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Blue mid-tower gaming PC with 240mm ARGB liquid cooler visible through side panel

Thermaltake

Thermaltake T3HB-B850-57T-LCS gaming PC Ryzen 7 7800X3D RTX 5070 Ti 32GB DDR5 2TB NVMe

SKU CH-6QZZ-S7BSR MPN T3HB-B850-57T-LCS

Gaming desktop with an 8-core Ryzen 7 7800X3D, 32 GB DDR5 at 6400 MT/s, RTX 5070 Ti 16 GB GDDR7, 2 TB NVMe and 240 mm ARGB AIO cooling

  • ProcessorAMD Ryzen 7 7000 Series
  • Memory size32 GB DDR5
  • Graphics memory16 GB GDDR7
  • Storage drive2 TB SSD
  • ChipsetAMD B850
  • CPUAMD Ryzen 7 7800 × 3D
  • Ryzen 7 7800X3D with 96 MB L3 cache accelerates gaming workloads
  • RTX 5070 Ti 16 GB GDDR7 powers high-refresh 1440p and 4K play
  • 32 GB DDR5 6400 memory keeps multitasking smooth
  • 2 TB NVMe SSD loads games and apps quickly
  • 240 mm ARGB AIO cooler sustains CPU performance under load

Reactor 7870TH Gaming Desktop

The Thermaltake Reactor 7870TH is a pre-built gaming desktop aimed at enthusiasts who want a ready-to-play system. It ships with Windows 11 Home installed and carries the AI Ready designation. Buyers who prefer to select every component themselves or need a workstation-class platform should look elsewhere.

32 GB DDR5 6400 and 2 TB NVMe

The system includes 32 GB of DDR5 memory running at 6400 MT/s, with the motherboard supporting up to 128 GB for future expansion. A 2 TB NVMe solid-state drive provides the primary storage; there is no mechanical hard drive included. Users planning large media libraries or extensive game collections will need to add secondary storage.

B850 Chipset with 850 W Power and 240 mm AIO

Built on an AMD B850 chipset, the platform pairs the Ryzen 7 7800X3D with an 850 W power supply and a 240 mm ARGB all-in-one liquid cooler. Connectivity covers Gigabit Ethernet, Wi-Fi 6 and Bluetooth 5.3, while audio outputs 7.1 channels. Builders requiring additional PCIe lanes or a larger radiator mount will need a different chassis.

How it compares

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

Price $2,421.99
Cheaper than about 59% 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.
Graphics memory 16 GB GDDR7
Typical for this category: the median of 10,551 items is 16 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 nameThermaltake
Model nameT3HB-B850-57T-LCS
Product typeGaming & Entertainment
Recommended useConsumer / Gaming
Product colorBlue
Processor
ProcessorAMD Ryzen 7 7000 Series
CPUAMD Ryzen 7 7800 × 3D
CPU modelAMD Ryzen 7 7800 × 3D
ChipsetAMD B850
Processor cache96 MB L3 Cache
L2 cache per processor8 MB
L3 cache per CPU96 MB
Memory
Memory size32 GB DDR5
RAM capacity32 GB DDR5
RAM type and speedDDR5 6400
Max supported RAM128 GB
Storage
Storage drive2 TB SSD
SSD storage2 TB NVMe
Hard driveNo
Optical driveNo
Graphics
Graphics memory16 GB GDDR7
GraphicsGeForce RTX 5070 Ti
GPUNVIDIA GeForce RTX 5070 Ti 16 GB
VR readyYes
Audio & video
Sound channels7.1 channels
Connectivity
Wi-Fi standardWi-Fi 6
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Wi-Fi802.11ax Wireless LAN
Bluetooth support5.3
Power
Power supply850 W
Size & build
Shipping weight19.05 kg
Package size635 × 406 × 406 mm
Software
Operating systemWindows 11 Home
More details
AI capabilityAI Ready
Cooling methodThermaltake 240 mm ARGB AIO

Questions about this item

Will the AMD B850 motherboard support my existing AM4 cooler mounting hardware?

The motherboard uses the AM5 socket so AM4 mounting brackets will not fit; the system ships with a Thermaltake 240mm ARGB AIO cooler that includes the correct AM5 hardware.

How can I verify the RTX 5070 Ti is running at full 16 GB GDDR7 capacity after setup?

Open Task Manager or GPU-Z and confirm the graphics card shows 16 GB dedicated video memory and the GDDR7 memory type.

What components are included in the box and what must be purchased separately?

The box contains the complete desktop with Ryzen 7 7800X3D, 32GB DDR5 6400 memory, 2TB NVMe SSD, RTX 5070 Ti 16 GB GDDR7, 850W power supply, 240mm ARGB AIO cooler, Wi-Fi 6, Bluetooth 5.3, Gigabit Ethernet, 7.1-channel audio and Windows 11 Home; only a monitor, keyboard and mouse need to be added.

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