Quick Verdict
A highly capable 32-core workstation processor with strong per-core performance and massive I/O, ideal for professionals who need many PCIe lanes and eight-channel memory, though high power draw and platform cost require careful planning.
Overview
Launch
2025
Status
LaunchedGeneration
Zen 5 (Threadripper PRO 9000 WX-Series)
Market
Workstation
The AMD Ryzen Threadripper PRO 9975WX is a 32-core, 64-thread workstation processor built on the Zen 5 architecture, featuring eight-channel DDR5 memory, 128 PCIe 5.0 lanes, and a 350 W TDP for professional workloads.
The Ryzen Threadripper PRO 9975WX combines 32 Zen 5 cores with 64 threads, up to 5.4 GHz boost, 128 MB of L3 cache, eight DDR5 memory channels (up to 6400 MT/s), and 128 usable PCIe 5.0 lanes, targeting heavy multitasking and GPU-heavy workflows in pro workstations.
Specifications
Performance
High multi-thread throughput accelerates compilation, rendering, and simulation tasks.
Delivers high performance at a 350 W TDP; workstation-class efficiency relative to workload size.
- •Strong single-core clocks and modern architecture handle high-refresh gaming well.
- •Workstation platforms lack consumer-focused optimizations, but gaming is still capable.
- •Best paired with discrete GPUs; no integrated graphics present.
- •AVX-512 support accelerates vectorized compute; suitable for CPU-based inference and training.
- • PCIe 5.0 lanes and memory bandwidth help feed multiple accelerators in workstation setups.
- •For large-scale training, dedicated GPUs remain the primary compute engines.
Architecture
4nm (CPU cores); 6nm (I/O die)
Process Node
Shimada Peak
Codename
32C / 64T
Core Config
128 MB
L3 Cache
350 W
TDP
Architecture Overview
Zen 5 introduces deeper execution resources, branch prediction improvements, and wider data paths, raising per-clock performance while maintaining high clock speeds in workstation power envelopes.
CPU Design
The 9975WX uses 32 Zen 5 cores arranged in chiplets with a 6nm I/O die, each core supporting SMT for 64 threads and 1 MB of private L2 cache per core, plus a unified 128 MB L3 cache.
Memory Subsystem
Eight memory channels support DDR5 RDIMMs up to 6400 MT/s with ECC enabled by default, delivering high bandwidth for large data sets.
PCIe & I/O
The package provides 144 usable PCIe 5.0 lanes from a total of 148 native lanes, allowing extensive high-speed I/O configuration.
Overclocking
Unlocked multiplier with Precision Boost Overdrive and Curve Optimizer enables users to tune performance and voltage.
- Zen 5 architecture uplifts per-core performance versus Zen 4.
- Higher boost clocks up to 5.4 GHz for better single-thread responsiveness.
- PCIe 5.0 lanes improve GPU and NVMe headroom versus the prior generation.
- Efficiency refinements improve performance-per-watt in many workstation workloads.
Key Highlights
- 32 Zen 5 cores with high single- and multi-thread performance
- Eight-channel DDR5 with ECC for large memory bandwidth and reliability
- 128 usable PCIe 5.0 lanes for multi-GPU and NVMe configurations
- Unlocked for overclocking via Precision Boost Overdrive
- AVX-512 support for vectorized compute workloads
- Comprehensive PRO manageability and security features
- Supports WRX90, TRX50, and Pro 695 chipsets
- 350 W TDP requires robust cooling and power delivery
- Workstation platforms and motherboards are expensive
- No integrated graphics; discrete GPU required
- Above 32 cores, some workloads benefit more from higher-core models
- Platform features ( lanes, memory) exceed needs for typical desktop use
History
Announced at COMPUTEX 2025 as part of the Threadripper 9000 family, the Ryzen Threadripper PRO 9000 WX-Series brought Zen 5 to workstations with the codename Shimada Peak. The 9975WX launched on July 23, 2025, targeting professionals who need a balanced core count, high I/O, and eight-channel memory. It延续了 AMDs strategy of adapting EPYC-style multi-die designs for workstation platforms, with sTR5 serving as the socket across 7000 and 9000 generations, while adding PCIe 5.
0 and refined power management.
Improvements over Previous Generation
- Zen 5 architecture uplifts per-core performance versus Zen 4.
- Higher boost clocks up to 5.4 GHz for better single-thread responsiveness.
- PCIe 5.0 lanes improve GPU and NVMe headroom versus the prior generation.
- Efficiency refinements improve performance-per-watt in many workstation workloads.
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Professional workstation requiring many cores, high I/O, and large memory bandwidth for simulations, 3D, or development.
Avoid if…
- Budget-sensitive mainstream desktop use.
- Gaming-focused builds with no need for workstation features.
- Workloads scaling beyond 32 cores, where higher-core-count models may be more efficient.
Use Cases
Interesting Facts
Former codename 'Shimada Peak' ties it to AMD's internal naming convention.
Zen 5 implementation includes full-speed AVX-512 support, doubling vector throughput relative to AVX2.
Unlocked multiplier is uncommon in many PRO segments, giving enthusiasts room to tune.
Package uses five dies: multiple 4nm core dies and a 6nm I/O die.
Eight memory channels provide roughly double the bandwidth of typical quad-channel desktop platforms.
128 usable PCIe 5.0 lanes enable up to eight x16 electrical connections if properly bifurcated.
Launch occurred on July 23, 2025, as part of the Threadripper PRO 9000 WX-Series.
Max operating temperature (Tjmax) is rated at 95°C.
AMD EXPO memory overclocking is supported for DDR5 tuning.
Supporting WRX90, TRX50, and Pro 695 chipsets provides flexibility across workstation segments.
People Also Ask
How many PCIe lanes does the Ryzen Threadripper PRO 9975WX have?
It offers 144 usable PCIe 5.0 lanes from 148 total native lanes.
What socket does the Ryzen Threadripper PRO 9975WX use?
It uses the sTR5 socket and supports WRX90, TRX50, and Pro 695 chipsets.
Does the Ryzen Threadripper PRO 9975WX have integrated graphics?
No, a discrete graphics card is required.
What is the TDP of the Ryzen Threadripper PRO 9975WX?
The default TDP is rated at 350 W.
Is the Ryzen Threadripper PRO 9975WX unlocked?
Yes, it supports overclocking via Precision Boost Overdrive and Curve Optimizer.
What memory type does the Ryzen Threadripper PRO 9975WX support?
It supports DDR5 RDIMMs with ECC, up to 6400 MT/s across eight memory channels.
What are the CPU core and thread counts of the 9975WX?
The 9975WX has 32 cores and 64 threads.
What is the max boost clock of the Ryzen Threadripper PRO 9975WX?
Up to 5.4 GHz.
When was the Ryzen Threadripper PRO 9975WX launched?
It launched on July 23, 2025.
Is the Ryzen Threadripper PRO 9975WX good for gaming?
It is capable for high-refresh gaming due to strong single-thread performance, but it is designed primarily for professional workloads.
Frequently Asked Questions
Does the Ryzen Threadripper PRO 9975WX support ECC memory?
Yes, ECC is enabled by default with supported RDIMMs.
What chipsets support the Ryzen Threadripper PRO 9975WX?
WRX90, TRX50, and Pro 695 chipsets support this processor.
What process is the 9975WX built on?
CPU cores are built on TSMC 4nm FinFET; the I/O die uses 6nm FinFET.
What is the L3 cache size?
The L3 cache is 128 MB.
Can I overclock the Ryzen Threadripper PRO 9975WX?
Yes, AMD provides Precision Boost Overdrive and Curve Optimizer support.
Does the 9975WX support AVX-512?
Yes, AVX-512 extensions are supported.
How many USB and SATA ports are native?
The CPU provides four native USB 3.2 Gen 2 (10 Gbps) ports and four native SATA ports.
Is the 9975WX compatible with the previous sWRX8 socket?
No, it uses the sTR5 socket and is not backward compatible with sWRX8.
What is the maximum operating temperature?
The maximum operating temperature (Tjmax) is 95°C.
Does it support AMD EXPO memory overclocking?
Yes, AMD EXPO memory overclocking technology is supported.