Core Ultra 5 135U vs Xeon Platinum 8256

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Core Ultra 5 135U

#64

Ryzen AI Max PRO 390

MSRP: $600|Avg: $600

106%

#73

Core i9-13950HX

MSRP: $590|Avg: $199

103%

#77

Core Ultra 5 135U

MSRP: N/A|Avg: N/A

100%

#82

Core i7-11700B

MSRP: $323|Avg: $311

99%

#83

Core i7-13700HX

MSRP: $485|Avg: N/A

98%

#86

Ryzen AI 9 HX PRO 370

MSRP: $500|Avg: $500

97%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Xeon Platinum 8256

#115

Xeon W-1370

MSRP: $323|Avg: $323

106%

#119

Xeon 6505P

MSRP: $563|Avg: $563

104%

#128

Xeon Platinum 8256

MSRP: N/A|Avg: N/A

100%

#130

EPYC 9115

MSRP: $726|Avg: $726

99%

#131

EPYC 74F3

MSRP: $913|Avg: $824

99%

#143

Xeon W-1350P

MSRP: $311|Avg: $250

94%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Use Case Distinction: This is a comparison between a Professional Workstation processor ($0) and a Consumer Desktop CPU. The Xeon Platinum 8256 is engineered for massive parallel workloads (rendering, scientific simulations), offering significantly higher core counts.

Insight	Core Ultra 5 135U	Xeon Platinum 8256
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Meteor Lake-P (2023) / 7 nm)	✨ Modern (Cascade Lake-SP (2018) / 14 nm)

💎 Value Proposition

The Core Ultra 5 135U ($0), however, is optimized for mixed workloads and gaming. For most users, it offers superior single-thread performance and responsiveness at a fraction of the cost ($0 less, NaN% cheaper), making it the better choice for daily use and gaming.

Insight	Core Ultra 5 135U	Xeon Platinum 8256
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

Performance Check

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 Ultra 5 135U Benchmark Check

Xeon Platinum 8256 Benchmark Check

Technical Specifications

Side-by-side comparison of Core Ultra 5 135U and Xeon Platinum 8256

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.

Xeon Platinum 8256

The Xeon Platinum 8256 is manufactured by Intel. It was released in 11 December 2018 (6 years ago). It is based on the Cascade Lake-SP (2018) architecture. It features 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 3.9 GHz. L3 cache: 16.5 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 105 Watt. Memory support: DDR4-2933. Passmark benchmark score: 16,787 points. Launch price was $7,007.

⚡

Processing Power

The Core Ultra 5 135U packs 12 cores / 14 threads, while the Xeon Platinum 8256 offers 4 cores / 8 threads — the Core Ultra 5 135U has 8 more cores. Boost clocks reach 4.4 GHz on the Core Ultra 5 135U versus 3.9 GHz on the Xeon Platinum 8256 — a 12% clock advantage for the Core Ultra 5 135U (base: 1.6 GHz vs 3.8 GHz). The Core Ultra 5 135U uses the Meteor Lake-P (2023) architecture (7 nm), while the Xeon Platinum 8256 uses Cascade Lake-SP (2018) (14 nm). In PassMark, the Core Ultra 5 135U scores 16,900 against the Xeon Platinum 8256's 16,787 — a 0.7% lead for the Core Ultra 5 135U. L3 cache: 12 MB (total) on the Core Ultra 5 135U vs 16.5 MB (total) on the Xeon Platinum 8256.

Feature	Core Ultra 5 135U	Xeon Platinum 8256
Cores / Threads	12 / 14+200%	4 / 8
Boost Clock	4.4 GHz+13%	3.9 GHz
Base Clock	1.6 GHz	3.8 GHz+137%
L3 Cache	12 MB (total)	16.5 MB (total)+38%
L2 Cache	2 MB (per core)+100%	1 MB (per core)
Process	7 nm-50%	14 nm
Architecture	Meteor Lake-P (2023)	Cascade Lake-SP (2018)
PassMark	16,900	16,787
Cinebench R23 Multi	9,315	—
Geekbench 6 Single	1,948	—
Geekbench 6 Multi	8,000	—

🧠

Memory & Platform

The Core Ultra 5 135U uses the FCBGA2049 socket (PCIe 5.0), while the Xeon Platinum 8256 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core Ultra 5 135U	Xeon Platinum 8256
Socket	FCBGA2049	LGA3647
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	DDR5-5600	—
Max RAM Capacity	96 GB	—
RAM Channels	2	—
ECC Support	❌	—
PCIe Lanes	20	—

🔧

Advanced Features

Virtualization: Yes (Core Ultra 5 135U) / not specified (Xeon Platinum 8256). The Core Ultra 5 135U includes integrated graphics (Intel Arc Graphics), while the Xeon Platinum 8256 requires a dedicated GPU.