Core i9-7980XE vs Core Ultra 5 235H

Intel

Core i9-7980XE

18 Cores36 Thrd165 WWMax: 4.4 GHz2017
Similar parts
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VS
Intel

Core Ultra 5 235H

14 Cores14 Thrd20 WWMax: 5 GHz2025

Core i9-7980XE vs Core Ultra 5 235H Performance Spectrum

About PassMark

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 i9-7980XE vs Core Ultra 5 235H 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 i9-7980XE vs Core Ultra 5 235H: Pros, Cons & Final Verdict

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

Core i9-7980XE

2017

Why buy it

  • +37.5% larger total L3 cache (25 MB vs 18 MB).
  • 57.1% more PCIe lanes (44 vs 28) for storage and expansion-heavy builds.

Trade-offs

  • Worse for gaming: lower average FPS than Core Ultra 5 235H across 50 shared CPU benchmark tests.
  • Lower PassMark (29,634 vs 29,820).
  • Launch MSRP is still $1,999 MSRP, while Core Ultra 5 235H mostly shows up through inconsistent older-market listings.
  • 725% higher power demand at 165W vs 20W.
  • Older platform position on LGA2066 with DDR4, while Core Ultra 5 235H moves to FCBGA2049 and DDR5.

Core Ultra 5 235H

2025

Why buy it

  • Better for gaming: +36.5% higher average FPS across 50 shared CPU benchmark tests.
  • Draws 20W instead of 165W, a 145W reduction.
  • Newer platform on FCBGA2049 with DDR5 support instead of LGA2066 and DDR4.
  • Integrated graphics onboard with Intel Arc 140T Graphics, while Core i9-7980XE needs a discrete GPU.

Trade-offs

  • Smaller total L3 cache (18 MB vs 25 MB).

Quick Answers

So, is Core Ultra 5 235H better than Core i9-7980XE?
Yes. Core Ultra 5 235H is the better all-around CPU here. It gives you a 36.5% average FPS lead across 50 shared CPU game tests in our data, 0.6% 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 Ultra 5 235H is the better pick. According to our tests, it delivers 36.5% 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 Ultra 5 235H is the stronger fit. You are getting 0.6% better PassMark, backed by 14 cores and 14 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Core Ultra 5 235H is still the much better call for a fresh build. Core Ultra 5 235H comes in at an unclear MSRP at unclear MSRP versus $1,999 MSRP, and it still gives you a 36.5% average FPS lead across 50 shared CPU game tests in our data. Core i9-7980XE only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2017 platform. Even with 100.0% better value on paper (14.8 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA2066.
Which one is more future-proof for 2026 and beyond?
Core Ultra 5 235H makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2017), a healthier platform with FCBGA2049 and DDR5 instead of LGA2066, and more multi-core headroom with 14 cores / 14 threads instead of 18/36. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-7980XE vs Core Ultra 5 235H Technical Specifications

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

Intel

Core i9-7980XE

The Core i9-7980XE is manufactured by Intel. It was released in 1 September 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 18 cores and 36 threads. Base frequency is 2.6 GHz, with boost up to 4.4 GHz. L3 cache: 24.75 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 29,634 points. Launch price was $1,999.

Intel

Core Ultra 5 235H

The Core Ultra 5 235H is manufactured by Intel. It was released in 1 January 2025 (less than a year ago). It is based on the Arrow Lake-H (2025) architecture. It features 14 cores and 14 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 18 MB. Built on 5 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): 20 MB + 18 MB. Memory support: DDR5-6400. Passmark benchmark score: 29,820 points. Launch price was $354.

Processing Power

The Core i9-7980XE packs 18 cores / 36 threads, while the Core Ultra 5 235H offers 14 cores / 14 threads — the Core i9-7980XE has 4 more cores. Boost clocks reach 4.4 GHz on the Core i9-7980XE versus 5 GHz on the Core Ultra 5 235H — a 12.8% clock advantage for the Core Ultra 5 235H (base: 2.6 GHz vs 4.4 GHz). The Core i9-7980XE uses the Skylake (server) (2017−2018) architecture (14 nm), while the Core Ultra 5 235H uses Arrow Lake-H (2025) (5 nm). In PassMark, the Core i9-7980XE scores 29,634 against the Core Ultra 5 235H's 29,820 — a 0.6% lead for the Core Ultra 5 235H. L3 cache: 24.75 MB (total) on the Core i9-7980XE vs 18 MB on the Core Ultra 5 235H.

FeatureCore i9-7980XECore Ultra 5 235H
Cores / Threads
18 / 36+29%
14 / 14
Boost Clock
4.4 GHz
5 GHz+14%
Base Clock
2.6 GHz
4.4 GHz+69%
L3 Cache
24.75 MB (total)+38%
18 MB
L2 Cache
1 MB (per core)
Process
14 nm
5 nm-64%
Architecture
Skylake (server) (2017−2018)
Arrow Lake-H (2025)
PassMark
29,634
29,820
Cinebench R23 Multi
17,607
Geekbench 6 Single
2,693
Geekbench 6 Multi
14,040
🧠

Memory & Platform

The Core i9-7980XE uses the LGA2066 socket (PCIe 3.0), while the Core Ultra 5 235H uses FCBGA2049 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i9-7980XE versus DDR5-6400 on the Core Ultra 5 235H — the Core Ultra 5 235H supports 140.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core Ultra 5 235H supports up to 192 GB of RAM compared to 128 GB 50% more capacity for professional workloads. Memory channels: 4 (Core i9-7980XE) vs 2 (Core Ultra 5 235H). PCIe lanes: 44 (Core i9-7980XE) vs 28 (Core Ultra 5 235H) — the Core i9-7980XE offers 16 more lanes for additional GPUs or NVMe drives.

FeatureCore i9-7980XECore Ultra 5 235H
Socket
LGA2066
FCBGA2049
PCIe Generation
PCIe 3.0
PCIe 5.0+67%
Max RAM Speed
DDR4-2666
DDR5-6400+140%
Max RAM Capacity
128 GB
192 GB+50%
RAM Channels
4+100%
2
ECC Support
No
No
PCIe Lanes
44+57%
28
🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Core i9-7980XE supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i9-7980XE) vs VT-x, VT-d, EPT (Core Ultra 5 235H). The Core Ultra 5 235H includes integrated graphics (Intel Arc 140T Graphics), while the Core i9-7980XE requires a dedicated GPU. Primary use case: Core i9-7980XE targets Workstation, Core Ultra 5 235H targets Thin-and-light Performance Laptop. Direct competitor: Core Ultra 5 235H rivals Ryzen 7 9800H.

FeatureCore i9-7980XECore Ultra 5 235H
Integrated GPU
No
Yes
IGPU Model
Intel Arc 140T Graphics
Unlocked
Yes
Yes
AVX-512
Yes
No
Virtualization
VT-x, VT-d
VT-x, VT-d, EPT
Target Use
Workstation
Thin-and-light Performance Laptop