Core i5-11500B vs Core Ultra 5 135U

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 i5-11500B vs Core Ultra 5 135U 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 i5-11500B vs Core Ultra 5 135U: Pros, Cons & Final Verdict

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

Core i5-11500B

2021

Why buy it

Trade-offs

❌Launch MSRP is still $185 MSRP, while Core Ultra 5 135U mostly shows up through inconsistent older-market listings.
❌Older platform position on FCBGA1787 with DDR4, while Core Ultra 5 135U moves to FCBGA2049 and DDR5.

Core Ultra 5 135U

2023

Why buy it

✅Newer platform on FCBGA2049 with DDR5 support instead of FCBGA1787 and DDR4.

Trade-offs

❌Lower PassMark (16,900 vs 17,075).

Quick Answers

So, is Core i5-11500B better than Core Ultra 5 135U?

Yes. Core i5-11500B is the better all-around CPU here. It gives you a 1.9% average FPS lead across 50 shared CPU game tests in our data and 1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-11500B is the better pick. According to our tests, it delivers 1.9% 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, Core i5-11500B is the stronger fit. You are getting 1% better PassMark, backed by 6 cores and 12 threads.

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

Core i5-11500B is the better buy right now. Core i5-11500B comes in at an unclear MSRP at $185 MSRP versus unclear MSRP, and it still gives you a 1.9% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (92.3 vs 0.0 PassMark/$), 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 Ultra 5 135U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021) and a healthier platform with FCBGA2049 and DDR5 instead of FCBGA1787. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-11500B vs Core Ultra 5 135U Technical Specifications

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

Core i5-11500B

The Core i5-11500B is manufactured by Intel. It was released in 1 April 2021 (4 years ago). It is based on the Tiger Lake-H (2021) architecture. It features 6 cores and 12 threads. Base frequency is 3.3 GHz, with boost up to 4.6 GHz. L3 cache: 12 MB. L2 cache: 7.5 MB. Built on 10 nm process technology. Socket: FCBGA1787. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 17,075 points. Launch price was $299.

Core Ultra 5 135U

The Core Ultra 5 135U is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Meteor Lake-P (2023) architecture. It features 12 cores and 14 threads. Base frequency is 1.6 GHz, with boost up to 4.4 GHz. L3 cache: 12 MB (total). L2 cache: 2 MB (per core). Built on 7 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): + 12 MB. Memory support: DDR5. Passmark benchmark score: 16,900 points. Launch price was $332.

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Processing Power

The Core i5-11500B packs 6 cores / 12 threads, while the Core Ultra 5 135U offers 12 cores / 14 threads — the Core Ultra 5 135U has 6 more cores. Boost clocks reach 4.6 GHz on the Core i5-11500B versus 4.4 GHz on the Core Ultra 5 135U — a 4.4% clock advantage for the Core i5-11500B (base: 3.3 GHz vs 1.6 GHz). The Core i5-11500B uses the Tiger Lake-H (2021) architecture (10 nm), while the Core Ultra 5 135U uses Meteor Lake-P (2023) (7 nm). In PassMark, the Core i5-11500B scores 17,075 against the Core Ultra 5 135U's 16,900 — a 1% lead for the Core i5-11500B. L3 cache: 12 MB on the Core i5-11500B vs 12 MB (total) on the Core Ultra 5 135U.

Feature	Core i5-11500B	Core Ultra 5 135U
Cores / Threads	6 / 12	12 / 14+100%
Boost Clock	4.6 GHz+5%	4.4 GHz
Base Clock	3.3 GHz+106%	1.6 GHz
L3 Cache	12 MB	12 MB (total)
L2 Cache	7.5 MB+275%	2 MB (per core)
Process	10 nm	7 nm-30%
Architecture	Tiger Lake-H (2021)	Meteor Lake-P (2023)
PassMark	17,075+1%	16,900
Cinebench R23 Multi	—	9,315
Geekbench 6 Single	—	1,948
Geekbench 6 Multi	—	8,000

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Memory & Platform

The Core i5-11500B uses the FCBGA1787 socket (PCIe 4.0), while the Core Ultra 5 135U uses FCBGA2049 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Core i5-11500B versus DDR5-5600 on the Core Ultra 5 135U — the Core Ultra 5 135U supports 75% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-11500B supports up to 128 GB of RAM compared to 96 GB — 33.3% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes.

Feature	Core i5-11500B	Core Ultra 5 135U
Socket	FCBGA1787	FCBGA2049
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	DDR5-5600+75%
Max RAM Capacity	128 GB+33%	96 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	20	20

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Advanced Features

Only the Core i5-11500B supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i5-11500B) vs Yes (Core Ultra 5 135U). Both include integrated graphics — UHD Graphics 32EU (Core i5-11500B) and Intel Arc Graphics (Core Ultra 5 135U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-11500B targets Desktop / Mini PC.