Core i5-12400T vs Xeon E5-4667 v3

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 i5-12400T vs Xeon E5-4667 v3 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 i5-12400T vs Xeon E5-4667 v3: Pros, Cons & Final Verdict

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

Core i5-12400T

2022

Why buy it

✅Draws 35W instead of 135W, a 100W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA2011 and DDR4.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 730, while Xeon E5-4667 v3 needs a discrete GPU.
✅Includes a boxed cooler (Intel Laminar RM1), unlike Xeon E5-4667 v3.

Trade-offs

❌Smaller total L3 cache (18 MB vs 40 MB).
❌Less compelling for workstation-style loads than Xeon E5-4667 v3, which brings 16 cores / 32 threads.
❌Lower PassMark per dollar, at 81.0 vs 120.3 PassMark/$ ($192 MSRP vs $128 MSRP).

Xeon E5-4667 v3

2015

Why buy it

✅+122.2% larger total L3 cache (40 MB vs 18 MB).
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads.
✅Costs $64 less on MSRP ($128 MSRP vs $192 MSRP).
✅Delivers 48.6% more PassMark for each dollar spent, at 120.3 vs 81.0 PassMark/$ ($128 MSRP vs $192 MSRP).

Trade-offs

❌Lower PassMark (15,397 vs 15,543).
❌285.7% higher power demand at 135W vs 35W.
❌Older platform position on LGA2011 with DDR4, while Core i5-12400T moves to LGA1700 and DDR5.
❌No integrated graphics, while Core i5-12400T can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-12400T.

Quick Answers

So, is Core i5-12400T better than Xeon E5-4667 v3?

Not really, because they are built for different jobs. Xeon E5-4667 v3 makes more sense for workstation-style multi-core throughput, while Core i5-12400T 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 i5-12400T is the better pick. According to our tests, it delivers 2.5% 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 i5-12400T is the stronger fit. You are getting 0.9% better PassMark, backed by 6 cores and 12 threads.

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

Core i5-12400T is still the faster CPU overall, but Xeon E5-4667 v3 is easier to justify if budget matters more than peak performance. Core i5-12400T comes in 50.0% more expensive on MSRP at $192 MSRP versus $128 MSRP, and it still gives you a 2.5% average FPS lead across 50 shared CPU game tests in our data. Xeon E5-4667 v3 is also 48.6% better value on MSRP (120.3 vs 81.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Core i5-12400T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2015), a healthier platform with LGA1700 and DDR5 instead of LGA2011, and more multi-core headroom with 6 cores / 12 threads instead of 16/32. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-12400T vs Xeon E5-4667 v3 Technical Specifications

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

Core i5-12400T

The Core i5-12400T is manufactured by Intel. It was released in Janeiro 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 1.8 GHz, with boost up to 4.2 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 35 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 15,543 points. Launch price was $299.

Xeon E5-4667 v3

The Xeon E5-4667 v3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 16 cores and 32 threads. Base frequency is 2 GHz, with boost up to 2.9 GHz. L3 cache: 40 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 135 Watt. Memory support: DDR4. Passmark benchmark score: 15,397 points. Launch price was $800.

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Processing Power

The Core i5-12400T packs 6 cores / 12 threads, while the Xeon E5-4667 v3 offers 16 cores / 32 threads — the Xeon E5-4667 v3 has 10 more cores. Boost clocks reach 4.2 GHz on the Core i5-12400T versus 2.9 GHz on the Xeon E5-4667 v3 — a 36.6% clock advantage for the Core i5-12400T (base: 1.8 GHz vs 2 GHz). The Core i5-12400T uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon E5-4667 v3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Core i5-12400T scores 15,543 against the Xeon E5-4667 v3's 15,397 — a 0.9% lead for the Core i5-12400T. L3 cache: 18 MB (total) on the Core i5-12400T vs 40 MB (total) on the Xeon E5-4667 v3.

Feature	Core i5-12400T	Xeon E5-4667 v3
Cores / Threads	6 / 12	16 / 32+167%
Boost Clock	4.2 GHz+45%	2.9 GHz
Base Clock	1.8 GHz	2 GHz+11%
L3 Cache	18 MB (total)	40 MB (total)+122%
L2 Cache	1.25 MB (per core)	256K (per core)+20380%
Process	Intel 7 nm-68%	22 nm
Architecture	Alder Lake-S (2022)	Haswell-EP (2014−2015)
PassMark	15,543	15,397
Geekbench 6 Single	1,650	—
Geekbench 6 Multi	7,800	—

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Memory & Platform

The Core i5-12400T uses the LGA1700 socket (PCIe 5.0), while the Xeon E5-4667 v3 uses LGA2011 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-12400T	Xeon E5-4667 v3
Socket	LGA1700	LGA2011
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	DDR5-4800	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-12400T) / not specified (Xeon E5-4667 v3). The Core i5-12400T includes integrated graphics (Intel UHD Graphics 730), while the Xeon E5-4667 v3 requires a dedicated GPU. Primary use case: Core i5-12400T targets Office/Home Desktop.

Feature	Core i5-12400T	Xeon E5-4667 v3
Integrated GPU	Yes	—
IGPU Model	Intel UHD Graphics 730	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d, EPT	—
Target Use	Office/Home Desktop	—

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Value Analysis

At launch, the Core i5-12400T was priced at $192, while the Xeon E5-4667 v3 came in at $128. On launch pricing ($192 vs $128), Xeon E5-4667 v3 was $64 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400T delivers 81.0 pts/$ vs 120.3 pts/$ for the Xeon E5-4667 v3 — making the Xeon E5-4667 v3 the 39.1% better value option.

Feature	Core i5-12400T	Xeon E5-4667 v3
MSRP	$192	$128-33%
Performance per Dollar	81.0	120.3+49%
Release Date	2022	2015

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