Core i7-975 vs Phenom II X6 1075T
Core i7-975
Phenom II X6 1075T
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 i7-975 is positioned at rank 1084 and the Phenom II X6 1075T is on rank 145, so the Phenom II X6 1075T offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-975
Performance Per Dollar Phenom II X6 1075T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-975 | Phenom II X6 1075T |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($50) | ⚠️ Higher cost ($245) |
| Longevity | 🛑 Legacy (Bloomfield (2008−2010) / 45 nm) | 🛑 Legacy (Thuban (2010) / 45 nm) |
💎 Value Proposition
| Insight | Core i7-975 | Phenom II X6 1075T |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+394%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($50) | ⚠️ Higher cost ($245) |
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 i7-975 and Phenom II X6 1075T
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.
Phenom II X6 1075T
The Phenom II X6 1075T is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Thuban (2010) architecture. It features 6 cores and 6 threads. Base frequency is 3 GHz, with boost up to 3.5 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 125 Watt. Memory support: DDR3. Passmark benchmark score: 3,500 points. Launch price was $260.
Processing Power
The Core i7-975 packs 4 cores / 8 threads, while the Phenom II X6 1075T offers 6 cores / 6 threads — the Phenom II X6 1075T has 2 more cores. Boost clocks reach 3.6 GHz on the Core i7-975 versus 3.5 GHz on the Phenom II X6 1075T — a 2.8% clock advantage for the Core i7-975 (base: 3.33 GHz vs 3 GHz). The Core i7-975 uses the Bloomfield (2008−2010) architecture (45 nm), while the Phenom II X6 1075T uses Thuban (2010) (45 nm). In PassMark, the Core i7-975 scores 3,527 against the Phenom II X6 1075T's 3,500 — a 0.8% lead for the Core i7-975. L3 cache: 8 MB (total) on the Core i7-975 vs 6 MB (total) on the Phenom II X6 1075T.
| Feature | Core i7-975 | Phenom II X6 1075T |
|---|---|---|
| Cores / Threads | 4 / 8 | 6 / 6+50% |
| Boost Clock | 3.6 GHz+3% | 3.5 GHz |
| Base Clock | 3.33 GHz+11% | 3 GHz |
| L3 Cache | 8 MB (total)+33% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 512 kB (per core)+100% |
| Process | 45 nm | 45 nm |
| Architecture | Bloomfield (2008−2010) | Thuban (2010) |
| PassMark | 3,527 | 3,500 |
| Cinebench R23 Multi | — | 1,896 |
| Geekbench 6 Single | — | 679 |
| Geekbench 6 Multi | — | 1,960 |
Memory & Platform
The Core i7-975 uses the LGA1366 socket (PCIe 2.0), while the Phenom II X6 1075T uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core i7-975 | Phenom II X6 1075T |
|---|---|---|
| Socket | LGA1366 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1333 |
| Max RAM Capacity | — | 32 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Core i7-975) / AMD-V (Phenom II X6 1075T). Primary use case: Phenom II X6 1075T targets Gaming. Direct competitor: Phenom II X6 1075T rivals Core i5-750.
| Feature | Core i7-975 | Phenom II X6 1075T |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Gaming |
Value Analysis
The Core i7-975 launched at $999 MSRP, while the Phenom II X6 1075T debuted at $245.
| Feature | Core i7-975 | Phenom II X6 1075T |
|---|---|---|
| MSRP | $999 | $245-75% |
| Avg Price (30d) | $50 | — |
| Release Date | 2009 | 2010 |
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