A6-6400K
AMD
PassMark
1,511
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 A6-6400K is manufactured by AMD. It was released in 2014-01-01. It is based on the Richland (2013−2014) architecture. It features 2 cores and 2 threads. Base frequency is 3.9 GHz, with boost up to 4.1 GHz. L3 cache: 0 kB. L2 cache: 1024 kB. Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 65 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,511 points. Launch price was $70.
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
FPS Benchmarks
Predicted performance for A6-6400K across popular games. Tested paired with RTX 4090 to isolate CPU performance.
Call of Duty: Black Ops 6
Counter-Strike 2
Cyberpunk 2077
Dota 2
League of Legends
Path of Exile 2
Project Zomboid
PUBG: BATTLEGROUNDS
Rainbow Six Siege
Red Dead Redemption 2
Technical Analysis
Detailed breakdown of A6-6400K specifications and capabilities.
Processing Power
The A6-6400K is a 2-core / 2-thread processor based on the Richland (2013−2014) architecture, manufactured on a 32 nm process node. It reaches a maximum boost clock of 4.1 GHz from a base frequency of 3.9 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 0 kB of L3 cache, plus 1024 kB of L2 cache and 96 kB of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 1,511, placing it in the Entry Level performance tier as a Legacy generation product.
| Specification | A6-6400K |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 2C / 2T |
| Max Boost ClockPeak single-core speed under boost | 4.1 GHz |
| Base ClockGuaranteed minimum operating frequency | 3.9 GHz |
| ArchitectureCPU microarchitecture design | Richland (2013−2014) |
| Process NodeFabrication technology — smaller = more efficient | 32 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 0 kB |
| L2 CachePer-core fast cache for frequently accessed data | 1024 kB |
| L1 CacheUltra-fast per-core cache | 96 kB |
| Die SizePhysical silicon area of the processor | 246 mm2 |
| Transistor CountMore transistors = more capabilities | 1,178 million |
| Max TemperatureMaximum safe operating temperature (Tjmax) | 70 °C |
| 64-bit Support | Yes |
| Windows 11 Compatible | No |
| Unlocked MultiplierWhether the CPU can be overclocked | Yes (Overclockable) |
| PassMark ScoreOverall multi-threaded benchmark score | 1,511 |
Memory & Platform
The A6-6400K fits into the FM2 socket and supports PCIe 3.0 with 16 total PCIe lanes for expansion cards and storage. It supports DDR3-1866 memory at speeds up to 1866 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 32 across 2 channels (dual-channel doubles bandwidth). Integrated graphics: Radeon HD 8470D — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.
| Specification | A6-6400K |
|---|---|
| TypeDesktop or Laptop processor | desktop |
| SeriesProduct family | AMD A-Series (Desktop) |
| SocketMotherboard socket required | FM2 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 3.0 |
| PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion | 16 |
| RAM TypeSupported memory standard | DDR3-1866 |
| Max RAM SpeedMaximum officially supported memory frequency | 1866 |
| Max RAM CapacityMaximum installable memory | 32 |
| RAM ChannelsDual-channel doubles bandwidth vs single-channel | 2 |
| ECC SupportError-Correcting Code memory — prevents data corruption | No |
| Integrated GPUBuilt-in graphics processor | Radeon HD 8470D |
| Compatible ChipsetsMotherboard chipsets that support this CPU | FM2 |
| Max CPUs in ConfigMulti-socket support for servers | 1 |
Advanced Features
It features an unlocked multiplier, allowing enthusiasts to overclock beyond stock frequencies for additional performance. Virtualization: true — enables running virtual machines efficiently (important for development and server workloads). Its primary market competitor is the Pentium G3258.
| Specification | A6-6400K |
|---|---|
| OverclockingWhether CPU clock can be manually increased | ✅ Unlocked |
| AVX-512Advanced vector instructions for AI/ML workloads | ❌ Not Supported |
| VirtualizationHardware-assisted virtualization technology | true |
| Direct CompetitorMarket equivalent from rival manufacturer | Pentium G3258 |
Power & Cooling
The A6-6400K has a rated TDP (Thermal Design Power) of 65 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. It ships with the true stock cooler. Recommended cooling: Stock Cooler.
| Specification | A6-6400K |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 65 Watt |
| Max TemperatureMaximum safe junction temperature (Tjmax) | 70 °C |
| Included CoolerStock cooler bundled in the box | true |
| Recommended CoolerSuggested aftermarket cooling solution | Stock Cooler |
Value Analysis
Performance ranking position: #2798 out of all indexed processors.
| Specification | A6-6400K |
|---|---|
| Launch PriceOriginal retail price at launch | $70 |
| Performance RankPosition in overall performance ranking | #2798 |
| Release DateLaunch date | 2014-01-01 |
| Release Year | 2013 |
| DesignerArchitecture designer (e.g. Intel, AMD) | AMD |
Specifications Reference
Raw spec sheet for quick lookup. The analysis cards above explain what these fields mean in practice.
4 categories
General Information
7 specs
General Information
7 specs
| Type | desktop |
| Series | AMD A-Series (Desktop) |
| Designer | AMD |
| Launch Price | $70 |
| Release Date | 2014-01-01 |
| Architecture Codename | Richland (2013−2014) |
| Performance Ranking Position | 2798 |
Technical Specifications
15 specs
Technical Specifications
15 specs
| Cores | 2 |
| Threads | 2 |
| Die Size | 246 mm2 |
| L1 Cache | 96 kB |
| L2 Cache | 1024 kB |
| L3 Cache | 0 kB |
| Max Frequency | 4.1 GHz |
| 64-Bit Support | + |
| Base Frequency | 3.9 GHz |
| Transistor Count | 1,178 million |
| Process Technology | 32 nm |
| Unlocked Multiplier | + |
| Max Core Temperature | 70 °C |
| Windows 11 Compatible | - |
| Max Case Temperature (TCase) | 70 °C |
Compatibility
4 specs
Compatibility
4 specs
| Socket | FM2 |
| PCIe Generation | PCIe 3.0 |
| Power Consumption (TDP) | 65 Watt |
| Max Processors In Config | 1 |
Memory
2 specs
Memory
2 specs
| RAM Types | DDR3-1866 |
| Memory Channels | 2 |
Similar Performance
Processors with benchmark scores closest to the current hardware, grouped by manufacturer.
Intel (8)
AMD (8)
Our Recommendation for A6-6400K
Suggested pairings based on performance balance
Minimum (Avoid Bottleneck) (12)
Recommended (Balanced) (12)
High-End (Max Performance) (12)
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