Xeon 6781P vs Ryzen Threadripper PRO 3945WX

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Aggregate performance score

Ryzen Threadripper PRO 3945WX
2020
12 cores / 24 threads, 280 Watt
19.04
Xeon 6781P
2025
80 cores / 160 threads, 350 Watt
67.11
+252%

Xeon 6781P outperforms Ryzen Threadripper PRO 3945WX by a whopping 252% based on our aggregate benchmark results.

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking35321
Place by popularitynot in top-100not in top-100
Market segmentServerServer
SeriesAMD Ryzen Threadripperno data
Power efficiency2.878.10
DesignerAMDIntel
ManufacturerTSMCno data
Architecture codenameCastle Peak (2020)no data
Release date14 July 2020 (5 years ago)1 January 2025 (less than a year ago)

Detailed specifications

Ryzen Threadripper PRO 3945WX and Xeon 6781P basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores12 (Dodeca-Core)80
Threads24160
Base clock speed4 GHz2 GHz
Boost clock speed4.3 GHz3.8 GHz
Multiplier40no data
L1 cache64 KB (per core)no data
L2 cache512 KB (per core)no data
L3 cache64 MB336 MB
Chip lithography7 nm, 12 nmIntel 3 nm
Die size2x 74 mm2no data
Maximum core temperatureno data81 °C
Maximum case temperature (TCase)95 °Cno data
Number of transistors7,600 millionno data
64 bit support+-
Windows 11 compatibility+no data

Compatibility

Information on Ryzen Threadripper PRO 3945WX and Xeon 6781P compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1no data
SocketWRX8FCLGA4710
Power consumption (TDP)280 Watt350 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper PRO 3945WX and Xeon 6781P. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI++
AVX+-
Speed Shiftno data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX-+
Deep Learning Boost-+

Security technologies

Ryzen Threadripper PRO 3945WX and Xeon 6781P technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+
SGXno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 3945WX and Xeon 6781P are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 3945WX and Xeon 6781P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5(6400MT/s), MRDIMM(8800MT/s)
Maximum memory size2 TiB4 TB
Max memory channelsno data8
Maximum memory bandwidth204.8 GB/sno data
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/Ano data

Peripherals

Specifications and connection of peripherals supported by Ryzen Threadripper PRO 3945WX and Xeon 6781P.

PCIe version4.05.0
PCI Express lanes128136

Synthetic benchmarks

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating.

Ryzen Threadripper PRO 3945WX 19.04
Xeon 6781P 67.11
+252%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.

Ryzen Threadripper PRO 3945WX 33470
Samples: 183
Xeon 6781P 117946
+252%
Samples: 2

Gaming performance

Pros & cons summary


Performance score 19.04 67.11
Recency 14 July 2020 1 January 2025
Physical cores 12 80
Threads 24 160
Power consumption (TDP) 280 Watt 350 Watt

Ryzen Threadripper PRO 3945WX has 25% lower power consumption.

Xeon 6781P, on the other hand, has a 252.5% higher aggregate performance score, an age advantage of 4 years, and 566.7% more physical cores and 566.7% more threads.

The Intel Xeon 6781P is our recommended choice as it beats the AMD Ryzen Threadripper PRO 3945WX in performance tests.

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AMD Ryzen Threadripper PRO 3945WX
Ryzen Threadripper PRO 3945WX
Intel Xeon 6781P
Xeon 6781P

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Community ratings

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