862 FPS
ultra	628 FPS	777 FPS
1440p
low	760 FPS	859 FPS
medium	678 FPS	761 FPS
high	590 FPS	668 FPS
ultra	519 FPS	582 FPS
4K
low	535 FPS	627 FPS
medium	488 FPS	562 FPS
high	437 FPS	500 FPS
ultra	384 FPS	434 FPS

Open Core i7-12700K Open EPYC 9255

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-12700K and EPYC 9255

Core i7-12700K

The Core i7-12700K is manufactured by Intel. It was released in 4 November 2021 (4 years ago). It is based on the Alder Lake, Golden Cove, Gracemont (2021) architecture. It features 12 cores and 20 threads. Base frequency is 3.6 GHz, with boost up to 5 GHz. L3 cache: 25 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: LGA1700. Thermal design power (TDP): 125 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 34,347 points. Launch price was $409.

EPYC 9255

The EPYC 9255 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 24 cores and 48 threads. Base frequency is 3.25 GHz, with boost up to 4.8 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 200 Watt. Memory support: DDR5. Passmark benchmark score: 75,809 points. Launch price was $2,495.

⚡

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the EPYC 9255 offers 24 cores / 48 threads — the EPYC 9255 has 12 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 4.8 GHz on the EPYC 9255 — a 4.1% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 3.25 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the EPYC 9255 uses Turin (2024) (4 nm). In PassMark, the Core i7-12700K scores 34,347 against the EPYC 9255's 75,809 — a 75.3% lead for the EPYC 9255. L3 cache: 25 MB (total) on the Core i7-12700K vs 128 MB (total) on the EPYC 9255.

Feature	Core i7-12700K	EPYC 9255
Cores / Threads	12 / 20	24 / 48+100%
Boost Clock	5 GHz+4%	4.8 GHz
Base Clock	3.6 GHz+11%	3.25 GHz
L3 Cache	25 MB (total)	128 MB (total)+412%
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	10 nm	4 nm-60%
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Turin (2024)
PassMark	34,347	75,809+121%

🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the EPYC 9255 uses SP5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to 4800 memory speed. The EPYC 9255 supports up to 6144 of RAM compared to 128 — 191.8% more capacity for professional workloads. Memory channels: 2 (Core i7-12700K) vs 12 (EPYC 9255). PCIe lanes: 20 (Core i7-12700K) vs 128 (EPYC 9255) — the EPYC 9255 offers 108 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z690,B660 (Core i7-12700K) and SP5 (EPYC 9255).

Feature	Core i7-12700K	EPYC 9255
Socket	LGA1700	SP5
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	4800	4800
Max RAM Capacity	128	6144+4700%
RAM Channels	2	12+500%
ECC Support	Yes	Yes
PCIe Lanes	20	128+540%

🔧

Advanced Features

Only the Core i7-12700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the EPYC 9255 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-12700K) vs VT-x, VT-d, SEV-SNP (EPYC 9255). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the EPYC 9255 requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X; EPYC 9255 rivals Xeon Platinum 8480+.

Feature	Core i7-12700K	EPYC 9255
Integrated GPU	Yes	No
IGPU Model	Intel UHD Graphics 770	None
Unlocked	Yes	No
AVX-512	No	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d, SEV-SNP

💰

Value Analysis

The Core i7-12700K launched at $409 MSRP, while the EPYC 9255 debuted at $2495. On MSRP ($409 vs $2495), the Core i7-12700K is $2086 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-12700K delivers 84.0 pts/$ vs 30.4 pts/$ for the EPYC 9255 — making the Core i7-12700K the 93.7% better value option.