AMD Ryzen Threadripper PRO 3945WX vs Intel Core i9-9820X

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CPU comparison with benchmarks


AMD Ryzen Threadripper PRO 3945WX CPU1 vs CPU2 Intel Core i9-9820X
AMD Ryzen Threadripper PRO 3945WX Intel Core i9-9820X

CPU comparison

In this CPU comparison, we compare the AMD Ryzen Threadripper PRO 3945WX and the Intel Core i9-9820X and use benchmarks to check which processor is faster.

We compare the AMD Ryzen Threadripper PRO 3945WX 12 core processor released in Q1/2021 with the Intel Core i9-9820X which has 10 CPU cores and was introduced in Q4/2018.
AMD Ryzen Threadripper PRO (15) Family Intel Core i9 (78)
AMD Ryzen Threadripper PRO 3000 (4) CPU group Intel Core i 9000X (8)
3 Generation 9
Castle Peak (Zen 2) Architecture Skylake X Refresh
Desktop / Server Segment Desktop / Server
-- Predecessor --
AMD Ryzen Threadripper PRO 5945WX Successor --

CPU Cores and Base Frequency

The AMD Ryzen Threadripper PRO 3945WX is a 12 core processor with a clock frequency of 4.00 GHz (4.30 GHz). The processor can compute 24 threads at the same time. The Intel Core i9-9820X clocks with 3.30 GHz (4.20 GHz), has 10 CPU cores and can calculate 20 threads in parallel.

AMD Ryzen Threadripper PRO 3945WX Characteristic Intel Core i9-9820X
12 Cores 10
24 Threads 20
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? Yes
4.00 GHz Frequency 3.30 GHz
4.30 GHz Turbo Frequency (1 Core) 4.20 GHz
4.20 GHz Turbo Frequency (All Cores) 4.00 GHz

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AMD Ryzen Threadripper PRO 3945WX Characteristic Intel Core i9-9820X
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

Up to 2048 GB of memory in a maximum of 8 memory channels is supported by the AMD Ryzen Threadripper PRO 3945WX, while the Intel Core i9-9820X supports a maximum of 128 GB of memory with a maximum memory bandwidth of 85.4 GB/s enabled.

AMD Ryzen Threadripper PRO 3945WX Characteristic Intel Core i9-9820X
DDR4-3200 Memory DDR4-2666
2048 GB Max. Memory 128 GB
8 (Octa Channel) Memory channels 4 (Quad Channel)
51.2 GB/s Max. Bandwidth 85.4 GB/s
Yes ECC No
6.00 MB L2 Cache --
64.00 MB L3 Cache 17.00 MB
4.0 PCIe version 3.0
128 PCIe lanes 44
252.0 GB/s PCIe Bandwidth 43.3 GB/s

Thermal Management

The AMD Ryzen Threadripper PRO 3945WX has a TDP of 280 W. The TDP of the Intel Core i9-9820X is 165 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen Threadripper PRO 3945WX Characteristic Intel Core i9-9820X
280 W TDP (PL1 / PBP) 165 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
95 °C Tjunction max. 95 °C

Technical details

The AMD Ryzen Threadripper PRO 3945WX has 70.00 MB cache and is manufactured in 7 nm. The cache of Intel Core i9-9820X is at 17.00 MB. The processor is manufactured in 14 nm.

AMD Ryzen Threadripper PRO 3945WX Characteristic Intel Core i9-9820X
7 nm Technology 14 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
WRX8 (sWRX8) Socket LGA 2066
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2021 Release date Q4/2018
-- Release price 889 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
AMD Ryzen Threadripper PRO 3945WX (100%)
Intel Core i9-9820X (85%)
⌀ Multi core performance in 3 CPU benchmarks
AMD Ryzen Threadripper PRO 3945WX (100%)
Intel Core i9-9820X (74%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.30 GHz
1307 (100%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.20 GHz
1121 (86%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
12828 (100%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.00 GHz
10465 (82%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.30 GHz
1652 (100%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.20 GHz
1394 (84%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
11500 (100%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.00 GHz
9361 (81%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
33450 (100%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.00 GHz
19671 (59%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.30 GHz
0 (0%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.20 GHz
422 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
0 (0%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.00 GHz
4677 (100%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
0 (0%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.00 GHz
155.6 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.00 GHz
0 (0%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 3.30 GHz
5380 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.30 GHz
0 (0%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.20 GHz
184 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
0 (0%)
Intel Core i9-9820X Intel Core i9-9820X
10C 20T @ 4.00 GHz
1987 (100%)

Devices using this processor

AMD Ryzen Threadripper PRO 3945WX Intel Core i9-9820X
Unknown Unknown

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