Core i7-2635QM vs Core i7-975
Core i7-2635QM
Core i7-975
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 i7-2635QM is positioned at rank 1096 and the Core i7-975 is on rank 1084, so the Core i7-975 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-2635QM
Performance Per Dollar Core i7-975
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-2635QM | Core i7-975 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($378) | ✅ More affordable ($50) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Bloomfield (2008−2010) / 45 nm) |
💎 Value Proposition
| Insight | Core i7-2635QM | Core i7-975 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+653%) |
| Upfront Cost | ⚠️ Higher cost ($378) | ✅ More affordable ($50) |
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 i7-2635QM and Core i7-975
Core i7-2635QM
The Core i7-2635QM is manufactured by Intel. It was released in 3 January 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2 GHz, with boost up to 2.9 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: FCBGA1224. Thermal design power (TDP): 45 Watt. Memory support: DDR3-1066, DDR3-1333. Passmark benchmark score: 3,541 points. Launch price was $378.
Core i7-975
The Core i7-975 is manufactured by Intel. It was released in 2 June 2009 (16 years ago). It is based on the Bloomfield (2008−2010) architecture. It features 4 cores and 8 threads. Base frequency is 3.33 GHz, with boost up to 3.6 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 3,527 points. Launch price was $476.
Processing Power
Both the Core i7-2635QM and Core i7-975 share an identical 4-core/8-thread configuration. Boost clocks reach 2.9 GHz on the Core i7-2635QM versus 3.6 GHz on the Core i7-975 — a 21.5% clock advantage for the Core i7-975 (base: 2 GHz vs 3.33 GHz). The Core i7-2635QM uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i7-975 uses Bloomfield (2008−2010) (45 nm). In PassMark, the Core i7-2635QM scores 3,541 against the Core i7-975's 3,527 — a 0.4% lead for the Core i7-2635QM. L3 cache: 6 MB (total) on the Core i7-2635QM vs 8 MB (total) on the Core i7-975.
| Feature | Core i7-2635QM | Core i7-975 |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 8 |
| Boost Clock | 2.9 GHz | 3.6 GHz+24% |
| Base Clock | 2 GHz | 3.33 GHz+67% |
| L3 Cache | 6 MB (total) | 8 MB (total)+33% |
| L2 Cache | 256K (per core) | 256 kB (per core) |
| Process | 32 nm-29% | 45 nm |
| Architecture | Sandy Bridge (2011−2013) | Bloomfield (2008−2010) |
| PassMark | 3,541 | 3,527 |
Memory & Platform
The Core i7-2635QM uses the FCBGA1224 socket (PCIe 2.0), while the Core i7-975 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core i7-2635QM | Core i7-975 |
|---|---|---|
| Socket | FCBGA1224 | LGA1366 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x (Core i7-2635QM) / not specified (Core i7-975). The Core i7-2635QM includes integrated graphics (HD Graphics 3000), while the Core i7-975 requires a dedicated GPU. Primary use case: Core i7-2635QM targets Mobile.
| Feature | Core i7-2635QM | Core i7-975 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | HD Graphics 3000 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Mobile | — |
Value Analysis
The Core i7-2635QM launched at $378 MSRP, while the Core i7-975 debuted at $999.
| Feature | Core i7-2635QM | Core i7-975 |
|---|---|---|
| MSRP | $378-62% | $999 |
| Avg Price (30d) | — | $50 |
| Release Date | 2011 | 2009 |
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