When it comes to upgrades, few purchases rival the impact of a new monitor. The right screen can give you a sharper picture, more vibrant colors, and a smoother gaming experience.

When shopping for a new monitor, first consider whether your video card supports AMD's FreeSync or Nvidia's G-Sync anti-tearing technology. Consider the panel refresh rate (higher is better) and then think about the panel size you want and the resolution you intend to play at.

This weekend, Dell is slashing prices on select monitors during its semi-annual sale. Even better, you can stack coupon code "SAVE17" to take an extra 17 percent off sale prices. (The coupon only works with items marked "save an extra 17%.") Deals include:

Alienware 34-inch Curved G-Sync Monitor (2560 x 1080) for $733.30 via "SAVE17" ($466 off)
Alienware 34-inch Curved G-Sync Monitor (3440 x 1440) for $772.72 via "SAVE17" ($727 off)

That's the first time both monitors have been on sale simultaneously and the best price we've seen for the 1440p model.

Alternatively, B&H Photo Video is taking $100 to $250 off select Acer Predator gaming monitors with prices starting at $499.99. Deals include:

Acer Predator XB1 27-inch G-Sync Monitor for $499.99 ($100 off)
Acer Predator Z1 31.5-inch G-Sync Monitor for $599.99 ($100 off)
Acer Predator 32-inch G-Sync IPS Monitor for $849.99 ($250 off)

Favorite Gaming Monitor Deals Now

LG 34-inch FreeSync Monitor w/ Editing Package for $289.99 ($365 off)
HP Pavilion 32-inch QHD Monitor w/ HDR for $349.99 ($100 off)
Dell 28-inch 4K Monitor for $285 ($314 off)
Asus ROG Swift 34-inch Curved Monitor for $899.99 ($99 off)
Dell 27-inch 1080p FreeSync Monitor for $179.99 ($70 off)
LG 27-inch 1080p FreeSync IPS Monitor for $144.95 ($50 off)