Core i7-3960X
Intel
PassMark
8,402
MSRP
$999
AVG Price
$60
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.
Overview
The Core i7-3960X is manufactured by Intel. It was released in 14 November 2011 (14 years ago). It is based on the Sandy Bridge-E (2011−2013) architecture. It features 6 cores and 12 threads. Base frequency is 3.3 GHz, with boost up to 3.9 GHz. L3 cache: 15 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 8,402 points. Launch price was $861.
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-3960X
FPS Benchmarks
Predicted performance for Core i7-3960X across popular games. Tested paired with RTX 4090 to isolate CPU performance.
Counter-Strike 2
League of Legends
Path of Exile 2
Valorant
Technical Analysis
Detailed breakdown of Core i7-3960X specifications and capabilities.
Processing Power
The Core i7-3960X is a 6-core / 12-thread processor based on the Sandy Bridge-E (2011−2013) architecture, manufactured on a 32 nm process node. It reaches a maximum boost clock of 3.9 GHz from a base frequency of 3.3 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 15 MB (total) of L3 cache, plus 256 kB (per core) of L2 cache and 64 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 8,402, placing it in the Budget performance tier as a Legacy generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 658, while multi-core reaches 4,973.
| Specification | Core i7-3960X |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 6C / 12T |
| Max Boost ClockPeak single-core speed under boost | 3.9 GHz |
| Base ClockGuaranteed minimum operating frequency | 3.3 GHz |
| ArchitectureCPU microarchitecture design | Sandy Bridge-E (2011−2013) |
| Process NodeFabrication technology — smaller = more efficient | 32 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 15 MB (total) |
| L2 CachePer-core fast cache for frequently accessed data | 256 kB (per core) |
| L1 CacheUltra-fast per-core cache | 64 kB (per core) |
| Die SizePhysical silicon area of the processor | 435 mm2 |
| Transistor CountMore transistors = more capabilities | 2,270 million |
| Bus SpeedData bus frequency | 5 GT/s |
| 64-bit Support | Yes |
| Windows 11 Compatible | No |
| Unlocked MultiplierWhether the CPU can be overclocked | Yes (Overclockable) |
| PassMark ScoreOverall multi-threaded benchmark score | 8,402 |
| Geekbench 6 SingleSingle-core performance — most relevant for gaming | 658 |
| Geekbench 6 MultiMulti-core parallel workload performance | 4,973 |
Memory & Platform
The Core i7-3960X fits into the LGA2011 socket and supports PCIe 2.0 with 40 total PCIe lanes for expansion cards and storage. It supports DDR3 memory at speeds up to DDR3-1600 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 64 GB across 4 channels (dual-channel doubles bandwidth).
| Specification | Core i7-3960X |
|---|---|
| TypeDesktop or Laptop processor | desktop |
| SeriesProduct family | Core i7 (Desktop) |
| SocketMotherboard socket required | LGA2011 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 2.0 |
| PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion | 40 |
| RAM TypeSupported memory standard | DDR3 |
| Max RAM SpeedMaximum officially supported memory frequency | DDR3-1600 |
| Max RAM CapacityMaximum installable memory | 64 GB |
| RAM ChannelsDual-channel doubles bandwidth vs single-channel | 4 |
| ECC SupportError-Correcting Code memory — prevents data corruption | No |
| Integrated GPUBuilt-in graphics processor | No |
| Compatible ChipsetsMotherboard chipsets that support this CPU | X79 |
| Max CPUs in ConfigMulti-socket support for servers | 1 |
Advanced Features
Virtualization: Yes — enables running virtual machines efficiently (important for development and server workloads).
| Specification | Core i7-3960X |
|---|---|
| AVX-512Advanced vector instructions for AI/ML workloads | ❌ Not Supported |
| VirtualizationHardware-assisted virtualization technology | Yes |
Power & Cooling
The Core i7-3960X has a rated TDP (Thermal Design Power) of 130 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately.
| Specification | Core i7-3960X |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 130 Watt |
| Included CoolerStock cooler bundled in the box | No |
Value Analysis
At an average price of $60 (MSRP: $999), the Core i7-3960X delivers 140 PassMark points per dollar. Performance ranking position: #1417 out of all indexed processors.
| Specification | Core i7-3960X |
|---|---|
| MSRPManufacturer's Suggested Retail Price | $999 |
| Avg Price (30d)Average market price over the last 30 days | $60 |
| Launch PriceOriginal retail price at launch | $861 |
| Performance RankPosition in overall performance ranking | #1417 |
| Release DateLaunch date | 14 November 2011 (14 years ago) |
| Release Year | 2011 |
| DesignerArchitecture designer (e.g. Intel, AMD) | Intel |
| ManufacturerFabrication foundry (e.g. TSMC) | Intel |
Similar Performance
Processors with benchmark scores closest to the current hardware, grouped by manufacturer.
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Our Recommendation for Core i7-3960X
Suggested pairings based on performance balance
Minimum (Avoid Bottleneck) (12)
Recommended (Balanced) (12)
High-End (Max Performance) (12)
Popular Comparisons
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Compare Core i7-3960X
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