
Core i7-4940MX vs Atom x7835RE

Core i7-4940MX

Atom x7835RE
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 Core i7-4940MX is positioned at rank 1184 and the Atom x7835RE is on rank 32, so the Atom x7835RE offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-4940MX
Performance Per Dollar Atom x7835RE
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-4940MX | Atom x7835RE |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($127) |
| Longevity | 🛑 Legacy (Haswell (2013−2015) / 22 nm) | ✨ Modern (Amston Lake (2024−2025) / 10 nm) |
💎 Value Proposition
| Insight | Core i7-4940MX | Atom x7835RE |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($127) |
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 Core i7-4940MX and Atom x7835RE

Core i7-4940MX
The Core i7-4940MX is manufactured by Intel. It was released in 20 January 2014 (11 years ago). It is based on the Haswell (2013−2015) architecture. It features 4 cores and 8 threads. Base frequency is 3.1 GHz, with boost up to 4 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: PGA946. Thermal design power (TDP): 57 Watt. Memory support: DDR3. Passmark benchmark score: 6,783 points. Launch price was $1,096.

Atom x7835RE
The Atom x7835RE is manufactured by Intel. It was released in 8 April 2024 (1 year ago). It is based on the Amston Lake (2024−2025) architecture. It features 8 cores and 8 threads. Base frequency is 1.3 GHz, with boost up to 3.6 GHz. L3 cache: 6 MB (total). L2 cache: 2 MB (per module). Built on 10 nm process technology. Socket: FCBGA1264. Thermal design power (TDP): 12 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 6,795 points. Launch price was $127.
Processing Power
The Core i7-4940MX packs 4 cores / 8 threads, while the Atom x7835RE offers 8 cores / 8 threads — the Atom x7835RE has 4 more cores. Boost clocks reach 4 GHz on the Core i7-4940MX versus 3.6 GHz on the Atom x7835RE — a 10.5% clock advantage for the Core i7-4940MX (base: 3.1 GHz vs 1.3 GHz). The Core i7-4940MX uses the Haswell (2013−2015) architecture (22 nm), while the Atom x7835RE uses Amston Lake (2024−2025) (10 nm). In PassMark, the Core i7-4940MX scores 6,783 against the Atom x7835RE's 6,795 — a 0.2% lead for the Atom x7835RE. L3 cache: 8 MB (total) on the Core i7-4940MX vs 6 MB (total) on the Atom x7835RE.
| Feature | Core i7-4940MX | Atom x7835RE |
|---|---|---|
| Cores / Threads | 4 / 8 | 8 / 8+100% |
| Boost Clock | 4 GHz+11% | 3.6 GHz |
| Base Clock | 3.1 GHz+138% | 1.3 GHz |
| L3 Cache | 8 MB (total)+33% | 6 MB (total) |
| L2 Cache | 256K (per core) | 2 MB (per module)+700% |
| Process | 22 nm | 10 nm-55% |
| Architecture | Haswell (2013−2015) | Amston Lake (2024−2025) |
| PassMark | 6,783 | 6,795 |
Memory & Platform
The Core i7-4940MX uses the PGA946 socket (PCIe 3.0), while the Atom x7835RE uses FCBGA1264 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Core i7-4940MX | Atom x7835RE |
|---|---|---|
| Socket | PGA946 | FCBGA1264 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | — | DDR5-4800 |
| Max RAM Capacity | — | 32 GB |
| RAM Channels | — | 1 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 9 |
Advanced Features
The Atom x7835RE includes integrated graphics (Intel UHD Graphics (32EU)), while the Core i7-4940MX requires a dedicated GPU.
| Feature | Core i7-4940MX | Atom x7835RE |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Intel UHD Graphics (32EU) |
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