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 i7-9700K vs Xeon Gold 6138T 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 i7-9700K vs Xeon Gold 6138T: Pros, Cons & Final Verdict

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

Core i7-9700K

2018

Why buy it

✅Better for gaming: +23.7% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $2,357 less on MSRP ($385 MSRP vs $2,742 MSRP).
✅Delivers 403.7% more PassMark for each dollar spent, at 37.4 vs 7.4 PassMark/$ ($385 MSRP vs $2,742 MSRP).
✅Draws 95W instead of 125W, a 30W reduction.
✅Integrated graphics onboard with UHD Graphics 630, while Xeon Gold 6138T needs a discrete GPU.

Trade-offs

❌Lower PassMark (14,397 vs 20,356).
❌Smaller total L3 cache (12 MB vs 28 MB).
❌Less compelling for workstation-style loads than Xeon Gold 6138T, which brings 20 cores / 40 threads and 48 PCIe lanes.

Xeon Gold 6138T

2017

Why buy it

✅+41.4% higher PassMark.
✅+129.2% larger total L3 cache (28 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 20 cores / 40 threads, plus 48 PCIe lanes vs 16.
✅200% more PCIe lanes (48 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-9700K across 50 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 7.4 vs 37.4 PassMark/$ ($2,742 MSRP vs $385 MSRP).
❌31.6% higher power demand at 125W 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 Xeon Gold 6138T?

Not really, because they are built for different jobs. Xeon Gold 6138T makes more sense for workstation-style multi-core throughput, while Core i7-9700K is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Xeon Gold 6138T is the stronger fit. You are getting 41.4% better PassMark, backed by 20 cores and 40 threads. It also has the larger cache pool with 129.2% larger total L3 cache (28 MB vs 12 MB).

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

Core i7-9700K is the better buy right now. Core i7-9700K comes in $2,357 cheaper on MSRP at $385 MSRP versus $2,742 MSRP, and it still gives you a 23.7% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon Gold 6138T is still stronger for heavier multi-core work with 41.4% better PassMark. It is also 403.7% better value on MSRP (37.4 vs 7.4 PassMark/$), 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 i7-9700K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2017). That makes it the safer long-term bet.

Core i7-9700K vs Xeon Gold 6138T Technical Specifications

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

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.

Xeon Gold 6138T

The Xeon Gold 6138T is manufactured by Intel. It was released in 25 April 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 20 cores and 40 threads. Base frequency is 2 GHz, with boost up to 3.7 GHz. L3 cache: 27.5 MB. L2 cache: 20 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 125 Watt. Memory support: DDR4-2666. Passmark benchmark score: 20,356 points. Launch price was $2,742.

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Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Xeon Gold 6138T offers 20 cores / 40 threads — the Xeon Gold 6138T has 12 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 3.7 GHz on the Xeon Gold 6138T — a 27.9% clock advantage for the Core i7-9700K (base: 3.6 GHz vs 2 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Xeon Gold 6138T uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i7-9700K scores 14,397 against the Xeon Gold 6138T's 20,356 — a 34.3% lead for the Xeon Gold 6138T. L3 cache: 12 MB (total) on the Core i7-9700K vs 27.5 MB on the Xeon Gold 6138T.

Feature	Core i7-9700K	Xeon Gold 6138T
Cores / Threads	8 / 8	20 / 40+150%
Boost Clock	4.9 GHz+32%	3.7 GHz
Base Clock	3.6 GHz+80%	2 GHz
L3 Cache	12 MB (total)	27.5 MB+129%
L2 Cache	256K (per core)+1180%	20 MB
Process	14 nm	14 nm
Architecture	Coffee Lake-R (2018−2019)	Skylake (server) (2017−2018)
PassMark	14,397	20,356+41%
Geekbench 6 Single	—	1,030
Geekbench 6 Multi	—	11,988

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Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Xeon Gold 6138T uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 memory speed. The Xeon Gold 6138T supports up to 768 GB of RAM compared to 128 GB — 500% more capacity for professional workloads. Memory channels: 2 (Core i7-9700K) vs 6 (Xeon Gold 6138T). PCIe lanes: 16 (Core i7-9700K) vs 48 (Xeon Gold 6138T) — the Xeon Gold 6138T offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 300 series (Core i7-9700K) and C620 (Xeon Gold 6138T).

Feature	Core i7-9700K	Xeon Gold 6138T
Socket	LGA1151	LGA3647
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666	DDR4-2666
Max RAM Capacity	128 GB	768 GB+500%
RAM Channels	2	6+200%
ECC Support	No	Yes
PCIe Lanes	16	48+200%

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Advanced Features

Only the Xeon Gold 6138T supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-9700K) vs Yes (Xeon Gold 6138T). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Xeon Gold 6138T requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.

Feature	Core i7-9700K	Xeon Gold 6138T
Integrated GPU	Yes	No
IGPU Model	UHD Graphics 630	—
Unlocked	Yes	—
AVX-512	No	Yes
Virtualization	VT-x, VT-d	Yes
Target Use	Desktop	—

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Value Analysis

At launch, the Core i7-9700K was priced at $385, while the Xeon Gold 6138T came in at $2742. On launch pricing ($385 vs $2742), Core i7-9700K was $2357 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-9700K delivers 37.4 pts/$ vs 7.4 pts/$ for the Xeon Gold 6138T — making the Core i7-9700K the 133.7% better value option.

Feature	Core i7-9700K	Xeon Gold 6138T
MSRP	$385-86%	$2742
Performance per Dollar	37.4+405%	7.4
Release Date	2018	2017

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