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Black tower gaming desktop with angled front panel and OMEN branding

HP

HP OMEN Obelisk 875 gaming PC i7-8700 16GB 256GB+2TB RTX 2080

SKU CH-CQEA-CWRYK MPN 875

A gaming desktop with a 6-core Intel Core i7-8700 processor, 16GB DDR4 memory, 256GB NVMe SSD plus 2TB HDD, and an NVIDIA GeForce RTX 2080 graphics card with 8GB GDDR6

  • TypeGaming & Entertainment
  • UsageConsumer
  • ColorBlack
  • ProcessorIntel Core i7-8700
  • Processor Main Features64 bit 6-Core Processor
  • Memory16GB DDR4
  • 6-core Intel i7-8700 up to 4.6GHz powers demanding games
  • RTX 2080 8GB GDDR6 drives high-frame-rate 1440p and VR
  • 256GB NVMe SSD plus 2TB HDD gives fast boot and mass storage
  • 16GB DDR4 2666MHz handles multitasking and streaming
  • Wi-Fi 5 and Gigabit LAN keep online play stable

Tower gaming desktop

The HP OMEN Obelisk 875 is a tower gaming desktop built around an Intel Core i7-8700 processor with six cores reaching 4.6 GHz turbo. It pairs 16 GB of DDR4 memory at 2666 MHz with a 256 GB NVMe SSD and a 2 TB hard drive. An NVIDIA GeForce RTX 2080 with 8 GB GDDR6 provides dedicated graphics, and Windows 10 Home is pre-installed. A wired keyboard and mouse are included.

Buyers who need VR-ready performance

This system suits players who want VR-ready performance and fast load times from NVMe storage in a case that opens with a button press for internal access. The 500 W power supply and single 16 GB memory module leave limited headroom for major GPU upgrades or multi-GPU setups. Buyers who need more than 32 GB of RAM or a higher-wattage PSU for future graphics cards should look at something else.

8 GB GDDR6 video memory

The RTX 2080 card carries 8 GB of GDDR6 video memory, which determines the texture resolution and frame-buffer capacity available for modern titles at high settings. This single specification decides whether the desktop meets the graphical demands of your preferred games and VR applications.

Highlights

  • 6-core Intel i7-8700 up to 4.6GHz powers demanding games
  • RTX 2080 8GB GDDR6 drives high-frame-rate 1440p and VR
  • 256GB NVMe SSD plus 2TB HDD gives fast boot and mass storage
  • 16GB DDR4 2666MHz handles multitasking and streaming
  • Wi-Fi 5 and Gigabit LAN keep online play stable

Specifications

BrandHP
Model875
Part Number875i787208R-16256n2H
TypeGaming & Entertainment
UsageConsumer
ColorBlack
ProcessorIntel Core i7-8700
Processor Main Features64 bit 6-Core Processor
Memory16GB DDR4
Storage256GB + 2TB
AudioSound card - Integrated
EthernetGigabit Ethernet
Wireless CardWi-Fi 5 (802.11ac)
Power Supply500W
MonitorMonitor not included
KeyboardWired Keyboard
MouseWired Mouse
Operating SystemWindows 10 Home 🙋‍♀️Microsoft Windows 11 Pro Upgrade
‍👉Check ABS/Helix computers with Windows 11
‍👉Check gaming pc with Windows 11 Pro
CPU TypeIntel Core i7 8th Gen
CPU NameIntel Core i7-8700
Turbo Frequency4.6GHz
GPU/VGA TypeGeForce RTX 2080
GPU Memory8 GB GDDR6
Graphics CardNVIDIA GeForce RTX 2080
Graphics InterfacePCI Express x16
Virtual Reality ReadyYes
Memory Capacity16GB DDR4
Memory SpeedDDR4 2666
Memory Spec16 GB x 1
Memory Slot (Total)2
Memory Slot (Available)1
Memory Slots (Available/Total)1/2
Maximum Memory Supported32 GB
SSD256GB
HDD2TB
HDD InterfaceSATA
Storage Spec256GB NVMe SSD + 2TB HDD
Optical Drive TypeNo
Screen SizeNo Screen
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
WLAN802.11ac Wireless LAN
WiFi GenerationWi-Fi 5
BluetoothBluetooth 4.2
Front USB2
Front Audio Ports2
Video Ports1 x HDMI, 3 x DisplayPort, 1 x USB-C VirtualLink
Rear USB6
RJ451 port
Rear Audio Ports3 ports
Mouse TypeWired Mouse
Keyboard TypeWired Keyboard
Dimensions (H x W x D)17.05 x 14.06 x 6.5 in
Weight22.2 lb
Package TypeRetail

Questions about this item

How do I open the Obelisk 875 case to add parts, and what step do people miss?

Press the release button on the side panel to swing it open; the step often missed is ensuring the panel clicks fully shut again so the safety switch engages and the system will power on.

Which memory slots are free for a future RAM upgrade on this i7-8700 system?

The board has four DDR4 slots and ships with one 16 GB module at 2666 MHz, leaving three slots open for up to 32 GB total.

What is the first limit reached during long gaming sessions with the 500 W supply and RTX 2080?

The 500 W power supply sets the ceiling; sustained loads from the 8 GB GDDR6 card and 6-core CPU can hit that limit before thermals become an issue.

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