AMD OS6328WKT8GHK 8-Core Socket G34 Server Processor

Overview

The AMD OS6328WKT8GHK is an Opteron 6328 server processor built for Socket G34 platforms that need dense multi-threaded core count without moving to a new socket generation. This is an 8-core part clocked at 3.2GHz, built on AMD's 32nm process, and packaged as an OEM unboxed CPU — the tray-style unit datacenter and server integrators use to populate or refresh existing G34 boards rather than buy a full new system. If you're maintaining a fleet of G34-based servers (Opteron 6300 series platforms), OS6328WKT8GHK is a straightforward drop-in upgrade path for adding core count to an existing chassis.

Key Features

• 8-Core / 3.2GHz: Eight physical cores at a 3.2GHz base clock give you real parallel throughput for virtualization hosts, batch processing, or multi-VM workloads where core count matters more than single-thread peak speed.
• Socket G34: Built specifically for the G34 socket footprint — this only works in motherboards designed for the Opteron 6200/6300 series, so confirm your board's socket revision before ordering.
• 16MB L3 Cache / 8MB L2 Cache: A 16MB shared L3 plus 8MB of L2 reduces trips to main memory on cache-heavy workloads, which keeps multi-VM and database-adjacent tasks from stalling on memory latency.
• 3200MHz Memory Speed Support: The memory controller is rated to run paired DIMMs up to 3200MHz, so you're not capping out a fast memory kit on an older CPU.
• 6.4GT/s HyperTransport Link: The HT3 link speed of 6.4GT/s sets the ceiling for inter-socket and I/O bandwidth on multi-socket G34 boards — relevant if you're running this in a 2P or 4P configuration.
• 1944-Pin Package: Matches the G34 socket pin count exactly, so mechanical fit is a non-issue as long as the board is G34.
• 32nm Manufacturing Process: A mature, well-characterized process node — these chips have years of field deployment behind them, which matters for buyers stocking spares for known-stable platforms rather than chasing new silicon.
• 115W TDP: A 115W thermal envelope is moderate for an 8-core part in this generation, so existing G34 heatsink and airflow provisioning that supported similar Opteron 6300-series chips should carry over without a cooling redesign.

Integration & Compatibility

OS6328WKT8GHK drops into any server motherboard built around the Socket G34 platform — the same socket used across the Opteron 6200 and 6300 families. Before ordering, verify your board's BIOS has a compatible microcode revision for the 6328; G34 boards spanned multiple Opteron generations and older BIOS versions sometimes need an update to recognize newer steppings. This is sold as an OEM unboxed CPU, meaning it ships as a bare tray processor — plan on sourcing your own heatsink/fan assembly if you don't already have compatible G34 cooling on hand from the unit you're replacing or upgrading. For buyers researching server motherboards or evaluating server accessories to round out a refresh, confirm socket and TDP headroom together before committing to a bulk order.

Frequently Asked Questions

Q: What socket does the OS6328WKT8GHK use?

A: Socket G34, the 1944-pin platform used across AMD's Opteron 6200 and 6300 series server processors.

Q: What's the core count and clock speed on the OS6328WKT8GHK?

A: Eight cores at a 3.2GHz base clock speed.

Q: Does the OS6328WKT8GHK come with a heatsink or fan?

A: No — this is sold as an OEM unboxed CPU, a bare tray processor without a bundled cooling solution.

Q: What's the warranty on the OS6328WKT8GHK?

A: It carries a 30-day return warranty as a New-condition OEM unboxed unit.

Q: How much cache does the OS6328WKT8GHK have?

A: 8MB of L2 cache and 16MB of L3 cache.

Q: What's the TDP of the OS6328WKT8GHK?

A: 115W.

Jerry Tildsen

The OS6328WKT8GHK is one of the parts I point people toward when they're extending the life of a G34 fleet rather than forklifting to new hardware. Eight cores at 3.2GHz on the Opteron 6328 with a 115W TDP is a solid middle ground — you get real core density without pushing thermals past what existing G34 heatsinks were speced for.

Technical Highlights:

• 16MB L3 / 8MB L2 cache: that's a meaningful cache pool for an 8-core part from this generation — it cuts down memory round-trips on workloads running several VMs per socket.
• 6.4GT/s HyperTransport link: sets your inter-socket bandwidth ceiling in 2P/4P G34 boards, so factor it in if you're running this alongside other 6300-series chips in a multi-socket chassis.
• 3200MHz memory controller support: lets you run faster DIMM kits without the CPU being the bottleneck, useful if you're refreshing memory at the same time as the CPU.

Deployment Considerations:

• This ships OEM unboxed — no heatsink, no fan, no retail packaging. Reuse your existing G34 cooling hardware or source it separately before install.
• Double-check your motherboard's BIOS microcode support for the 6328 stepping before racking it — G34 boards spanned multiple Opteron generations and some older BIOS revisions need an update first.

I'd spec the OS6328WKT8GHK for a shop maintaining an existing Opteron 6300-series server fleet who needs to swap in a known-stable 8-core part without touching the motherboard or chassis — not for a greenfield build, where you'd be better served starting on a current socket platform.