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.

Core i9-12900K vs Xeon Gold 6258R FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i9-12900K vs Xeon Gold 6258R: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i9-12900K

2021

Why buy it

✅Better for gaming: +9.7% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $3,361 less on MSRP ($589 MSRP vs $3,950 MSRP).
✅Delivers 582.9% more PassMark for each dollar spent, at 69.9 vs 10.2 PassMark/$ ($589 MSRP vs $3,950 MSRP).
✅Draws 125W instead of 205W, a 80W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA3647 and DDR4.

Trade-offs

❌Smaller total L3 cache (30 MB vs 39 MB).
❌Less compelling for workstation-style loads than Xeon Gold 6258R, which brings 28 cores / 56 threads and 48 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon Gold 6258R

2020

Why buy it

✅+28.3% larger total L3 cache (39 MB vs 30 MB).
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 48 PCIe lanes vs 20.
✅140% more PCIe lanes (48 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-12900K across 50 shared CPU benchmark tests.
❌Lower PassMark (40,442 vs 41,180).
❌Lower PassMark per dollar, at 10.2 vs 69.9 PassMark/$ ($3,950 MSRP vs $589 MSRP).
❌64% higher power demand at 205W vs 125W.
❌Older platform position on LGA3647 with DDR4, while Core i9-12900K moves to LGA1700 and DDR5.

Quick Answers

So, is Core i9-12900K better than Xeon Gold 6258R?

Not really, because they are built for different jobs. Xeon Gold 6258R makes more sense for workstation-style multi-core throughput, while Core i9-12900K is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Core i9-12900K is the better pick. According to our tests, it delivers 9.7% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i9-12900K is the stronger fit. You are getting 1.8% better PassMark, backed by 16 cores and 24 threads.

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

Core i9-12900K is the better buy right now. Core i9-12900K comes in $3,361 cheaper on MSRP at $589 MSRP versus $3,950 MSRP, and it still gives you a 9.7% average FPS lead across 50 shared CPU game tests in our data. It is also 582.9% better value on MSRP (69.9 vs 10.2 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i9-12900K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2020), a healthier platform with LGA1700 and DDR5 instead of LGA3647, and more multi-core headroom with 16 cores / 24 threads instead of 28/56. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-12900K vs Xeon Gold 6258R Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i9-12900K

The Core i9-12900K 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 16 cores and 24 threads. Base frequency is 3.2 GHz, with boost up to 5.2 GHz. L3 cache: 30 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: 41,180 points. Launch price was $589.

Xeon Gold 6258R

The Xeon Gold 6258R is manufactured by Intel. It was released in 24 February 2020 (5 years ago). It is based on the Cascade Lake (2019−2020) architecture. It features 28 cores and 56 threads. Base frequency is 2.7 GHz, with boost up to 4 GHz. L3 cache: 38.5 MB. L2 cache: 28 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 205 Watt. Memory support: DDR4-2933. Passmark benchmark score: 40,442 points. Launch price was $3,950.

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Processing Power

The Core i9-12900K packs 16 cores / 24 threads, while the Xeon Gold 6258R offers 28 cores / 56 threads — the Xeon Gold 6258R has 12 more cores. Boost clocks reach 5.2 GHz on the Core i9-12900K versus 4 GHz on the Xeon Gold 6258R — a 26.1% clock advantage for the Core i9-12900K (base: 3.2 GHz vs 2.7 GHz). The Core i9-12900K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Xeon Gold 6258R uses Cascade Lake (2019−2020) (14 nm). In PassMark, the Core i9-12900K scores 41,180 against the Xeon Gold 6258R's 40,442 — a 1.8% lead for the Core i9-12900K. L3 cache: 30 MB (total) on the Core i9-12900K vs 38.5 MB on the Xeon Gold 6258R.

Feature	Core i9-12900K	Xeon Gold 6258R
Cores / Threads	16 / 24	28 / 56+75%
Boost Clock	5.2 GHz+30%	4 GHz
Base Clock	3.2 GHz+19%	2.7 GHz
L3 Cache	30 MB (total)	38.5 MB+28%
L2 Cache	1.25 MB (per core)	28 MB+2140%
Process	10 nm-29%	14 nm
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Cascade Lake (2019−2020)
PassMark	41,180+2%	40,442

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Memory & Platform

The Core i9-12900K uses the LGA1700 socket (PCIe 5.0), while the Xeon Gold 6258R uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the Core i9-12900K versus 2933 on the Xeon Gold 6258R — the Core i9-12900K supports 63.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6258R supports up to 1024 GB of RAM compared to 128 GB — 700% more capacity for professional workloads. Memory channels: 2 (Core i9-12900K) vs 6 (Xeon Gold 6258R). PCIe lanes: 20 (Core i9-12900K) vs 48 (Xeon Gold 6258R) — the Xeon Gold 6258R offers 28 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 600 series,Intel 700 series (Core i9-12900K) and LGA3647 (Xeon Gold 6258R).

Feature	Core i9-12900K	Xeon Gold 6258R
Socket	LGA1700	LGA3647
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	DDR5-4800+64%	2933
Max RAM Capacity	128 GB	1024 GB+700%
RAM Channels	2	6+200%
ECC Support	Yes	Yes
PCIe Lanes	20	48+140%

🔧

Advanced Features

Virtualization: not specified (Core i9-12900K) / VT-x, VT-d (Xeon Gold 6258R). The Core i9-12900K includes integrated graphics (Intel UHD Graphics 770), while the Xeon Gold 6258R requires a dedicated GPU. Direct competitor: Xeon Gold 6258R rivals EPYC 7502.

Feature	Core i9-12900K	Xeon Gold 6258R
Integrated GPU	Yes	No
IGPU Model	Intel UHD Graphics 770	None
Unlocked	—	No
AVX-512	—	Yes
Virtualization	—	VT-x, VT-d

💰

Value Analysis

At launch, the Core i9-12900K was priced at $589, while the Xeon Gold 6258R came in at $3950. On launch pricing ($589 vs $3950), Core i9-12900K was $3361 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-12900K delivers 69.9 pts/$ vs 10.2 pts/$ for the Xeon Gold 6258R — making the Core i9-12900K the 148.9% better value option.

Feature	Core i9-12900K	Xeon Gold 6258R
MSRP	$589-85%	$3950
Performance per Dollar	69.9+585%	10.2
Release Date	2021	2020

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