Core i7-7800X vs Core i7-3970X Extreme Edition
Core i7-7800X
Core i7-3970X Extreme Edition
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 i7-7800X is positioned at rank 551 and the Core i7-3970X Extreme Edition is on rank 943, so the Core i7-7800X offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-7800X
Performance Per Dollar Core i7-3970X Extreme Edition
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-7800X | Core i7-3970X Extreme Edition |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($254) | ✅ More affordable ($175) |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core i7-7800X | Core i7-3970X Extreme Edition |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+44%) |
| Upfront Cost | ⚠️ Higher cost ($254) | ✅ More affordable ($175) |
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 i7-7800X and Core i7-3970X Extreme Edition
Core i7-7800X
The Core i7-7800X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4 GHz. L3 cache: 8.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2400. Passmark benchmark score: 12,963 points. Launch price was $383.
Core i7-3970X Extreme Edition
The Core i7-3970X Extreme Edition is manufactured by Intel. It was released in 12 November 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 6 cores and 12 threads. Max frequency: 3.5 GHz. L3 cache: 15 MB. L2 cache: 1,536 kB. Built on 32 nm process technology. Socket: FCLGA2011. Thermal design power (TDP): 150 Watt. Memory support: DDR3-1600. Passmark benchmark score: 12,900 points. Launch price was $149.
Processing Power
Both the Core i7-7800X and Core i7-3970X Extreme Edition share an identical 6-core/12-thread configuration. Boost clocks reach 4 GHz on the Core i7-7800X versus 3.5 GHz on the Core i7-3970X Extreme Edition — a 13.3% clock advantage for the Core i7-7800X. The Core i7-7800X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Core i7-3970X Extreme Edition uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i7-7800X scores 12,963 against the Core i7-3970X Extreme Edition's 12,900 — a 0.5% lead for the Core i7-7800X. Geekbench 6 single-core — the metric most relevant to gaming — records 1,114 vs 742, a 40.1% lead for the Core i7-7800X that directly translates to higher frame rates. L3 cache: 8.25 MB (total) on the Core i7-7800X vs 15 MB on the Core i7-3970X Extreme Edition.
| Feature | Core i7-7800X | Core i7-3970X Extreme Edition |
|---|---|---|
| Cores / Threads | 6 / 12 | 6 / 12 |
| Boost Clock | 4 GHz+14% | 3.5 GHz |
| Base Clock | 3.5 GHz | — |
| L3 Cache | 8.25 MB (total) | 15 MB+82% |
| L2 Cache | 1 MB (per core) | 1,536 kB+50% |
| Process | 14 nm-56% | 32 nm |
| Architecture | Skylake (server) (2017−2018) | Sandy Bridge (2011−2013) |
| PassMark | 12,963 | 12,900 |
| Cinebench R23 Multi | 6,897 | — |
| Geekbench 6 Single | 1,114+50% | 742 |
| Geekbench 6 Multi | 6,951 | — |
Memory & Platform
The Core i7-7800X uses the LGA2066 socket (PCIe 3.0), while the Core i7-3970X Extreme Edition uses FCLGA2011 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Core i7-7800X versus DDR3-1600 on the Core i7-3970X Extreme Edition — the Core i7-7800X supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-7800X supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 4-channel memory with ECC support. PCIe lanes: 28 (Core i7-7800X) vs 40 (Core i7-3970X Extreme Edition) — the Core i7-3970X Extreme Edition offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X299 (Core i7-7800X) and X79 (Core i7-3970X Extreme Edition).
| Feature | Core i7-7800X | Core i7-3970X Extreme Edition |
|---|---|---|
| Socket | LGA2066 | FCLGA2011 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2400+33% | DDR3-1600 |
| Max RAM Capacity | 128 GB+100% | 64 GB |
| RAM Channels | 4 | 4 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 28 | 40+43% |
Advanced Features
Only the Core i7-7800X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: Yes (Core i7-7800X) vs VT-x, VT-d, EPT (Core i7-3970X Extreme Edition). Primary use case: Core i7-3970X Extreme Edition targets HEDT Desktop. Direct competitor: Core i7-3970X Extreme Edition rivals FX-9590.
| Feature | Core i7-7800X | Core i7-3970X Extreme Edition |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | — | None |
| Unlocked | — | Yes |
| AVX-512 | Yes | No |
| Virtualization | Yes | VT-x, VT-d, EPT |
| Target Use | — | HEDT Desktop |
Value Analysis
The Core i7-7800X launched at $383 MSRP, while the Core i7-3970X Extreme Edition debuted at $990. At current prices ($254 vs $175), the Core i7-3970X Extreme Edition is $79 cheaper. In terms of value (PassMark points per dollar), the Core i7-7800X delivers 51.0 pts/$ vs 73.7 pts/$ for the Core i7-3970X Extreme Edition — making the Core i7-3970X Extreme Edition the 36.4% better value option.
| Feature | Core i7-7800X | Core i7-3970X Extreme Edition |
|---|---|---|
| MSRP | $383-61% | $990 |
| Avg Price (30d) | $254 | $175-31% |
| Performance per Dollar | 51.0 | 73.7+45% |
| Release Date | 2017 | 2012 |
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