Core i7-3820
Intel
PassMark
5,787
MSRP
$286
AVG Price
$30
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 i7-3820 is manufactured by Intel. It was released in Fevereiro 2012 (13 years ago). It is based on the Sandy Bridge-E (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 3.8 GHz. L3 cache: 10240 kB (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: 5,787 points. Launch price was $400.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Core i7-3820 is positioned at rank #791 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 i7-3820
FPS Benchmarks
Predicted performance for Core i7-3820 across popular games. Tested paired with RTX 4090 to isolate CPU performance.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Technical Analysis
Detailed breakdown of Core i7-3820 specifications and capabilities.
Processing Power
The Core i7-3820 is a 4-core / 8-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 3.8 GHz from a base frequency of 3.6 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. With a massive 10240 kB (total) L3 cache (3D V-Cache technology), this processor has a significant gaming advantage — the large cache drastically reduces memory latency in game engines., 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 5,787, placing it in the Entry Level performance tier as a Legacy generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 624.
| Specification | Core i7-3820 |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 4C / 8T |
| Max Boost ClockPeak single-core speed under boost | 3.8 GHz |
| Base ClockGuaranteed minimum operating frequency | 3.6 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 | 10240 kB (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 | 294 mm2 |
| Transistor CountMore transistors = more capabilities | 1270 million |
| Bus SpeedData bus frequency | 5 GT/s |
| 64-bit Support | Yes |
| Windows 11 Compatible | No |
| PassMark ScoreOverall multi-threaded benchmark score | 5,787 |
| Geekbench 6 SingleSingle-core performance — most relevant for gaming | 624 |
Memory & Platform
The Core i7-3820 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). Integrated graphics: None — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.
| Specification | Core i7-3820 |
|---|---|
| TypeDesktop or Laptop processor | 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 | None |
| Compatible ChipsetsMotherboard chipsets that support this CPU | X79 |
| Max CPUs in ConfigMulti-socket support for servers | 1 |
Advanced Features
The Core i7-3820 is primarily designed for HEDT Desktop. It features an unlocked multiplier, allowing enthusiasts to overclock beyond stock frequencies for additional performance. Virtualization: VT-x, VT-d, EPT — enables running virtual machines efficiently (important for development and server workloads). Its primary market competitor is the FX-8350.
| Specification | Core i7-3820 |
|---|---|
| Primary Use CaseIntended workload category | HEDT Desktop |
| OverclockingWhether CPU clock can be manually increased | ✅ Unlocked |
| AVX-512Advanced vector instructions for AI/ML workloads | ❌ Not Supported |
| VirtualizationHardware-assisted virtualization technology | VT-x, VT-d, EPT |
| Direct CompetitorMarket equivalent from rival manufacturer | FX-8350 |
Power & Cooling
The Core i7-3820 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. Recommended cooling: Aftermarket.
| Specification | Core i7-3820 |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 130 Watt |
| Included CoolerStock cooler bundled in the box | No |
| Recommended CoolerSuggested aftermarket cooling solution | Aftermarket |
Value Analysis
At an average price of $30 (MSRP: $286), the Core i7-3820 delivers 193 PassMark points per dollar. It currently holds Rank #791 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #1747 out of all indexed processors.
| Specification | Core i7-3820 |
|---|---|
| MSRPManufacturer's Suggested Retail Price | $286 |
| Avg Price (30d)Average market price over the last 30 days | $30 |
| Launch PriceOriginal retail price at launch | $400 |
| Cost-Benefit RankPosition in overall value ranking | #791 |
| Performance RankPosition in overall performance ranking | #1747 |
| Release DateLaunch date | Fevereiro 2012 (13 years ago) |
| Release Year | 2012 |
| DesignerArchitecture designer (e.g. Intel, AMD) | Intel |
Similar Performance
Processors with benchmark scores closest to the current hardware, grouped by manufacturer.
Intel (12)
AMD (12)
Our Recommendation for Core i7-3820
Suggested pairings based on performance balance
Minimum (Avoid Bottleneck) (12)
Recommended (Balanced) (12)
High-End (Max Performance) (12)
Popular Comparisons
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