AMD OS6338WQTCGHKWOF Opteron 6338P 12-Core Socket G34 Server Processor

Overview

The AMD OS6338WQTCGHKWOF is a 12-core Opteron 6338P server processor built on AMD's 32nm process and designed for Socket G34 multi-socket server platforms. Running at a 2.30GHz base clock with a 2.80GHz turbo ceiling, this chip targets legacy and refresh deployments where dense core counts across multiple physical sockets still matter — virtualization hosts, render nodes, and older blade or rackmount chassis built around the G34 platform. This particular unit ships without a fan (WOF designation), so plan your own cooling solution before rack-mounting. At a 99W thermal design power, the OS6338WQTCGHKWOF sits in a manageable thermal envelope for a 12-core part of its era, which matters when you're populating a 2P or 4P G34 motherboard and stacking heat load across sockets.

Key Features

• 12-Core Design: Twelve physical cores per socket means this part scales well in dual- and quad-socket G34 boards for workloads that parallelize cleanly — batch processing, virtualization hosts running many lightweight VMs, or render farms where core count outweighs single-thread speed.
• 2.30GHz Base Clock: A 2.30GHz base frequency keeps sustained multi-core workloads running predictably without the thermal spikes you'd see chasing higher clocks across twelve cores at once.
• 2.80GHz Max Turbo: The 2.80GHz overclocking speed gives lightly-threaded tasks a burst above base clock when only a few cores are active, useful for mixed workloads that alternate between parallel batch jobs and quick single-thread operations.
• 3200MHz HyperTransport: The 3200MHz HyperTransport link speed governs how fast this chip talks to other sockets and I/O in a multi-socket G34 board — a real factor in NUMA-sensitive workloads like databases or hypervisors moving data across sockets.
• 16MB L3 Cache: A shared 16MB L3 cache reduces trips to system memory for working sets that don't fit in per-core L2, which keeps twelve cores fed without saturating memory bandwidth under mixed workloads.
• 12MB L2 Cache: 12MB of L2 cache spread across the core complex cuts latency for per-core working sets, helping virtualized workloads that each expect fast, predictable memory access.
• 576KB L1 Cache: Fast L1 cache close to each core handles the tightest-loop instructions and data with minimal latency, which matters for any thread doing repetitive tight-loop work.
• 32nm Process Technology: The 32nm fabrication node is what allows AMD to pack twelve cores into a single Socket G34 package while keeping the 99W TDP in check relative to core count.
• Socket G34 Platform: Socket G34 compatibility means this processor drops into existing G34 dual- and quad-socket motherboards for a core-count upgrade or like-for-like replacement without a platform swap.

Integration & Compatibility

The OS6338WQTCGHKWOF is built specifically for Socket G34 motherboards — confirm your board's supported Opteron 6300-series list before ordering, since G34 boards vary in which steppings and TDP ranges they support in BIOS. Because this is the WOF (without fan) variant, you need a compatible G34 heatsink and fan assembly rated for a 99W TDP part; it will not include cooling out of the box. If you're planning a multi-socket build, HyperTransport link speed and NUMA topology across sockets are worth mapping out with your board's manual before populating all sockets with this part.

Frequently Asked Questions

Q: Does the OS6338WQTCGHKWOF include a cooling fan?

A: No. The WOF designation means this unit ships without a fan or heatsink — you'll need a Socket G34-compatible cooling solution rated for a 99W TDP processor.

Q: What socket does the OS6338WQTCGHKWOF use?

A: Socket G34. Confirm your motherboard's supported CPU list before ordering, since G34 boards vary in which Opteron 6300-series parts they support.

Q: How many cores does the OS6338WQTCGHKWOF have?

A: Twelve physical cores, with a 2.30GHz base clock and a 2.80GHz maximum turbo speed.

Q: What is the thermal design power of the OS6338WQTCGHKWOF?

A: 99W TDP.

Q: How much cache does the OS6338WQTCGHKWOF have?

A: 576KB L1, 12MB L2, and 16MB L3 cache.

Marty Allison

The OS6338WQTCGHKWOF is a 12-core Opteron 6338P — I get asked about this part mainly from teams keeping a Socket G34 platform alive for one more refresh cycle rather than doing a full rebuild. Twelve cores at a 2.30GHz base and 2.80GHz turbo is a specific tradeoff: you're buying core density, not per-core speed.

Technical Highlights:

• 16MB L3 / 12MB L2 cache: that's a meaningful cache hierarchy for a 12-core part — it keeps memory-bound virtualization workloads from constantly round-tripping to system RAM.
• 3200MHz HyperTransport: in a 2P or 4P G34 build, this is the number that determines how well NUMA-aware workloads perform across sockets — worth checking against your board's topology.
• 99W TDP at 12 cores: a reasonable thermal envelope for the core count, but remember this is the WOF SKU — no fan included, so budget for a G34-rated cooler before you rack it.

Deployment Considerations:

• Verify your specific G34 motherboard's supported-CPU list and BIOS/firmware revision before buying — not every G34 board supports every Opteron 6300-series stepping.
• Because this is the without-fan variant, factor a compatible heatsink/fan assembly into your build cost and lead time — it won't show up if you assume the box includes cooling.

This part fits a narrow, specific use case: extending the life of an existing multi-socket G34 server fleet with a core-count bump, not a greenfield build. If you're speccing new infrastructure today, this isn't the platform to start from — but for a G34 shop needing a drop-in replacement or capacity add, the OS6338WQTCGHKWOF does the job.