Intel Xeon Silver 4208 vs Intel Core i9-9900K

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CPU comparison with benchmarks


Intel Xeon Silver 4208 CPU1 vs CPU2 Intel Core i9-9900K
Intel Xeon Silver 4208 Intel Core i9-9900K

CPU comparison

Intel Xeon Silver 4208 or Intel Core i9-9900K - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Xeon Silver 4208 has 8 cores with 16 threads and clocks with a maximum frequency of 3.20 GHz. Up to 1024 GB of memory is supported in 6 memory channels. The Intel Xeon Silver 4208 was released in Q2/2019.

The Intel Core i9-9900K has 8 cores with 16 threads and clocks with a maximum frequency of 5.00 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Core i9-9900K was released in Q4/2018.
Intel Xeon Silver (27) Family Intel Core i9 (78)
Intel Xeon Silver 4200 (11) CPU group Intel Core i 9000 (34)
2 Generation 9
Cascade Lake Architecture Coffee Lake S Refresh
Desktop / Server Segment Desktop / Server
Intel Xeon Silver 4108 Predecessor --
-- Successor Intel Core i9-10900K

CPU Cores and Base Frequency

The Intel Xeon Silver 4208 has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the Intel Xeon Silver 4208 is 2.10 GHz (3.20 GHz) while the Intel Core i9-9900K has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the Intel Core i9-9900K is at 3.60 GHz (5.00 GHz).

Intel Xeon Silver 4208 Characteristic Intel Core i9-9900K
8 Cores 8
16 Threads 16
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
2.10 GHz Frequency 3.60 GHz
3.20 GHz Turbo Frequency (1 Core) 5.00 GHz
2.30 GHz Turbo Frequency (All Cores) 4.70 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Xeon Silver 4208 Characteristic Intel Core i9-9900K
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Xeon Silver 4208 or Intel Core i9-9900K has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU Intel UHD Graphics 630
GPU frequency 0.35 GHz
-- GPU (Turbo) 1.20 GHz
-- GPU Generation 9.5
Technology 14 nm
Max. displays 3
-- Compute units 24
-- Shader 192
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 64 GB
-- DirectX Version 12

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 Intel UHD Graphics 630
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The Intel Xeon Silver 4208 can use up to 1024 GB of memory in 6 memory channels. The maximum memory bandwidth is 115.2 GB/s. The Intel Core i9-9900K supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 42.7 GB/s.

Intel Xeon Silver 4208 Characteristic Intel Core i9-9900K
DDR4-2400 Memory DDR4-2666
1024 GB Max. Memory 128 GB
6 (Hexa Channel) Memory channels 2 (Dual Channel)
115.2 GB/s Max. Bandwidth 42.7 GB/s
Yes ECC No
-- L2 Cache --
11.00 MB L3 Cache 16.00 MB
3.0 PCIe version 3.0
48 PCIe lanes 16
47.3 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Xeon Silver 4208 is 85 W, while the Intel Core i9-9900K has a TDP of 95 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Xeon Silver 4208 Characteristic Intel Core i9-9900K
85 W TDP (PL1 / PBP) 95 W
-- TDP (PL2) 119 W @ 28 s
-- TDP up --
-- TDP down --
-- Tjunction max. 100 °C

Technical details

The Intel Xeon Silver 4208 is manufactured in 14 nm and has 11.00 MB cache. The Intel Core i9-9900K is manufactured in 14 nm and has a 16.00 MB cache.

Intel Xeon Silver 4208 Characteristic Intel Core i9-9900K
14 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4.1, SSE4.2, AVX2
LGA 3647 Socket LGA 1151-2
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Windows 11, Linux
Q2/2019 Release date Q4/2018
422 $ Release price 650 $
show more data show more data


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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 3.20 GHz
881 (66%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 5.00 GHz
1342 (100%)

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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
5639 (64%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
8779 (100%)

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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 3.20 GHz
1189 (72%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 5.00 GHz
1650 (100%)

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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
5483 (67%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
8182 (100%)

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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
11134 (60%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
18702 (100%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 3.20 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 5.00 GHz
77 (100%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 3.20 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 5.00 GHz
640 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 3.20 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 5.00 GHz
1294 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
12812 (100%)

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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 3.20 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 5.00 GHz
518 (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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
4995 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
@ 0.00 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
Intel UHD Graphics 630 @ 1.20 GHz
461 (100%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
171 (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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
163.8 (100%)

CPU-Z Benchmark 17 (Single-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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
545 (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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.10 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 3.60 GHz
5502 (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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 3.20 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 5.00 GHz
219 (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.
Intel Xeon Silver 4208 Intel Xeon Silver 4208
8C 16T @ 2.30 GHz
0 (0%)
Intel Core i9-9900K Intel Core i9-9900K
8C 16T @ 4.70 GHz
2245 (100%)

Devices using this processor

Intel Xeon Silver 4208 Intel Core i9-9900K
Unknown Memory PC Intel i9-9900K
Multimedia Office PC Intel Core i9 9900K
Corsair ONE i160 Kompakter Gaming-PC Intel Core i9-9900K

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