Intel Core i5-9400 Intel Processor U300
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Intel Core i5-9400 vs Intel Processor U300

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Intel Core i5-9400 vs. Intel Processor U300: A Detailed Comparison The Intel Core i5-9400, based on the 14 nm Coffee Lake S Refresh architecture, is a ninth-generation desktop processor for mainstream systems.

It offers 6 cores and 6 threads, as well as 9 MB of L3 cache. In contrast, the Intel Processor U300 is a more modern processor of the Raptor Lake U architecture, manufactured using the 10 nm process. It features a hybrid design with one performance core and four efficiency cores (a total of 5 cores/6 threads) and 10 MB of L3 cache.

Both processors are, according to the provided information, equipped with 0 MB of Level 2 cache. In terms of performance, the Intel Processor U300 shows significantly higher single-core performance in Geekbench 6, while the multi-core performance of both processors is comparable there. In Cinebench R23, the Intel Core i5-9400 achieves very high single-core performance, while the Intel Processor U300 achieves significantly higher multi-core performance.

Its integrated Intel UHD Graphics 13th Gen (48 EU) with 83 GB/s memory bandwidth surpasses the Intel UHD Graphics 630 (43 GB/s) of the Intel Core i5-9400. For gaming, the Intel Core i5-9400 is better suited due to its 6 cores and higher TDP (65W) in combination with a dedicated graphics card and supports PCIe 3.0.

The Intel Processor U300, with its typical TDP of 15W, is significantly more energy-efficient. The Intel Core i5-9400, as an older model, is primarily available used and offers good value for money for entry-level gamers. The Intel Processor U300 is a more current model for energy-efficient, compact systems and impresses with its modern architecture and efficiency for basic tasks.

Intel Core i5-9400

  • 6 Cores / 6 Threads for stable computing performance
  • Higher TDP of 65W for maximum performance
  • Better suitability for gaming with a dedicated graphics card
  • Supports PCIe 3.0

Intel Processor U300

  • Modern 10 nm Raptor Lake U-architecture with hybrid cores
  • Very energy-efficient with 15W TDP
  • Higher single-core performance and improved integrated graphics
  • Ideal for compact systems and everyday tasks

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank 2 - 64 %
Intel Core i5-9400
Rank 1 - 100 %
Intel Processor U300
Multi-core performance
Rank 1 - 100 %
Intel Core i5-9400
Rank 2 - 96 %
Intel Processor U300
Cinebench R23 Single-Core

Cinebench R23 Single-Core
Single-core performance

Intel Core i5-9400
6C / 6T · 4.10 GHz
1,005 pts
Intel Processor U300
5C / 6T · 4.40 GHz
1,554 pts
Cinebench R23 Multi-Core

Cinebench R23 Multi-Core
Multi-core performance

Intel Core i5-9400
6C / 6T · 3.90 GHz
5,341 pts
Intel Processor U300
5C / 6T · 1.20 GHz
4,850 pts
Geekbench 6 Single-Core

Geekbench 6 Single-Core
Single-core performance

Intel Core i5-9400
6C / 6T · 4.10 GHz
1,346
Intel Processor U300
5C / 6T · 4.40 GHz
2,158
Geekbench 6 Multi-Core

Geekbench 6 Multi-Core
Multi-core performance

Intel Core i5-9400
6C / 6T · 3.90 GHz
5,164
Intel Processor U300
5C / 6T · 1.20 GHz
5,096
iGPU - FP32 Performance (Single-precision GFLOPS)

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel Core i5-9400
Intel UHD Graphics 630
403
Intel Processor U300
Intel UHD Graphics 13th Gen (48 EU)
844

More benchmarks

At a glance

Wischen
Intel Core i5-9400Intel Processor U300
FamilyIntel Core i5 (336)Intel Processor U (7)
CPU groupIntel Core i 9000 (34)Intel Core i 1300P/1300U (33)
ArchitectureCoffee Lake S RefreshRaptor Lake U
Technology14 nm10 nm
SegmentDesktopNotebook
SocketLGA 1151-2BGA 1744
PredecessorIntel Core i5-8400
SuccessorIntel Core i5-10400

CPU Cores and Base Frequency

Wischen
Intel Core i5-9400Intel Processor U300
CPU Cores / Threads6 / 65 / 6
Hyperthreading / SMT
Core architecturenormalhybrid (big.LITTLE)
Core Cluster 1: 6x
2.90 - 4.10 GHz
1x Raptor Cove
1.20 - 4.40 GHz
Core Cluster 2: 4x Gracemont
0.90 - 3.30 GHz
L2-Cache
L3-Cache9.00 MB10.00 MB
Overclocking

Integrated graphics (iGPU)

Wischen
Intel Core i5-9400Intel Processor U300
GPU nameIntel UHD Graphics 630Intel UHD Graphics 13th Gen (48 EU)
GPU frequency0.35 - 1.05 GHz0.20 - 1.10 GHz
CUs / Shader24 / 19248 / 384
Raytracing
Max. displays33
Max. GPU Memory64 GB32 GB
Technology14 nm10 nm
Release dateQ4/2017Q1/2023

NPU AI performance

Wischen
Intel Core i5-9400Intel Processor U300
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen
Intel Core i5-9400Intel Processor U300
MemoryDDR4-2666 (42.7 GB/s)
LPDDR5-5200 (83.2 GB/s)
DDR5-5200 (83.2 GB/s)
LPDDR4X-4266 (68.2 GB/s)
DDR4-3200 (51.2 GB/s)
Max. Memory128 GB96 GB
Memory channels22
ECCNoNo
PCIe3.0 x 164.0 x 20
PCIe Bandwidth15.8 GB/s39.4 GB/s

Thermal Management

Wischen
Intel Core i5-9400Intel Processor U300
TDP65 W15 W
TDP (PL2)55 W
TDP up
TDP down12 W
T. junction max.100 °C100 °C

Technical details

Wischen
Intel Core i5-9400Intel Processor U300
Chip designMonolithicMonolithic
AES-NI
Operating systemsWindows 10, Windows 11, LinuxWindows 10, Windows 11, Linux
Instruction setx86-64 (64 bit)x86-64 (64 bit)
ISA extensionsSSE4.1, SSE4.2, AVX2SSE4.1, SSE4.2, AVX2
Release dateQ2/2019Q1/2023
Release price220 $
DocumentsTechnical data sheetTechnical data sheet

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i5-9400 is 3.9 stars (42 ratings), while Intel Processor U300 has received 3.9 stars (31 ratings).

Click on the stars to rate one or both processors.

Intel Core i5-9400
Intel Core i5-9400
6C / 6T · 2.90 - 4.10 GHz
Intel Processor U300
Intel Processor U300
5C / 6T · 1.20 - 4.40 GHz

Most popular CPUs in both categories

Intel Core i5-9400
Intel Core i5-9400
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