
Celeron 2955U

Celeron 6305
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 2955U is positioned at rank 427 and the Celeron 6305 is on rank 897, so the Celeron 2955U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 2955U
Performance Per Dollar Celeron 6305
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 2955U | Celeron 6305 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($80) |
| Longevity | 🛑 Legacy (Haswell (2013−2015) / 22 nm) | ✨ Modern (Tiger Lake-U (2020−2021) / 10 nm SuperFin) |
💎 Value Proposition
| Insight | Celeron 2955U | Celeron 6305 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($80) |
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.

Counter-Strike 2

Valorant
Technical Specifications
Side-by-side comparison of Celeron 2955U and Celeron 6305

Celeron 2955U
The Celeron 2955U is manufactured by Intel. It was released in 2007-01-01. It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 1.4 GHz, with boost up to 1.4 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,069 points. Launch price was $69.

Celeron 6305
The Celeron 6305 is manufactured by Intel. It was released in 2007-01-01. It is based on the Tiger Lake-U (2020−2021) architecture. It features 2 cores and 2 threads. Max frequency: 1.8 GHz. L3 cache: 4 MB. L2 cache: 2.5 MB. Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 2.5 MB + 4 MB. Memory support: DDR4. Passmark benchmark score: 2,077 points. Launch price was $69.
Processing Power
Both the Celeron 2955U and Celeron 6305 share an identical 2-core/2-thread configuration. Boost clocks reach 1.4 GHz on the Celeron 2955U versus 1.8 GHz on the Celeron 6305 — a 25% clock advantage for the Celeron 6305. The Celeron 2955U uses the Haswell (2013−2015) architecture (22 nm), while the Celeron 6305 uses Tiger Lake-U (2020−2021) (10 nm SuperFin). In PassMark, the Celeron 2955U scores 2,069 against the Celeron 6305's 2,077 — a 0.4% lead for the Celeron 6305. L3 cache: 2 MB (total) on the Celeron 2955U vs 4 MB on the Celeron 6305.
| Feature | Celeron 2955U | Celeron 6305 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.4 GHz | 1.8 GHz+29% |
| Base Clock | 1.4 GHz | — |
| L3 Cache | 2 MB (total) | 4 MB+100% |
| L2 Cache | 256K (per core) | 2.5 MB+900% |
| Process | 22 nm | 10 nm SuperFin-55% |
| Architecture | Haswell (2013−2015) | Tiger Lake-U (2020−2021) |
| PassMark | 2,069 | 2,077 |
| Geekbench 6 Single | — | 744 |
| Geekbench 6 Multi | — | 1,236 |
Memory & Platform
The Celeron 2955U uses the FCBGA1168 socket (PCIe 3.0), while the Celeron 6305 uses FCBGA1449 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1600 on the Celeron 2955U versus DDR4-3200 on the Celeron 6305 — the Celeron 6305 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 6305 supports up to 64 GB of RAM compared to 16 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 10 (Celeron 2955U) vs 4 (Celeron 6305) — the Celeron 2955U offers 6 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Wildcat Point-LP (Celeron 2955U) and Tiger Lake-U (Celeron 6305).
| Feature | Celeron 2955U | Celeron 6305 |
|---|---|---|
| Socket | FCBGA1168 | FCBGA1449 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | DDR3L-1600 | DDR4-3200+33% |
| Max RAM Capacity | 16 GB | 64 GB+300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 10+150% | 4 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x (Celeron 2955U) vs VT-x, VT-d (Celeron 6305). Both include integrated graphics — HD Graphics (Haswell) (Celeron 2955U) and UHD Graphics for 11th Gen (Celeron 6305) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 2955U targets Budget, Celeron 6305 targets Budget. Direct competitor: Celeron 2955U rivals Pentium 2117U; Celeron 6305 rivals Pentium Gold 7505.
| Feature | Celeron 2955U | Celeron 6305 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics (Haswell) | UHD Graphics for 11th Gen |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x | VT-x, VT-d |
| Target Use | Budget | Budget |
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