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Castle Peak
General Info
Designer	AMD
Manufacturer	TSMC, GlobalFoundries
Introduction	November 7, 2019 (announced) November 25, 2019 (launched)
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Zen 2
Chipset	TRX40
Word Size	8 octets 16 nibbles 64 bit
Process	7 nm 0.007 μm 7.0e-6 mm
Technology	CMOS
Clock	3,700 MHz - 3,800 MHz
Packaging
Unknown package "amd,socket_trx4"
Succession
Colfax Genesis Peak

Castle Peak (CPK) is codename for AMD's highest-performance enthusiasts microprocessors serving as a successor to Colfax, released in late 2019. Castle Peak-based processors are based on the Zen 2 microarchitecture and are fabricated on TSMC 7 nm process.

Castle Peak-based microprocessors are branded as 3rd-generation Ryzen Threadripper.

Overview

Castle Peak chips are a series of high-performance desktop processors designed by AMD based on their Zen 2 microarchitecture. Those processors have 72 PCIe lanes with 8 permanently reserved for the chipset and the other 64 generally set up as 48 lanes for GPUs/accelerators and 16 for I/O.

Common Features

All Castle Peak processors have the following:

• 64 PCIe lanes
• Quad-channel Memory
  • Up to DDR4-3200 ECC
  • Up to ? TiB
• Up to 64 cores / 128 threads
• Everything up to AVX2 (i.e., SMM, FPU, NX, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX, FMA3, and AVX2), and SHA

Castle Peak Processors

	List of Castle Peak Processors
Model	Family	Price	Launched	Cores	Threads	TDP	L2$	L3$	Base	Turbo
3960X	Ryzen Threadripper	$ 1,399.00 € 1,259.10 £ 1,133.19 ¥ 144,558.67	25 November 2019	24	48	280 W 280,000 mW 0.375 hp 0.28 kW	12 MiB 12,288 KiB 12,582,912 B 0.0117 GiB	128 MiB 131,072 KiB 134,217,728 B 0.125 GiB	3.8 GHz 3,800 MHz 3,800,000 kHz	4.5 GHz 4,500 MHz 4,500,000 kHz
3970X	Ryzen Threadripper	$ 1,999.00 € 1,799.10 £ 1,619.19 ¥ 206,556.67	25 November 2019	32	64	280 W 280,000 mW 0.375 hp 0.28 kW	16 MiB 16,384 KiB 16,777,216 B 0.0156 GiB	128 MiB 131,072 KiB 134,217,728 B 0.125 GiB	3.7 GHz 3,700 MHz 3,700,000 kHz	4.5 GHz 4,500 MHz 4,500,000 kHz
3980X	Ryzen Threadripper			48	96	280 W 280,000 mW 0.375 hp 0.28 kW	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB		3.2 GHz 3,200 MHz 3,200,000 kHz	4.5 GHz 4,500 MHz 4,500,000 kHz
3990X	Ryzen Threadripper	$ 3,990.00 € 3,591.00 £ 3,231.90 ¥ 412,286.70	7 February 2020	64	128	280 W 280,000 mW 0.375 hp 0.28 kW	32 MiB 32,768 KiB 33,554,432 B 0.0313 GiB	256 MiB 262,144 KiB 268,435,456 B 0.25 GiB	2.9 GHz 2,900 MHz 2,900,000 kHz	4.3 GHz 4,300 MHz 4,300,000 kHz
PRO 3945WX	Ryzen Threadripper		14 July 2020	12	24	280 W 280,000 mW 0.375 hp 0.28 kW	6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB	64 MiB 65,536 KiB 67,108,864 B 0.0625 GiB	4 GHz 4,000 MHz 4,000,000 kHz	4.3 GHz 4,300 MHz 4,300,000 kHz
PRO 3955WX	Ryzen Threadripper		14 July 2020	16	32	280 W 280,000 mW 0.375 hp 0.28 kW	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	64 MiB 65,536 KiB 67,108,864 B 0.0625 GiB	3.9 GHz 3,900 MHz 3,900,000 kHz	4.3 GHz 4,300 MHz 4,300,000 kHz
PRO 3975WX	Ryzen Threadripper		14 July 2020	32	64	280 W 280,000 mW 0.375 hp 0.28 kW	16 MiB 16,384 KiB 16,777,216 B 0.0156 GiB	128 MiB 131,072 KiB 134,217,728 B 0.125 GiB	3.5 GHz 3,500 MHz 3,500,000 kHz	4.2 GHz 4,200 MHz 4,200,000 kHz
PRO 3995WX	Ryzen Threadripper		14 July 2020	64	128	280 W 280,000 mW 0.375 hp 0.28 kW	32 MiB 32,768 KiB 33,554,432 B 0.0313 GiB	256 MiB 262,144 KiB 268,435,456 B 0.25 GiB	2.7 GHz 2,700 MHz 2,700,000 kHz	4.2 GHz 4,200 MHz 4,200,000 kHz
Count: 8

SKU Comparison

Below are a number of SKU comparison graphs based on their specifications.

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See also

Zen 2 Rome Castle Peak Matisse Renoir

Power/Performance