Core i5-1334U vs Core i9-9900T

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 i5-1334U vs Core i9-9900T 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 i5-1334U vs Core i9-9900T: Pros, Cons & Final Verdict

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

Core i5-1334U

2023

Why buy it

✅Better for gaming: +9.5% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 15W instead of 35W, a 20W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA1151 and DDR4.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Iris Xe Graphics 80EU, while Core i9-9900T needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (12 MB vs 16 MB).

Core i9-9900T

2019

Why buy it

✅+33.3% larger total L3 cache (16 MB vs 12 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-1334U across 50 shared CPU benchmark tests.
❌Lower PassMark (13,208 vs 13,265).
❌Launch MSRP is still $423 MSRP, while Core i5-1334U mostly shows up through inconsistent older-market listings.
❌133.3% higher power demand at 35W vs 15W.
❌Older platform position on LGA1151 with DDR4, while Core i5-1334U moves to FCBGA1744 and DDR5.

Quick Answers

So, is Core i5-1334U better than Core i9-9900T?

Yes. Core i5-1334U is the better all-around CPU here. It gives you a 9.5% average FPS lead across 50 shared CPU game tests in our data, 0.4% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-1334U is the better pick. According to our tests, it delivers 9.5% 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 i5-1334U is the stronger fit. You are getting 0.4% better PassMark, backed by 10 cores and 12 threads.

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

Core i5-1334U is still the faster CPU overall, but Core i9-9900T is easier to justify if budget matters more than peak performance. Core i5-1334U comes in at an unclear MSRP at unclear MSRP versus $423 MSRP, and it still gives you a 9.5% average FPS lead across 50 shared CPU game tests in our data. Core i9-9900T is also 100.0% better value on MSRP (31.2 vs 0.0 PassMark/$), 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 i5-1334U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2019), a healthier platform with FCBGA1744 and DDR5 instead of LGA1151, and more multi-core headroom with 10 cores / 12 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-1334U vs Core i9-9900T Technical Specifications

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

Core i5-1334U

The Core i5-1334U is manufactured by Intel. It was released in 4 January 2023 (2 years ago). It is based on the Raptor Lake-U (2023) architecture. It features 10 cores and 12 threads. Base frequency is 1.3 GHz, with boost up to 4.6 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 15 Watt. Memory support: DDR5-5200, DDR4-3200, LPDDR4x-4267. Passmark benchmark score: 13,265 points. Launch price was $340.

Core i9-9900T

The Core i9-9900T is manufactured by Intel. It was released in 23 April 2019 (6 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 4.4 GHz. L3 cache: 16 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR4. Passmark benchmark score: 13,208 points. Launch price was $439.

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Processing Power

The Core i5-1334U packs 10 cores / 12 threads, while the Core i9-9900T offers 8 cores / 16 threads — the Core i5-1334U has 2 more cores. Boost clocks reach 4.6 GHz on the Core i5-1334U versus 4.4 GHz on the Core i9-9900T — a 4.4% clock advantage for the Core i5-1334U (base: 1.3 GHz vs 2.1 GHz). The Core i5-1334U uses the Raptor Lake-U (2023) architecture (Intel 7 nm), while the Core i9-9900T uses Coffee Lake-R (2018−2019) (14 nm). In PassMark, the Core i5-1334U scores 13,265 against the Core i9-9900T's 13,208 — a 0.4% lead for the Core i5-1334U. L3 cache: 12 MB (total) on the Core i5-1334U vs 16 MB (total) on the Core i9-9900T.

Feature	Core i5-1334U	Core i9-9900T
Cores / Threads	10 / 12+25%	8 / 16
Boost Clock	4.6 GHz+5%	4.4 GHz
Base Clock	1.3 GHz	2.1 GHz+62%
L3 Cache	12 MB (total)	16 MB (total)+33%
L2 Cache	1.25 MB (per core)	256K (per core)+20380%
Process	Intel 7 nm-50%	14 nm
Architecture	Raptor Lake-U (2023)	Coffee Lake-R (2018−2019)
PassMark	13,265	13,208
Geekbench 6 Single	2,390	—

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Memory & Platform

The Core i5-1334U uses the FCBGA1744 socket (PCIe 5.0), while the Core i9-9900T uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-1334U	Core i9-9900T
Socket	FCBGA1744	LGA1151
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	LPDDR5-5200	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-1334U) / not specified (Core i9-9900T). The Core i5-1334U includes integrated graphics (Iris Xe Graphics 80EU), while the Core i9-9900T requires a dedicated GPU. Primary use case: Core i5-1334U targets Mainstream Laptop. Direct competitor: Core i5-1334U rivals Ryzen 5 7520U.