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 $630 less on MSRP ($409 MSRP vs $1,039 MSRP).
✅Delivers 135.1% more PassMark for each dollar spent, at 84.0 vs 35.7 PassMark/$ ($409 MSRP vs $1,039 MSRP).
✅Draws 125W instead of 200W, a 75W reduction.
✅Integrated graphics onboard with Intel UHD Graphics 770, while Xeon w5-2455X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w5-2455X across 4 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 37,109).
❌Smaller total L3 cache (25 MB vs 30 MB).
❌Less compelling for workstation-style loads than Xeon w5-2455X, which brings 12 cores / 24 threads and 64 PCIe lanes.

Xeon w5-2455X

2023

Why buy it

✅Better for gaming: +22.3% higher average FPS across 4 shared CPU benchmark tests.
✅+20% larger total L3 cache (30 MB vs 25 MB).
✅Better for workstations and heavier parallel workloads: 12 cores / 24 threads, plus 64 PCIe lanes vs 20.
✅220% more PCIe lanes (64 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 35.7 vs 84.0 PassMark/$ ($1,039 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

Xeon w5-2455X

2023

Why buy it

✅Costs $630 less on MSRP ($409 MSRP vs $1,039 MSRP).
✅Delivers 135.1% more PassMark for each dollar spent, at 84.0 vs 35.7 PassMark/$ ($409 MSRP vs $1,039 MSRP).
✅Draws 125W instead of 200W, a 75W reduction.
✅Integrated graphics onboard with Intel UHD Graphics 770, while Xeon w5-2455X needs a discrete GPU.

Why buy it

✅Better for gaming: +22.3% higher average FPS across 4 shared CPU benchmark tests.
✅+20% larger total L3 cache (30 MB vs 25 MB).
✅Better for workstations and heavier parallel workloads: 12 cores / 24 threads, plus 64 PCIe lanes vs 20.
✅220% more PCIe lanes (64 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w5-2455X across 4 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 37,109).
❌Smaller total L3 cache (25 MB vs 30 MB).
❌Less compelling for workstation-style loads than Xeon w5-2455X, which brings 12 cores / 24 threads and 64 PCIe lanes.

Trade-offs

❌Lower PassMark per dollar, at 35.7 vs 84.0 PassMark/$ ($1,039 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 Xeon w5-2455X better than Core i7-12700K?

Not in a simple one-size-fits-all way. Xeon w5-2455X 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, Xeon w5-2455X is the better pick here. According to our tests, it delivers 22.3% more average FPS across 4 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon w5-2455X is the better fit. You are getting 8% better PassMark, backed by 12 cores and 24 threads. It also carries the larger cache pool with 20% larger total L3 cache (30 MB vs 25 MB).

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

Xeon w5-2455X is still the faster CPU overall, but Core i7-12700K makes more sense if price matters more than absolute performance. Xeon w5-2455X is 154.0% more expensive on MSRP at $1,039 MSRP versus $409 MSRP, and it gives you a 22.3% average FPS lead across 4 shared CPU game tests in our data. Core i7-12700K is also 135.1% better value on MSRP (84.0 vs 35.7 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Xeon w5-2455X is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), 20% larger total L3 cache (30 MB vs 25 MB), more multi-core headroom with 12 cores / 24 threads instead of 12/20, and AVX-512 support for heavier modern compute workloads. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

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

Xeon w5-2455X Benchmark Check

Path of Exile 2

Preset	Core i7-12700K	Xeon w5-2455X
1080p
low	314 FPS	186 FPS
medium	295 FPS	155 FPS
high	246 FPS	129 FPS
ultra	193 FPS	106 FPS
1440p
low	269 FPS	151 FPS
medium	225 FPS	121 FPS
high	182 FPS	98 FPS
ultra	145 FPS	81 FPS
4K
low	170 FPS	83 FPS
medium	142 FPS	71 FPS
high	109 FPS	58 FPS
ultra	96 FPS	45 FPS

Open Core i7-12700K Open Xeon w5-2455X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-12700K	Xeon w5-2455X
1080p
low	630 FPS	589 FPS
medium	533 FPS	493 FPS
high	450 FPS	404 FPS
ultra	410 FPS	363 FPS
1440p
low	536 FPS	500 FPS
medium	475 FPS	435 FPS
high	403 FPS	366 FPS
ultra	349 FPS	314 FPS
4K
low	312 FPS	311 FPS
medium	280 FPS	272 FPS
high	266 FPS	249 FPS
ultra	234 FPS	220 FPS

Open Core i7-12700K Open Xeon w5-2455X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-12700K	Xeon w5-2455X
1080p
low	797 FPS	928 FPS
medium	633 FPS	928 FPS
high	556 FPS	928 FPS
ultra	472 FPS	861 FPS
1440p
low	704 FPS	869 FPS
medium	565 FPS	765 FPS
high	490 FPS	726 FPS
ultra	422 FPS	651 FPS
4K
low	510 FPS	560 FPS
medium	425 FPS	459 FPS
high	381 FPS	417 FPS
ultra	321 FPS	338 FPS

Open Core i7-12700K Open Xeon w5-2455X

League of Legends

League of Legends

Valorant

Preset	Core i7-12700K	Xeon w5-2455X
1080p
low	859 FPS	928 FPS
medium	802 FPS	928 FPS
high	699 FPS	865 FPS
ultra	628 FPS	753 FPS
1440p
low	760 FPS	915 FPS
medium	678 FPS	784 FPS
high	590 FPS	685 FPS
ultra	519 FPS	590 FPS
4K
low	535 FPS	634 FPS
medium	488 FPS	552 FPS
high	437 FPS	495 FPS
ultra	384 FPS	428 FPS

Open Core i7-12700K Open Xeon w5-2455X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-12700K and Xeon w5-2455X

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.

Xeon w5-2455X

The Xeon w5-2455X is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 12 cores and 24 threads. Base frequency is 3.2 GHz, with boost up to 4.6 GHz. L3 cache: 30 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 200 Watt. Memory support: DDR5-4800. Passmark benchmark score: 37,109 points. Launch price was $1,039.

⚡

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, matching the Xeon w5-2455X's 12 cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 4.6 GHz on the Xeon w5-2455X — a 8.3% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 3.2 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Xeon w5-2455X uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Core i7-12700K scores 34,347 against the Xeon w5-2455X's 37,109 — a 7.7% lead for the Xeon w5-2455X. L3 cache: 25 MB (total) on the Core i7-12700K vs 30 MB on the Xeon w5-2455X.

Feature	Core i7-12700K	Xeon w5-2455X
Cores / Threads	12 / 20	12 / 24
Boost Clock	5 GHz+9%	4.6 GHz
Base Clock	3.6 GHz+12%	3.2 GHz
L3 Cache	25 MB (total)	30 MB+20%
L2 Cache	1.25 MB (per core)	2 MB (per core)+60%
Process	10 nm	Intel 7 nm-30%
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Sapphire Rapids (2023−2024)
PassMark	34,347	37,109+8%

🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Xeon w5-2455X uses LGA4677 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to 4800 memory speed. The Xeon w5-2455X supports up to 2048 of RAM compared to 128 — 176.5% more capacity for professional workloads. Memory channels: 2 (Core i7-12700K) vs 4 (Xeon w5-2455X). PCIe lanes: 20 (Core i7-12700K) vs 64 (Xeon w5-2455X) — the Xeon w5-2455X offers 44 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z690,B660 (Core i7-12700K) and W790 (Xeon w5-2455X).

Feature	Core i7-12700K	Xeon w5-2455X
Socket	LGA1700	LGA4677
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	4800	4800
Max RAM Capacity	128	2048+1500%
RAM Channels	2	4+100%
ECC Support	Yes	Yes
PCIe Lanes	20	64+220%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Xeon w5-2455X supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Xeon w5-2455X requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X; Xeon w5-2455X rivals Threadripper 7960X.

Feature	Core i7-12700K	Xeon w5-2455X
Integrated GPU	Yes	No
IGPU Model	Intel UHD Graphics 770	None
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d

💰

Value Analysis

The Core i7-12700K launched at $409 MSRP, while the Xeon w5-2455X debuted at $1039. On MSRP ($409 vs $1039), the Core i7-12700K is $630 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-12700K delivers 84.0 pts/$ vs 35.7 pts/$ for the Xeon w5-2455X — making the Core i7-12700K the 80.6% better value option.