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Athlon 300U - AMD
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Athlon 300U
General Info
Model Number300U
Part NumberYM300UC4T2OFG
IntroductionJanuary 6, 2019 (announced)
January 6, 2019 (launched)
General Specs
Frequency2,400 MHz
Turbo Frequency3,300 MHz (1 core)
Bus typePCIe 3.0
Clock multiplier24
ISAx86-64 (x86)
Core NamePicasso
Process12 nm
Die209.78 mm²
Word Size64 bit
Max CPUs1 (Uniprocessor)
Max Memory64 GiB
cTDP down12 W
cTDP up35 W
OP Temperature0° C – 105 °C
PackageSocket FP5 (BGA)
Dimension25 mm × 35 mm × 1.38 mm

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.

This model supports a configurable TDP-down of 12 W and TDP-up of 35 W.


Main article: Zen+ § Cache

[Edit/Modify Cache Info]

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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
0.188 MiB
196,608 B
1.831055e-4 GiB
L1I$128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
2x64 KiB4-way set associative 
L1D$64 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
2x32 KiB8-way set associativewrite-back

L2$1 MiB
1,024 KiB
1,048,576 B
9.765625e-4 GiB
  2x512 KiB8-way set associativewrite-back

L3$4 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
  1x4 MiB  

Memory controller[edit]

[Edit/Modify Memory Info]

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Integrated Memory Controller
Max TypeDDR4-2400
Supports ECCYes
Max Mem32 GiB
Max Bandwidth35.76 GiB/s
Single 17.88 GiB/s
Double 35.76 GiB/s


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]

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


[Edit/Modify IGP Info]

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Integrated Graphics Information
GPURadeon Vega 3
Execution Units3Max Displays3
Unified Shaders192
Burst Frequency1,200 MHz
1.2 GHz
1,200,000 KHz
OutputDisplayPort, HDMI



[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features
MMXMMX Extension
EMMXExtended MMX Extension
SSEStreaming SIMD Extensions
SSE2Streaming SIMD Extensions 2
SSE3Streaming SIMD Extensions 3
SSSE3Supplemental SSE3
SSE4.1Streaming SIMD Extensions 4.1
SSE4.2Streaming SIMD Extensions 4.2
SSE4aStreaming SIMD Extensions 4a
AVXAdvanced Vector Extensions
AVX2Advanced Vector Extensions 2
ABMAdvanced Bit Manipulation
BMI1Bit Manipulation Instruction Set 1
BMI2Bit Manipulation Instruction Set 2
FMA33-Operand Fused-Multiply-Add
AESAES Encryption Instructions
RdRandHardware RNG
SHASHA Extensions
ADXMulti-Precision Add-Carry
CLMULCarry-less Multiplication Extension
F16C16-bit Floating Point Conversion
x86-1616-bit x86
x86-3232-bit x86
x86-6464-bit x86
RealReal Mode
ProtectedProtected Mode
SMMSystem Management Mode
FPUIntegrated x87 FPU
SMTSimultaneous Multithreading
AMD-ViAMD-Vi (I/O MMU virtualization)
AMD-VAMD Virtualization
SenseMISenseMI Technology


Further information: Zen+ § Die

raven ridge die.png

raven ridge die (annotated).png
Facts about "Athlon 300U - AMD"
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
Athlon 300U - AMD#pcie +
base frequency2,400 MHz (2.4 GHz, 2,400,000 kHz) +
bus typePCIe 3.0 +
clock multiplier24 +
core count2 +
core namePicasso +
designerAMD +
die area209.78 mm² (0.325 in², 2.098 cm², 209,780,000 µm²) +
familyAthlon +
first announcedJanuary 6, 2019 +
first launchedJanuary 6, 2019 +
full page nameamd/athlon/300u +
has advanced vector extensionstrue +
has advanced vector extensions 2true +
has amd amd-v technologytrue +
has amd amd-vi technologytrue +
has amd sensemi technologytrue +
has ecc memory supporttrue +
has featureAdvanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Encryption Standard Instruction Set Extension + and SenseMI Technology +
has simultaneous multithreadingtrue +
has x86 advanced encryption standard instruction set extensiontrue +
instance ofmicroprocessor +
integrated gpuRadeon Vega 3 +
integrated gpu designerAMD +
integrated gpu max frequency1,200 MHz (1.2 GHz, 1,200,000 KHz) +
isax86-64 +
isa familyx86 +
l1$ size0.188 MiB (192 KiB, 196,608 B, 1.831055e-4 GiB) +
l1d$ description8-way set associative +
l1d$ size0.0625 MiB (64 KiB, 65,536 B, 6.103516e-5 GiB) +
l1i$ description4-way set associative +
l1i$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l2$ description8-way set associative +
l2$ size1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) +
l3$ size4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) +
ldateJanuary 6, 2019 +
manufacturerGlobalFoundries +
market segmentMobile +
max cpu count1 +
max memory65,536 MiB (67,108,864 KiB, 68,719,476,736 B, 64 GiB, 0.0625 TiB) +
max memory channels2 +
max operating temperature105 °C +
microarchitectureZen+ +
min operating temperature0° C +
model number300U +
nameAthlon 300U +
packageSocket FP5 +
part numberYM300UC4T2OFG +
process12 nm (0.012 μm, 1.2e-5 mm) +
series300 +
supported memory typeDDR4-2400 +
tdp15 W (15,000 mW, 0.0201 hp, 0.015 kW) +
tdp down12 W (12,000 mW, 0.0161 hp, 0.012 kW) +
tdp up35 W (35,000 mW, 0.0469 hp, 0.035 kW) +
technologyCMOS +
thread count4 +
transistor count4,940,000,000 +
turbo frequency (1 core)3,300 MHz (3.3 GHz, 3,300,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +