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| Users would be paying a few hundred dollars more for the Core Ultra 7 355 for almost no gains over the cheaper Core Ultra 5 325 |
Intel’s new Panther Lake Series 3 Core processors are officially here, making their debut in the latest wave of high-end laptops like the Dell XPS 16 and XPS 14. With names like Core Ultra 5 325, Core Ultra 7 355, and the flagship Core Ultra X7 358H hitting the shelves, you’d expect a clear performance ladder: spend more, get more power.
But after putting the first retail units through our extensive benchmarking suite at Notebookcheck, we’ve uncovered a surprising twist. The performance difference between the mid-range Core Ultra 5 325 and the more expensive Core Ultra 7 355 is so slim it’s practically non-existent. In many real-world tests, they are dead even.
Here’s everything you need to know about how these new Panther Lake chips perform, where you should actually spend your money, and why skipping the Core Ultra 7 might be the smartest move you can make.
The Panther Lake Lineup: What’s New in 2026?
Intel’s Panther Lake architecture represents the latest step in its processor evolution, focusing on integrated AI capabilities (NPU) and improved power efficiency for the next generation of ultraportables. The initial rollout for consumer laptops includes three primary tiers:
- Core Ultra 5 325: The “entry-level” high-performance option.
- Core Ultra 7 355: The mid-range premium option.
- Core Ultra X7 358H: The top-tier enthusiast option.
On paper, the naming scheme suggests a tiered hierarchy. However, a deep dive into the spec sheets reveals the first red flag: the Core Ultra 5 325 and Core Ultra 7 355 share the exact same core count, cache sizes, integrated Xe3 graphics (4 cores), and target thermal design power (TGP) .
In the world of processors, identical specifications usually lead to identical performance. Our benchmark results confirmed exactly that.
Benchmark Breakdown: The Ultra 5 and Ultra 7 Are Neck-and-Neck
We tested the Core Ultra 5 325 inside a Dell XPS 16 and the Core Ultra 7 355 inside a Dell XPS 14 under controlled conditions. Across synthetic benchmarks, productivity tasks, and gaming, the two chips delivered results that were within a margin of error.
CPU Performance: A 3% Difference
When it comes to raw processing power, the difference is negligible. In multi-core workloads, which are the bread and butter of video editing, 3D rendering, and heavy multitasking, the Core Ultra 7 355 averaged a mere 3% lead over the Core Ultra 5 325.
- Cinebench R23 Multi-Core: The Ultra 5 scored 10,989 points, while the Ultra 7 scored 11,348 points. That’s a gap of just 3% .
- Geekbench 6.5 Multi-Core: The Ultra 5 achieved 11,088 points vs. the Ultra 7’s 11,394 points—again, a 3% advantage.
- 7-Zip Compression: In file compression tests, the performance delta was again 3% .
In single-core tasks (which dictate general system responsiveness, web browsing, and office work), the Ultra 7 pulled ahead by an average of 4 to 8% . While technically measurable, this difference is imperceptible to the human eye.
Gaming and Graphics: No Advantage for the Ultra 7
If you were hoping the more expensive Core Ultra 7 would offer better integrated graphics for light gaming, you’ll be disappointed. Both processors use the identical Intel Graphics 4 Xe3 Panther Lake iGPU.
In 3DMark Time Spy, the Core Ultra 7 scored 3,250 points compared to the Ultra 5’s 3,092 points—a 5% difference. In real-world gaming, the story was similar:
- Cyberpunk 2077 (1080p Low): The Ultra 5 averaged 35.2 fps, while the Ultra 7 actually dipped slightly to 32.7 fps.
- Baldur’s Gate 3 (1080p Low): Both chips delivered virtually identical performance, with the Ultra 5 at 27.4 fps and the Ultra 7 at 28.4 fps.
Simply put, if you’re buying a laptop for casual gaming or creative work, there is zero performance-based reason to pay the premium for the Core Ultra 7 355 over the Core Ultra 5 325.
The Real Upgrade: Core Ultra X7 358H
If the Core Ultra 5 and Ultra 7 are twins, the Core Ultra X7 358H is the hulking older sibling that actually hits the gym.
The X7 model features significantly more CPU cores, a substantially larger GPU (Intel Arc B390 with 12 Xe3 cores), and a higher power envelope. The performance jump here is not incremental—it’s generational.
- Multi-Threaded Power: In Cinebench R20, the Core Ultra X7 358H was 75% faster than the Ultra 5 and Ultra 7.
- Graphics Performance: In 3DMark Fire Strike, the X7’s integrated graphics were a staggering 154% faster than the Ultra 5/7’s iGPU.
- Gaming: In F1 24 at 1080p Low settings, the X7 achieved 145.9 fps, compared to the Ultra 5’s 55.6 fps. That’s a 162% uplift, making the X7 a viable option for serious gaming without a discrete GPU.
If you need raw performance for video editing, 3D rendering, or high-fidelity gaming, the Core Ultra X7 358H is the only worthwhile upgrade path.
Should You Buy the Core Ultra 5 or Core Ultra 7?
Given the benchmark data, the recommendation is clear:
Buy the Core Ultra 5 325
This is the obvious choice for most users. It delivers the same multi-core and gaming performance as the Core Ultra 7 but at a significantly lower price point. You get the full Panther Lake experience—including the latest NPU for AI tasks, efficient power management, and modern I/O—without paying for a meaningless “7” badge.
Skip the Core Ultra 7 355
Unless there is a specific configuration lock (for example, a manufacturer only pairing the Ultra 7 with a higher-tier screen or more RAM), there is no compelling reason to choose this chip. You are paying a premium for essentially the same silicon as the Ultra 5.
Splurge on the Core Ultra X7 358H
If you are a power user, creator, or gamer, the X7 is the only processor in this lineup that justifies its price tag. The performance increase is massive across the board, making it the true high-performance offering in Intel’s Panther Lake Series 3 stack.
Final Verdict
Intel’s naming scheme can sometimes be confusing, but the message from our benchmarks is unusually straightforward. The Core Ultra 5 325 and Core Ultra 7 355 are two names for the same level of performance. Save your money, opt for the Ultra 5, and put those extra dollars towards more RAM, a better display, or upgrading to the flagship Core Ultra X7 358H if you truly need the power.
All benchmark data sourced from Notebookcheck’s review of the Dell XPS 14 and XPS 16 (March 2026).