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Black mid-tower gaming desktop with RGB keyboard and mouse

CyberpowerPC

CyberpowerPC GML70420 gaming PC Ryzen 9 9900X3D 32GB DDR5 RTX 5070 2TB NVMe

SKU CH-X3W5-FDTHG MPN GML70420

Gaming desktop with a 12-core Ryzen 9 9900X3D processor, 32GB DDR5 memory, 2TB PCIe 4.0 NVMe storage and GeForce RTX 5070 graphics running Windows 11 Home

  • ProcessorAMD Ryzen 9 9000 Series
  • Memory size32 GB DDR5
  • Storage drive2 TB PCIe 4.0 NVMe
  • GraphicsGeForce RTX 5070
  • ChipsetAMD B850
  • CPUAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D with 128 MB L3 cache for multi-thread speed
  • 32 GB DDR5 memory supports up to 192 GB total capacity
  • RTX 5070 12 GB GPU delivers modern graphics performance
  • 2 TB PCIe 4.0 NVMe SSD provides fast storage access
  • 1000 W power supply and liquid cooling keep components stable

Ryzen 9 9900X3D 12-core desktop

This CyberpowerPC GML70420 is a pre-built gaming desktop powered by a 12-core AMD Ryzen 9 9900X3D processor with 128 MB L3 cache. It ships with 32 GB of DDR5 memory, a 2 TB PCIe 4.0 NVMe SSD and an NVIDIA GeForce RTX 5070 graphics card. Windows 11 Home is pre-installed and a 1000 W power supply drives the system.

Ideal for high-refresh 1440p gaming and multitasking

The 12-core CPU and RTX 5070 suit players who want high frame rates at 1440p and creators who run memory-hungry applications alongside games. Buyers who need more than 32 GB of RAM or additional internal storage bays should look at a different platform.

32 GB DDR5 memory capacity

The system includes 32 GB of DDR5 across four slots with a maximum supported capacity of 192 GB. This single figure determines whether the desktop meets your current workload or requires an immediate memory upgrade.

How it compares

Measured against everything we stock in Gaming PCs, at today’s prices. Recalculated every night.

Price $2,256.99
Cheaper than about 65% of the 24,925 comparable items (median $2,694.99).
Memory size 32 GB DDR5
Typical for this category: the median of 11,703 items is 32 GB.
RAM capacity 32 GB DDR5
Typical for this category: the median of 24,338 items is 32 GB.

New to this? Buying a gaming PC with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameCyberpowerPC
Model nameGML70420
Product typeGaming & Entertainment
Recommended useConsumer
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPUAMD Ryzen 9 9900 × 3D
CPU modelAMD Ryzen 9 9900 × 3D
ChipsetAMD B850
Processor cache128 MB L3 Cache
L2 cache per processor12 MB
L3 cache per CPU128 MB
Memory
Memory size32 GB DDR5
RAM capacity32 GB DDR5
Total memory slots4
Max supported RAM192 GB
Storage
Storage drive2 TB PCIe 4.0 NVMe
SSD storage2 TB NVMe
Optical driveNo
Graphics
GraphicsGeForce RTX 5070
GPUNVIDIA GeForce RTX 5070
Audio & video
Sound channelsIntegrated 7.1 Channel Audio
Connectivity
Wi-Fi standardWi-Fi 6
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Wi-Fi802.11ax Wireless LAN
Bluetooth support5.3
Ports & slots
Front USB ports3
Video connectors1 x HDMI / 3 x DisplayPort
Rear USB ports5
PCIe expansion slots1 x PCI Express x 16
2 x PCI Express x 1
2 x M.2
Power
Power supply1000 W
Size & build
Overall dimensions18.1 in × 9.2 in × 20 in
Product weight40 lb (18.1 kg)
Shipping weight20.41 kg
Package size610 × 603 × 343 mm
In the box
Bundled mouseUSB RGB Mouse
Software
Operating systemWindows 11 Home
More details
AI capabilityAI Ready
KeyboardUSB RGB Keyboard

Questions about this item

How do I install additional DDR5 memory in the four slots on the B850 motherboard, and what step do people often miss?

Power off the system, open the case, align each DDR5 module with the slot notch and press firmly until both retention clips click; the step most people miss is enabling EXPO in the BIOS so the new memory runs at its rated speed instead of the default JEDEC frequency.

Which component will likely need replacement first during the life of this PC?

The 1000W power supply is the part most likely to require replacement after several years of continuous high-load gaming, as capacitors age faster than the Ryzen 9 9900X3D, RTX 5070 or the 2TB NVMe SSD.

What thermal limit appears first when the Ryzen 9 9900X3D and RTX 5070 run sustained workloads inside this chassis?

The CPU typically hits its thermal throttle point before the GPU, because the liquid cooler must dissipate the 12-core processor's heat in a shared loop while the RTX 5070's own cooler has a direct path to exhaust.

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