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Best RAM for Factorio (Mega-Base)

For Factorio (Mega-Base), buy 16GB dual-channel UDIMM near DDR5-6000 CL30 (2x16GB dual-channel); step to 32GB when mods or ultra streaming pile on. Factorio is famous for its extreme engine optimization, but building massive "Mega-Bases" (reaching 10,000+ Science Per Minute) places an extreme load on memory latency and single-thread CPU cache.

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Recommended

16 GB

Enthusiast

32 GB

Sweet-spot speed

DDR5-6000 CL30

Kit layout

2x16GB dual-channel

Live kits for Factorio (Mega-Base)

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Best match

Corsair Vengeance LPX 128GB (4x32GB) DDR4 3600 (PC4-28800) C18 1.35V Desktop Memory - Black

$194.99 · $1.52/GB

In stock

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DDR4 kit

Kingston Fury Beast 128GB (4x32GB) 3200MHz DDR4 CL16 Desktop Memory Kit of 4 KF432C16BBK4/128, Black

$199.99 · $1.56/GB

In stock

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DDR5 kit

CORSAIR Vengeance RGB DDR5 RAM 96GB (2x48GB) 6000MHz CL30 Intel XMP iCUE Compatible Computer Memory - Black (CMH96GX5M2B6000C30)

$189.99 · $1.98/GB

In stock

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Why Factorio (Mega-Base) stutters

Factorio is famous for its extreme engine optimization, but building massive "Mega-Bases" (reaching 10,000+ Science Per Minute) places an extreme load on memory latency and single-thread CPU cache. Factorio's C++ engine ticks (Updates Per Second - UPS) are directly bounded by system RAM access times.

What RAM kit to buy

For Factorio (Mega-Base), shop matched dual-channel UDIMM kits at 16GB (2x16GB dual-channel) before spending on RGB or extreme CL. Populate the primary dual-channel slots (usually A2/B2) and enable XMP/EXPO so DDR5-6000 CL30 actually trains for Factorio (Mega-Base). Reserve 32GB builds for heavy Automation / Strategy mod stacks or Custom C++ Engine asset packs on Factorio (Mega-Base). Live kits below prefer in-stock DDR4/DDR5 modules that clear the 16GB floor for factorio-megabase.

Engine, genre & mod notes

Factorio (Mega-Base) (Custom C++ Engine) still benefits from matched dual-channel UDIMM bandwidth when the world streams or sims spike. Simulation/strategy genres scale RAM with entity count and UI mods — plan for the late-game save, not the tutorial island. Mod / extra load: Optimized for low-latency dual-channel setups. Memory latency (CAS latency) is the single most important factor for UPS scaling. Released 2020 · PC focus · min 8GB / rec 16GB / enthusiast 32GB.

Capacity selector & sweet-spot

Select a hardware profile for Factorio (Mega-Base).

Target capacity

16GB

Smooth gameplay, steadier frametimes, and room for Discord/browser multitasking.

Platform: PCCustom C++ Engine

Sweet-spot setup

Sweet-spot speed

DDR5-6000 CL30 or DDR4-3600 CL14

Configuration

2x16GB dual-channel

Stutter & frame drops: Factorio is famous for its extreme engine optimization, but building massive "Mega-Bases" (reaching 10,000+ Science Per Minute) places an extreme load on memory latency and single-thread CPU cache. Factorio's C++ engine ticks (Updates Per Second - UPS) are directly bounded by system RAM access times.

CC & modding impact: Optimized for low-latency dual-channel setups. Memory latency (CAS latency) is the single most important factor for UPS scaling.

Representative logs and Event Viewer-style signals when Factorio (Mega-Base) runs out of memory or hits a single-channel bottleneck.

System memory diagnostics

[SYSTEM] Factorio Tick Scheduler: active entity count exceeds 4,000,000

[WARNING] UPS limited by Memory Controller latency thresholds

[SUCCESS] Latency tuned: absolute memory access time minimized to 58ns

[HELP] Upgrade to a sweet-spot dual-channel kit (DDR5-6000 CL30 or DDR4-3600 CL14).

Factorio (Mega-Base) RAM FAQ

Why does memory latency matter so much for Factorio?
Because Factorio needs to update millions of belts, inserters, and assemblers every single frame (60 ticks per second), the CPU must wait for memory data transfer. Lower CAS latency (e.g. CL30 or CL14) directly scales up late-game UPS.
Is 32GB RAM overkill for Factorio vanilla?
Yes, 16GB is more than enough for normal bases. Upgrading to 32GB CL30 is only recommended for dedicated megabase builders running massive automated layouts.
Is 8GB enough for Factorio (Mega-Base)?
8GB is the floor to launch Factorio (Mega-Base). Expect paging in heavier automation / strategy moments — 16GB dual-channel UDIMM is the practical target, with 32GB for mods/enthusiast presets.
Should I buy DDR4 or DDR5 for Factorio (Mega-Base)?
Match the motherboard. Either generation works if dual-channel and capacity are right. Sweet-spot speed: DDR5-6000 CL30 or DDR4-3600 CL14.

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