Ryzen Threadripper PRO 3975WX vs i9-9900K

Aggregate performance score

Core i9-9900K
2018
8 cores / 16 threads, 95 Watt
11.93
Ryzen Threadripper PRO 3975WX
2020
32 cores / 64 threads, 280 Watt
40.89
+243%

Ryzen Threadripper PRO 3975WX outperforms Core i9-9900K by a whopping 243% based on our aggregate benchmark results.

Primary details

Comparing Core i9-9900K and Ryzen Threadripper PRO 3975WX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking67266
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation8.07no data
Market segmentDesktop processorServer
SeriesCore i9 (Desktop)AMD Ryzen Threadripper
Power efficiency11.4513.32
Architecture codenameCoffee Lake-R (2018−2019)Matisse (2019−2020)
Release date8 October 2018 (6 years ago)14 July 2020 (4 years ago)
Launch price (MSRP)$488no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-9900K and Ryzen Threadripper PRO 3975WX 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 cores8 (Octa-Core)32 (Dotriaconta-Core)
Threads1664
Base clock speed3.6 GHz3.5 GHz
Boost clock speed5 GHz4.2 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/sno data
Multiplierno data35
L1 cache512 KB2 MB
L2 cache2 MB16 MB
L3 cache16 MB (shared)128 MB
Chip lithography14 nm7 nm, 12 nm
Die size178 mm274 mm2
Maximum core temperature100 °C95 °C
Maximum case temperature (TCase)72 °C95 °C
Number of transistorsno data23540 Million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Core i9-9900K and Ryzen Threadripper PRO 3975WX 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 configuration1 (Uniprocessor)1
SocketLGA-1151sWRX8
Power consumption (TDP)95 Watt280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900K and Ryzen Threadripper PRO 3975WX. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2, XFR 2
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+-
Idle States+no data
Thermal Monitoring+-
SIPP+-
Precision Boost 2no data+

Security technologies

Core i9-9900K and Ryzen Threadripper PRO 3975WX technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Secure Key+no data
MPX+-
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900K and Ryzen Threadripper PRO 3975WX are enumerated here.

AMD-V++
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900K and Ryzen Threadripper PRO 3975WX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4-3200
Maximum memory size128 GB2 TiB
Max memory channels2no data
Maximum memory bandwidth44.668 GB/s204.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics 630-
Max video memory64 GB-
Quick Sync Video+-
Clear Video+-
Clear Video HD+-
Graphics max frequency1.2 GHz-
InTru 3D+-

Graphics interfaces

Available interfaces and connections of Core i9-9900K and Ryzen Threadripper PRO 3975WX integrated GPUs.

Number of displays supported3-

Graphics image quality

Maximum display resolutions supported by Core i9-9900K and Ryzen Threadripper PRO 3975WX integrated GPUs, including resolutions over different interfaces.

4K resolution support+-
Max resolution over HDMI 1.44096 x 2304@24Hz-
Max resolution over eDP4096 x 2304@60Hz-
Max resolution over DisplayPort4096 x 2304@60Hz-

Graphics API support

APIs supported by Core i9-9900K and Ryzen Threadripper PRO 3975WX integrated GPUs, sometimes API versions are included.

DirectX12-
OpenGL4.5-

Peripherals

Specifications and connection of peripherals supported by Core i9-9900K and Ryzen Threadripper PRO 3975WX.

PCIe version3.04.0
PCI Express lanes16128

Synthetic benchmark performance

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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i9-9900K 11.93
Ryzen Threadripper PRO 3975WX 40.89
+243%

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.

i9-9900K 18262
Ryzen Threadripper PRO 3975WX 62572
+243%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i9-9900K 1701
+4.2%
Ryzen Threadripper PRO 3975WX 1632

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i9-9900K 8039
Ryzen Threadripper PRO 3975WX 14680
+82.6%

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i9-9900K 7933
+34.8%
Ryzen Threadripper PRO 3975WX 5884

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i9-9900K 48779
Ryzen Threadripper PRO 3975WX 53924
+10.5%

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i9-9900K 14282
Ryzen Threadripper PRO 3975WX 16923
+18.5%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i9-9900K 3.58
+1.4%
Ryzen Threadripper PRO 3975WX 3.63

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i9-9900K 21
Ryzen Threadripper PRO 3975WX 52
+144%

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i9-9900K 1979
Ryzen Threadripper PRO 3975WX 7053
+256%

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i9-9900K 212
+5.5%
Ryzen Threadripper PRO 3975WX 201

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i9-9900K 2.38
+8.7%
Ryzen Threadripper PRO 3975WX 2.19

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i9-9900K 11.1
Ryzen Threadripper PRO 3975WX 27
+143%

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i9-9900K 114
Ryzen Threadripper PRO 3975WX 193
+68.9%

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i9-9900K 261
Ryzen Threadripper PRO 3975WX 268
+2.9%

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i9-9900K 7633
+16.9%
Ryzen Threadripper PRO 3975WX 6530

Geekbench 5.5 Multi-Core

i9-9900K 8845
Ryzen Threadripper PRO 3975WX 28798
+226%

Blender(-)

i9-9900K 224
+222%
Ryzen Threadripper PRO 3975WX 69

Geekbench 5.5 Single-Core

i9-9900K 1300
+1.2%
Ryzen Threadripper PRO 3975WX 1285

7-Zip Single

i9-9900K 5411
+5.3%
Ryzen Threadripper PRO 3975WX 5140

7-Zip

i9-9900K 48207
Ryzen Threadripper PRO 3975WX 141386
+193%

Gaming performance

Pros & cons summary


Performance score 11.93 40.89
Recency 8 October 2018 14 July 2020
Physical cores 8 32
Threads 16 64
Chip lithography 14 nm 7 nm
Power consumption (TDP) 95 Watt 280 Watt

i9-9900K has 194.7% lower power consumption.

Ryzen Threadripper PRO 3975WX, on the other hand, has a 242.7% higher aggregate performance score, an age advantage of 1 year, 300% more physical cores and 300% more threads, and a 100% more advanced lithography process.

The Ryzen Threadripper PRO 3975WX is our recommended choice as it beats the Core i9-9900K in performance tests.

Note that Core i9-9900K is a desktop processor while Ryzen Threadripper PRO 3975WX is a server/workstation one.


Should you still have questions on choice between Core i9-9900K and Ryzen Threadripper PRO 3975WX, ask them in Comments section, and we shall answer.

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Intel Core i9-9900K
Core i9-9900K
AMD Ryzen Threadripper PRO 3975WX
Ryzen Threadripper PRO 3975WX

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Community ratings

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