The costlier $699 tier sports a NVIDIA GeForce GTX 760 backed by an Intel Core i3-4330 3.50 GHz. Both the specs have 500GB HDD space, 8GB DDR3 RAM and same motherboard.
All the Steam Machines due in the second half of this year will run the latest SteamOS version, which is Valve’s own free operating system based off the open source Linux.
No matter what spec machine you choose with preconfigured components, the Steam Machines will be entirely open to customisation provided they can physically fit. For those with a powerful enough PC a Steam Machine won’t be necessary as Steam is set to be updated with In-Home Streaming.
CYBERPOWERPC Steam Machine A - $499
Case: CYBERPOWERPC Steam Machine Gaming Chassis
Graphics: AMD Radeon R9 270 2GB GDDR5
Processor: AMD A6-6400K 3.90 GHz
Storage: 500GB SATA-III 7200 RPM HDD
RAM: 8GB DDR3 1600MHz Dual Channel Memory
Chipset: mITX motherboard w/ 802.11 AC WiFi + Bluetooth
Steam Controller
Steam OS
CYBERPOWERPC Steam Machine I - $699
Case: CYBERPOWERPC Steam Machine Gaming Chassis
Graphics: NVIDIA GeForce GTX 760 2GB GDDR5
Processor: Intel Core i3-4330 3.50 GHz
Storage: 500GB SATA-III 7200 RPM HDD
RAM: 8GB DDR3 1600MHz Dual Channel Memory
Chipset: mITX motherboard w/ 802.11 AC WiFi + Bluetooth
Steam Controller
Steam OS
Of course the savvy could likely kit out their own mini-PC with more power, and then just buy a Steam Controller.