AMD Threadripper PRO 7945WX vs AMD Ryzen Threadripper PRO 3975WX

Comparative analysis of AMD Threadripper PRO 7945WX and AMD Ryzen Threadripper PRO 3975WX processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score.

AMD Threadripper PRO 7945WX

AMD Ryzen Threadripper PRO 3975WX

Differences

Reasons to consider the AMD Threadripper PRO 7945WX

CPU is newer: launch date 3 year(s) 3 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 26% higher clock speed: 5.3 GHz vs 4.2 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 5 nm vs 7 nm
Around 53% better performance in PassMark - Single thread mark: 4084 vs 2676

Specifications (specs)
Launch date	19 Oct 2023 vs 14 Jul 2020
Unlocked	Unlocked vs Locked
Maximum frequency	5.3 GHz vs 4.2 GHz
Manufacturing process technology	5 nm vs 7 nm
Benchmarks
PassMark - Single thread mark	4084 vs 2676

Reasons to consider the AMD Ryzen Threadripper PRO 3975WX

20 more cores, run more applications at once: 32 vs 12
40 more threads: 64 vs 24
2.7x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 25% lower typical power consumption: 280 Watt vs 350 Watt
Around 99% better performance in PassMark - CPU mark: 98811 vs 49567

Specifications (specs)
Number of cores	32 vs 12
Number of threads	64 vs 24
L1 cache	2 MB vs 64 KB (per core)
L2 cache	16 MB vs 1 MB (per core)
L3 cache	128 MB vs 64 MB (shared)
Thermal Design Power (TDP)	280 Watt vs 350 Watt
Benchmarks
PassMark - CPU mark	98811 vs 49567

Compare benchmarks

CPU 1: AMD Threadripper PRO 7945WX
CPU 2: AMD Ryzen Threadripper PRO 3975WX

PassMark - Single thread mark

CPU 1

CPU 2

4084

2676

PassMark - CPU mark

CPU 1

CPU 2

49567

98811

Name	AMD Threadripper PRO 7945WX	AMD Ryzen Threadripper PRO 3975WX
PassMark - Single thread mark	4084	2676
PassMark - CPU mark	49567	98811
3DMark Fire Strike - Physics Score		17270

Compare specifications (specs)

	AMD Threadripper PRO 7945WX	AMD Ryzen Threadripper PRO 3975WX
Essentials
Launch date	19 Oct 2023	14 Jul 2020
Launch price (MSRP)	$1399
Place in performance rating	62	78
Architecture codename		Zen 2 (Matisse)
OPN Tray		100-000000086
Vertical segment		Desktop
Performance
Base frequency	4.7 GHz	3.5 GHz
Die size	2x 71 mm²	74 mm²
L1 cache	64 KB (per core)	2 MB
L2 cache	1 MB (per core)	16 MB
L3 cache	64 MB (shared)	128 MB
Manufacturing process technology	5 nm	7 nm
Maximum core temperature	95°C
Maximum frequency	5.3 GHz	4.2 GHz
Number of cores	12	32
Number of threads	24	64
Transistor count	13,140 million	3800 million
Unlocked
Maximum case temperature (TCase)		95 °C
Memory
ECC memory support
Supported memory types	DDR5
Max memory channels		8
Supported memory frequency		DDR4-3200
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	sTR5	TR4
Thermal Design Power (TDP)	350 Watt	280 Watt
Peripherals
PCIe configurations	Gen 5, 128 Lanes, (CPU only)
Max number of PCIe lanes		128
PCI Express revision		4.0
Advanced Technologies
Enhanced Virus Protection (EVP)
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Intel® AES New Instructions
Virtualization
AMD Virtualization (AMD-V™)