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 i5-10400F

2020

Why buy it

✅Costs $2,582 less on MSRP ($160 MSRP vs $2,742 MSRP).
✅Delivers 996.9% more PassMark for each dollar spent, at 81.4 vs 7.4 PassMark/$ ($160 MSRP vs $2,742 MSRP).
✅Draws 65W instead of 125W, a 60W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon Gold 6138T.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 6138T across 50 shared CPU benchmark tests.
❌Lower Geekbench multi-core (5,783 vs 11,988).
❌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

✅Better for gaming: +4.9% higher average FPS across 50 shared CPU benchmark tests.
✅+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

❌Lower PassMark per dollar, at 7.4 vs 81.4 PassMark/$ ($2,742 MSRP vs $160 MSRP).
❌92.3% higher power demand at 125W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Core i5-10400F

2020

Xeon Gold 6138T

2017

Why buy it

✅Costs $2,582 less on MSRP ($160 MSRP vs $2,742 MSRP).
✅Delivers 996.9% more PassMark for each dollar spent, at 81.4 vs 7.4 PassMark/$ ($160 MSRP vs $2,742 MSRP).
✅Draws 65W instead of 125W, a 60W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon Gold 6138T.

Why buy it

✅Better for gaming: +4.9% higher average FPS across 50 shared CPU benchmark tests.
✅+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 Xeon Gold 6138T across 50 shared CPU benchmark tests.
❌Lower Geekbench multi-core (5,783 vs 11,988).
❌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.

Trade-offs

❌Lower PassMark per dollar, at 7.4 vs 81.4 PassMark/$ ($2,742 MSRP vs $160 MSRP).
❌92.3% higher power demand at 125W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Xeon Gold 6138T better than Core i5-10400F?

Not in a simple one-size-fits-all way. Xeon Gold 6138T makes more sense for workstation-style multi-core throughput, while Core i5-10400F 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 Gold 6138T is the better pick here. According to our tests, it delivers 4.9% 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, Xeon Gold 6138T is the better fit. You are getting 107.3% better Geekbench multi-core, backed by 20 cores and 40 threads. It also carries 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?

Xeon Gold 6138T is still the faster CPU overall, but Core i5-10400F makes more sense if price matters more than absolute performance. Xeon Gold 6138T is 1613.8% more expensive on MSRP at $2,742 MSRP versus $160 MSRP, and it gives you a 4.9% average FPS lead across 50 shared CPU game tests in our data. Core i5-10400F is also 996.9% better value on MSRP (81.4 vs 7.4 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Core i5-10400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2020 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 i5-10400F Benchmark Check

Xeon Gold 6138T Benchmark Check

Path of Exile 2

Preset	Core i5-10400F	Xeon Gold 6138T
1080p
low	192 FPS	189 FPS
medium	152 FPS	153 FPS
high	123 FPS	123 FPS
ultra	100 FPS	96 FPS
1440p
low	153 FPS	149 FPS
medium	119 FPS	117 FPS
high	97 FPS	93 FPS
ultra	79 FPS	73 FPS
4K
low	82 FPS	69 FPS
medium	70 FPS	58 FPS
high	55 FPS	46 FPS
ultra	43 FPS	36 FPS

Open Core i5-10400F Open Xeon Gold 6138T

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-10400F	Xeon Gold 6138T
1080p
low	326 FPS	213 FPS
medium	318 FPS	188 FPS
high	290 FPS	161 FPS
ultra	253 FPS	136 FPS
1440p
low	326 FPS	184 FPS
medium	292 FPS	166 FPS
high	267 FPS	143 FPS
ultra	234 FPS	120 FPS
4K
low	309 FPS	120 FPS
medium	258 FPS	109 FPS
high	235 FPS	99 FPS
ultra	199 FPS	82 FPS

Open Core i5-10400F Open Xeon Gold 6138T

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-10400F	Xeon Gold 6138T
1080p
low	326 FPS	509 FPS
medium	326 FPS	509 FPS
high	326 FPS	495 FPS
ultra	326 FPS	429 FPS
1440p
low	326 FPS	509 FPS
medium	326 FPS	449 FPS
high	326 FPS	408 FPS
ultra	326 FPS	354 FPS
4K
low	326 FPS	399 FPS
medium	326 FPS	314 FPS
high	289 FPS	281 FPS
ultra	229 FPS	226 FPS

Open Core i5-10400F Open Xeon Gold 6138T

League of Legends

League of Legends

Valorant

Preset	Core i5-10400F	Xeon Gold 6138T
1080p
low	326 FPS	509 FPS
medium	326 FPS	509 FPS
high	326 FPS	509 FPS
ultra	326 FPS	509 FPS
1440p
low	326 FPS	509 FPS
medium	326 FPS	509 FPS
high	326 FPS	509 FPS
ultra	326 FPS	463 FPS
4K
low	326 FPS	496 FPS
medium	326 FPS	445 FPS
high	326 FPS	396 FPS
ultra	326 FPS	340 FPS

Open Core i5-10400F Open Xeon Gold 6138T

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-10400F and Xeon Gold 6138T

Core i5-10400F

The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.

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.

⚡

Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Xeon Gold 6138T offers 20 cores / 40 threads — the Xeon Gold 6138T has 14 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 3.7 GHz on the Xeon Gold 6138T — a 15% clock advantage for the Core i5-10400F (base: 2.9 GHz vs 2 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Xeon Gold 6138T uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i5-10400F scores 13,029 against the Xeon Gold 6138T's 20,356 — a 43.9% lead for the Xeon Gold 6138T. Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 1,030, a 34.1% lead for the Core i5-10400F that directly translates to higher frame rates. Multi-core Geekbench: 5,783 vs 11,988 (69.8% advantage for the Xeon Gold 6138T). L3 cache: 12 MB (total) on the Core i5-10400F vs 27.5 MB on the Xeon Gold 6138T.

Feature	Core i5-10400F	Xeon Gold 6138T
Cores / Threads	6 / 12	20 / 40+233%
Boost Clock	4.3 GHz+16%	3.7 GHz
Base Clock	2.9 GHz+45%	2 GHz
L3 Cache	12 MB (total)	27.5 MB+129%
L2 Cache	256K (per core)	20 MB+7900%
Process	14 nm	14 nm
Architecture	Comet Lake (2020−2025)	Skylake (server) (2017−2018)
PassMark	13,029	20,356+56%
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454+41%	1,030
Geekbench 6 Multi	5,783	11,988+107%

🧠

Memory & Platform

The Core i5-10400F uses the LGA1200 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 — 142.9% more capacity for professional workloads. Memory channels: 2 (Core i5-10400F) vs 6 (Xeon Gold 6138T). PCIe lanes: 16 (Core i5-10400F) vs 48 (Xeon Gold 6138T) — the Xeon Gold 6138T offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and C620 (Xeon Gold 6138T).

Feature	Core i5-10400F	Xeon Gold 6138T
Socket	LGA1200	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%

🔧

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 i5-10400F) vs Yes (Xeon Gold 6138T). Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

Feature	Core i5-10400F	Xeon Gold 6138T
Integrated GPU	No	No
Unlocked	No	—
AVX-512	No	Yes
Virtualization	VT-x, VT-d	Yes
Target Use	Gaming	—

💰

Value Analysis

The Core i5-10400F launched at $160 MSRP, while the Xeon Gold 6138T debuted at $2742. On MSRP ($160 vs $2742), the Core i5-10400F is $2582 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-10400F delivers 81.4 pts/$ vs 7.4 pts/$ for the Xeon Gold 6138T — making the Core i5-10400F the 166.6% better value option.