CPU
GPU
Atom x5-Z8550
Pentium G640T
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 Atom x5-Z8550 is positioned at rank 723 and the Pentium G640T is on rank 848, so the Atom x5-Z8550 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom x5-Z8550
Performance Per Dollar Pentium G640T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom x5-Z8550 | Pentium G640T |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($69) |
| Longevity | 🛑 Legacy (Cherry Trail (2015−2016) / 14 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Atom x5-Z8550 | Pentium G640T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($69) |
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 Atom x5-Z8550 and Pentium G640T
Atom x5-Z8550
The Atom x5-Z8550 is manufactured by Intel. It was released in 8 February 2016 (9 years ago). It is based on the Cherry Trail (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 1.44 GHz, with boost up to 2.4 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: UTFCBGA1380. Memory support: DDR3. Passmark benchmark score: 1,143 points. Launch price was $69.
Pentium G640T
The Pentium G640T is manufactured by Intel. It was released in 2007-01-01. It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,139 points. Launch price was $69.
Processing Power
The Atom x5-Z8550 packs 4 cores / 4 threads, while the Pentium G640T offers 2 cores / 2 threads — the Atom x5-Z8550 has 2 more cores. Boost clocks reach 2.4 GHz on the Atom x5-Z8550 versus 2.4 GHz on the Pentium G640T — identical boost frequencies (base: 1.44 GHz vs 2.4 GHz). The Atom x5-Z8550 uses the Cherry Trail (2015−2016) architecture (14 nm), while the Pentium G640T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Atom x5-Z8550 scores 1,143 against the Pentium G640T's 1,139 — a 0.4% lead for the Atom x5-Z8550. L3 cache: 0 kB on the Atom x5-Z8550 vs 3 MB (total) on the Pentium G640T.
| Feature | Atom x5-Z8550 | Pentium G640T |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 2.4 GHz | 2.4 GHz |
| Base Clock | 1.44 GHz | 2.4 GHz+67% |
| L3 Cache | 0 kB | 3 MB (total) |
| L2 Cache | 2 MB+700% | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Cherry Trail (2015−2016) | Sandy Bridge (2011−2013) |
| PassMark | 1,143 | 1,139 |
Memory & Platform
The Atom x5-Z8550 uses the UTFCBGA1380 socket (PCIe 3.0), while the Pentium G640T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Atom x5-Z8550 | Pentium G640T |
|---|---|---|
| Socket | UTFCBGA1380 | LGA1155 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | LPDDR3-1600 | — |
| Max RAM Capacity | 8 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 2 | — |
Advanced Features
The Atom x5-Z8550 includes integrated graphics (Intel HD Graphics (Cherry Trail)), while the Pentium G640T requires a dedicated GPU.
| Feature | Atom x5-Z8550 | Pentium G640T |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel HD Graphics (Cherry Trail) | — |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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