AMD OS6344WKTCGHK 12-Core Opteron 6344 Server Processor

Overview

The AMD OS6344WKTCGHK is a 12-core Opteron 6344 server processor built on AMD's Abu Dhabi core (stepping OR-C0), a 32nm design that slots into Socket G34 platforms. Running at a 2.60 GHz base clock with 16MB of L3 cache and a 6.40 GT/s front-side bus, this part targets multi-socket server refreshes and parts replacements where G34 infrastructure is already sunk cost. It ships as factory-new OEM stock, meaning no retail box or bundled accessories — just the processor, which is the standard condition for this class of server CPU sold into rack and blade deployments.

Key Features

• 12 cores / 12 threads at 2.60 GHz: Opteron 6300-series parts don't use SMT, so every core is a physical thread — useful for workloads (virtualization hosts, batch processing) where predictable per-core throughput matters more than burst clock speed.
• 16MB L3 cache: a large shared cache pool reduces main-memory round trips on multi-threaded workloads, which helps keep 12 cores fed without the front-side bus becoming the bottleneck.
• 6.40 GT/s front-side bus: sets the ceiling for inter-socket and memory-controller communication on G34 boards — relevant if you're pairing this with other Opteron 6300-series CPUs in a dual- or quad-socket chassis.
• 32nm Abu Dhabi core (stepping OR-C0): AMD's die-shrink refresh of the Interlagos-generation Opteron design, delivering better performance-per-watt than the prior 6200 series at the same socket.
• 115W thermal power: confirm your chassis cooling and power delivery are rated for this TDP before dropping it into an existing G34 server — undersized heatsinks or airflow will throttle the part under sustained load.
• Socket G34: drop-in compatible with existing G34 motherboards and coolers, which makes this a straightforward swap for extending the service life of a server platform you already have qualified and racked.
• OEM condition: sourced as a bare processor rather than a retail-boxed unit — the expected format for volume server CPU replacement and system-builder channels.

Integration & Compatibility

The OS6344WKTCGHK requires a Socket G34 motherboard — this is not compatible with Socket C32 or later Socket G34r2/G34r3 variants without BIOS support for the Abu Dhabi core, so confirm your board's supported CPU list before ordering. Because this is a multi-socket-capable Opteron, it's a fit for dual- and quad-socket server chassis running virtualization hosts, database servers, or render/compute nodes where core count outweighs single-thread clock speed. If you're weighing this against other options in AMD's AMD processor catalog, the 6344 sits in the mid-tier of the 6300 series on clock speed and core count — worth checking against a higher-clocked or higher-core-count 6300-series part if your workload is more clock-sensitive than core-count-sensitive. For buyers planning a broader server refresh, pairing CPU upgrades with a look at available server systems and compatible server memory can help sequence the project so the platform isn't bottlenecked elsewhere. A guide on planning a server CPU upgrade is useful context if this is replacing a failed or underperforming socket rather than a new build. Also consider power supplies sized for the added thermal and electrical load when populating additional sockets.

What's in the Box

1x AMD Opteron 6344 processor (OS6344WKTCGHK), OEM condition — no heatsink, fan, or retail packaging included.

Frequently Asked Questions

Q: What socket does the AMD OS6344WKTCGHK use?

A: Socket G34. Confirm your motherboard supports the Abu Dhabi core (stepping OR-C0) before installing.

Q: How many cores and threads does the Opteron 6344 have?

A: 12 cores and 12 threads, with no simultaneous multithreading on this Opteron generation.

Q: What is the thermal design power of the OS6344WKTCGHK?

A: 115 Watts. Verify your chassis cooling solution is rated to handle this TDP under sustained load.

Q: Does the OS6344WKTCGHK come with a heatsink or fan?

A: No. This is an OEM processor only, without bundled cooling hardware or retail packaging.

Q: What is the warranty on the OS6344WKTCGHK?

A: 21 days standard warranty on this OEM unit.

Q: How much cache does the Opteron 6344 have?

A: 16MB of L3 cache, shared across the 12 cores.

Karl Wilson

The OS6344WKTCGHK is a 12-core Opteron 6344 running the Abu Dhabi core at 2.60 GHz, and it's a part I see requested specifically for keeping G34 platforms in service rather than for new builds — the socket is legacy at this point, so this is almost always a replacement or expansion buy.

Technical Highlights:

• 12 cores / 12 threads: no SMT on this generation, so every thread is a real core — predictable scaling for virtualization hosts running many light VMs rather than a few heavy ones.
• 16MB L3 cache: a sizable shared pool that reduces memory latency stalls when all 12 cores are active simultaneously, which matters more on this part than clock speed alone.
• 115W TDP: mid-pack for the 6300 series — check your existing G34 chassis airflow budget before populating a socket that was previously running a lower-wattage part.

Deployment Considerations:

• This is Socket G34 only — it will not fit later AMD server sockets, so verify your motherboard's supported CPU list (specifically for Abu Dhabi / OR-C0 stepping support) before ordering.
• OEM condition means no heatsink, fan, or retail box — budget for compatible G34 cooling separately if you don't already have a heatsink pulled from a donor system.

I'd point this at shops running dual- or quad-socket G34 virtualization hosts that need to add core count without a full platform migration — it's a sensible bridge part while a longer-term move to a current-generation socket gets planned.