Intel Core i9-11900KB vs Intel Xeon Gold 6338T

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CPU comparison with benchmarks


Intel Core i9-11900KB CPU1 vs CPU2 Intel Xeon Gold 6338T
Intel Core i9-11900KB Intel Xeon Gold 6338T

CPU comparison

Intel Core i9-11900KB or Intel Xeon Gold 6338T - 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 Core i9-11900KB has 8 cores with 16 threads and clocks with a maximum frequency of 5.30 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Core i9-11900KB was released in Q2/2021.

The Intel Xeon Gold 6338T has 24 cores with 48 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to 6144 GB of memory in 8 memory channels. The Intel Xeon Gold 6338T was released in Q2/2021.
Intel Core i9 (78) Family Intel Xeon Gold (163)
Intel Core i 11000H (17) CPU group Intel Xeon Gold 5300/6300 (21)
11 Generation 3
Tiger Lake H Architecture Ice Lake
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core i9-11900KB is a 8 core processor with a clock frequency of 3.30 GHz (5.30 GHz). The Intel Xeon Gold 6338T has 24 CPU cores with a clock frequency of 2.10 GHz (3.40 GHz).

Intel Core i9-11900KB Characteristic Intel Xeon Gold 6338T
8 Cores 24
16 Threads 48
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? No
3.30 GHz Frequency 2.10 GHz
5.30 GHz Turbo Frequency (1 Core) 3.40 GHz
4.90 GHz Turbo Frequency (All Cores) 2.80 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 Core i9-11900KB Characteristic Intel Xeon Gold 6338T
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

Intel UHD Graphics 11th Gen (32 EU) GPU no iGPU
0.35 GHz GPU frequency --
1.45 GHz GPU (Turbo) --
11 GPU Generation --
10 nm Technology
3 Max. displays
32 Compute units --
256 Shader --
No Hardware Raytracing No
No Frame Generation No
64 GB Max. GPU Memory --
12 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.

Intel UHD Graphics 11th Gen (32 EU) GPU no iGPU
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
Decode Codec AV1 No
Decode / Encode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The Intel Core i9-11900KB supports a maximum of 128 GB of memory in 2 memory channels. The Intel Xeon Gold 6338T can connect up to 6144 GB of memory in 8 memory channels.

Intel Core i9-11900KB Characteristic Intel Xeon Gold 6338T
DDR4-3200 Memory DDR4-3200
128 GB Max. Memory 6144 GB
2 (Dual Channel) Memory channels 8 (Octa Channel)
51.2 GB/s Max. Bandwidth 204.8 GB/s
No ECC Yes
4.00 MB L2 Cache --
20.00 MB L3 Cache 36.00 MB
3.0 PCIe version 4.0
16 PCIe lanes 64
15.8 GB/s PCIe Bandwidth 126.0 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i9-11900KB has a TDP of 65 W, that of the Intel Xeon Gold 6338T is 165 W.

Intel Core i9-11900KB Characteristic Intel Xeon Gold 6338T
65 W TDP (PL1 / PBP) 165 W
-- TDP (PL2) --
-- TDP up --
55 W TDP down --
100 °C Tjunction max. --

Technical details

The Intel Core i9-11900KB has a 24.00 MB cache, while the Intel Xeon Gold 6338T cache has a total of 36.00 MB.

Intel Core i9-11900KB Characteristic Intel Xeon Gold 6338T
10 nm Technology 10 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, AVX-512
BGA 1787 Socket LGA 4189
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Linux
Q2/2021 Release date Q2/2021
583 $ Release price 2742 $
show more data show more data


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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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 5.30 GHz
1663 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 3.40 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 4.90 GHz
12264 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 2.80 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 5.30 GHz
1878 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 3.40 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 5.30 GHz
2231 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 3.40 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 4.90 GHz
10645 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 2.80 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 5.30 GHz
640 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 3.40 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 4.90 GHz
4712 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 2.80 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
Intel UHD Graphics 11th Gen (32 EU) @ 1.45 GHz
742 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
@ 0.00 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 4.90 GHz
23151 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 2.80 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 4.90 GHz
200 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 2.80 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 5.30 GHz
256 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 3.40 GHz
0 (0%)

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 Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 4.90 GHz
2144 (100%)
Intel Xeon Gold 6338T Intel Xeon Gold 6338T
24C 48T @ 2.80 GHz
0 (0%)

Devices using this processor

Intel Core i9-11900KB Intel Xeon Gold 6338T
Unknown Unknown

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