
Celeron 5305U vs Atom x7-Z8750

Celeron 5305U

Atom x7-Z8750
Performance Spectrum - CPU
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.
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. The Celeron 5305U is positioned at rank 656 and the Atom x7-Z8750 is on rank 664, so the Celeron 5305U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 5305U
Performance Per Dollar Atom x7-Z8750
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 5305U | Atom x7-Z8750 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) | 🛑 Legacy (Cherry Trail (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Celeron 5305U | Atom x7-Z8750 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
Performance Check
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.
Technical Specifications
Side-by-side comparison of Celeron 5305U and Atom x7-Z8750

Celeron 5305U
The Celeron 5305U is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 2 threads. Base frequency is 2.3 GHz, with boost up to 2.3 GHz. L3 cache: 2 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2400, LPDDR3-2133. Passmark benchmark score: 1,307 points. Launch price was $69.

Atom x7-Z8750
The Atom x7-Z8750 is manufactured by Intel. It was released in 1 April 2016 (9 years ago). It is based on the Cherry Trail (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 2.56 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: UTFCBGA1380. Thermal design power (TDP): 2 MB. Memory support: DDR3. Passmark benchmark score: 1,294 points. Launch price was $37.
Processing Power
The Celeron 5305U packs 2 cores / 2 threads, while the Atom x7-Z8750 offers 4 cores / 4 threads — the Atom x7-Z8750 has 2 more cores. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 2.56 GHz on the Atom x7-Z8750 — a 10.7% clock advantage for the Atom x7-Z8750 (base: 2.3 GHz vs 1.6 GHz). The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Atom x7-Z8750 uses Cherry Trail (2015−2016) (14 nm). In PassMark, the Celeron 5305U scores 1,307 against the Atom x7-Z8750's 1,294 — a 1% lead for the Celeron 5305U. L3 cache: 2 MB on the Celeron 5305U vs 0 kB on the Atom x7-Z8750.
| Feature | Celeron 5305U | Atom x7-Z8750 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 2.3 GHz | 2.56 GHz+11% |
| Base Clock | 2.3 GHz+44% | 1.6 GHz |
| L3 Cache | 2 MB | 0 kB |
| L2 Cache | — | 2 MB |
| Process | 14 nm | 14 nm |
| Architecture | Comet Lake-U (2019−2020) | Cherry Trail (2015−2016) |
| PassMark | 1,307+1% | 1,294 |
| Geekbench 6 Single | 480 | — |
| Geekbench 6 Multi | 865 | — |
Memory & Platform
The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the Atom x7-Z8750 uses UTFCBGA1380 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron 5305U versus LPDDR3-1600 on the Atom x7-Z8750 — the Celeron 5305U supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 5305U supports up to 64 GB of RAM compared to 8 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 5305U) vs 2 (Atom x7-Z8750) — the Celeron 5305U offers 10 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Comet Lake-U (Celeron 5305U) and Intel FC-UTBGA592 (Atom x7-Z8750).
| Feature | Celeron 5305U | Atom x7-Z8750 |
|---|---|---|
| Socket | FCBGA1528 | UTFCBGA1380 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2400+33% | LPDDR3-1600 |
| Max RAM Capacity | 64 GB+700% | 8 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 12+500% | 2 |
Advanced Features
Virtualization: VT-x, VT-d (Celeron 5305U) / not specified (Atom x7-Z8750). Both include integrated graphics — UHD Graphics (Comet Lake) (Celeron 5305U) and Intel HD Graphics (Cherry Trail) (Atom x7-Z8750) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 5305U targets Budget. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U.
| Feature | Celeron 5305U | Atom x7-Z8750 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | UHD Graphics (Comet Lake) | Intel HD Graphics (Cherry Trail) |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Budget | — |
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