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Athlon 300U
General Info
Designer	AMD
Manufacturer	GlobalFoundries
Model Number	300U
Part Number	YM300UC4T2OFG
Market	Mobile
Introduction	January 6, 2019 (announced) January 6, 2019 (launched)
Shop	Amazon
General Specs
Family	Athlon
Series	300
Frequency	2,400 MHz
Turbo Frequency	3,300 MHz (1 core)
Bus type	PCIe 3.0
Clock multiplier	24
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Zen+
Core Name	Picasso
Process	12 nm
Transistors	4,940,000,000
Technology	CMOS
Die	209.78 mm²
Word Size	64 bit
Cores	4
Threads	8
Max Memory	64 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
TDP	15 W
OP Temperature	0° C – 105 °C
Packaging
Unknown package "amd,socket_fp5"

Athlon 300U is a 64-bit dual-core value x86 mobile microprocessor introduced by AMD in early 2019. This processor is based on AMD's Zen+ microarchitecture and is fabricated on a 12 nm process. The 300U operates at a base frequency of 2.4 GHz with a TDP of 15 W and a Boost frequency of 3.3 GHz. This APU supports up to 32 GiB of dual-channel DDR4-2400 memory and incorporates Radeon Vega 3 Graphics operating at up to 1 GHz.

Cache

Main article: Zen+ § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 192 KiB 196,608 B 0.188 MiB L1I$ 128 KiB 131,072 B 0.125 MiB 2x64 KiB 4-way set associative   L1D$ 64 KiB 65,536 B 0.0625 MiB 2x32 KiB 8-way set associative write-back L2$ 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB     2x512 KiB 8-way set associative write-back L3$ 4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB     1x4 MiB

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-2400 Supports ECC Yes Max Mem 32 GiB Controllers 2 Channels 2 Max Bandwidth 35.76 GiB/s 36,618.24 MiB/s 38.397 GB/s 38,397.008 MB/s 0.0349 TiB/s 0.0384 TB/s Bandwidth Single 17.88 GiB/s Double 35.76 GiB/s

Expansions

This processor has 12 PCIe lanes, 1x8 typically designated for a GPU and 4 additional lanes for storage (e.g., NVMe).

[Edit/Modify Expansions Info]

	Expansion Options
PCIe Revision: 3.0 Max Lanes: 12 Configuration: 1x8+1x4, 2x4+1x4

Graphics

[Edit/Modify IGP Info]

	Integrated Graphics Information
	GPU Radeon Vega 3 Designer AMD Execution Units 3 Unified Shaders 192 Burst Frequency 1,200 MHz 1.2 GHz 1,200,000 KHz Output DP, HDMI Standards DirectX 12 OpenGL 4.6 OpenCL 2.2

[Edit] Zen with Radeon Vega Hardware Accelerated Video Capabilities
Codec	Encode			Decode
Max FPS	@1080p	@1440p	@2160p	@1080p 4:2:0	@2160p 4:2:0
MPEG-2 (H.262)				60 FPS	N/A
VC-1
VP9 8bpc				240 FPS	60 FPS
VP9 10bpc
MPEG-4 AVC (H.264) 8bpc	120 FPS	60 FPS	30 FPS
MPEG-4 AVC (H.264) 10bpc
HEVC (H.265) 8bpc	120 FPS	60 FPS	30 FPS
HEVC (H.265) 10bpc
JPEG/MJPEG 8bpc