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AMD Ryzen 9 5900X processor in green ceramic package with gold contacts

AMD

AMD Ryzen 9 5900X OEM desktop processor

SKU CH-5RQH-616EE

12-core AM4 desktop CPU with 24 threads, 3.7 GHz base and 4.8 GHz boost, 64 MB L3 cache, DDR4-3200 support and 105 W TDP

  • Product nameRyzen 9 5900X
  • CPU cores12-Core
  • CPU socketSocket AM4
  • Maximum turbo clock4.8 GHz
  • TDP rating105 W
  • Processor classDesktop
  • 12 cores and 24 threads handle heavy multitasking with ease
  • 8 GHz max turbo frequency accelerates single-thread workloads
  • 64 MB L3 cache reduces latency for large data sets
  • 105 W TDP balances performance and thermal headroom
  • DDR4 3200 support delivers high memory bandwidth

12-Core Zen 3 Processor for AM4

The AMD Ryzen 9 5900X is a 12-core, 24-thread desktop CPU built on the 7nm Zen 3 architecture for Socket AM4. It targets content creators, developers and enthusiasts who need strong multi-threaded throughput without moving to a new platform. A discrete graphics card is required as the chip has no integrated graphics.

64MB L3 Cache and 4.8 GHz Boost Headroom

The processor ships with a 3.7 GHz base clock and a 4.8 GHz max turbo frequency, backed by 64MB of L3 cache and 6MB of L2 cache. This combination handles heavy rendering, compilation and simultaneous workloads comfortably. The 105W TDP marks the thermal ceiling where sustained all-core speeds will level off under standard cooling.

DDR4 3200 Memory Interface Limits

The memory controller officially supports DDR4 3200, setting the practical bandwidth boundary for the platform. Faster kits can run via motherboard profiles, but the CPU's guaranteed specification stops at 3200 MT/s. Windows 11 is the supported operating system for this Socket AM4 processor.

How it compares

Measured against everything we stock in Desktop Processors, at today’s prices. Recalculated every night.

Price $214.99
Pricier than about 63% of the 494 comparable items (median $149.99).
CPU cores 12-Core
Higher than about 60% of the 271 comparable items (median 8).
Maximum turbo clock 4.8 GHz
Higher than about 55% of the 246 comparable items (median 4.7 GHz).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameAMD
Product lineRyzen 9 5000 Series
Product nameRyzen 9 5900X
Performance
Working frequency3.7 GHz
Processor
CPU cores12-Core
CPU socketSocket AM4
Maximum turbo clock4.8 GHz
TDP rating105 W
Processor classDesktop
CPU threads24-Threads
Level 2 cache6 MB
Level 3 cache64 MB
Process node7 nm
Memory
Supported memoryDDR4 3200
Graphics
Built-in graphicsNone Integrated Graphics
Compatibility
Compatible systemsWindows 11

Questions about this item

Will the Ryzen 9 5900X fit my existing Socket AM4 motherboard?

Yes, the processor uses the Socket AM4 interface, so it will physically install in any AM4 board; you may need a BIOS update for full support.

How can I confirm the 12-core CPU is running at its 4.8 GHz max turbo after installation?

Open Task Manager or a monitoring tool such as HWMonitor and run a single-threaded load; the reported clock should reach 4.8 GHz if thermal and power limits allow.

The listing says OEM with no box — what exactly ships and what must I supply?

Only the processor itself is included; you must provide a compatible AM4 cooler, thermal paste, and a motherboard with DDR4 memory.

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