After the launch of Windows 10 on July 29 we will stop selling 3DMark Vantage on Steam.
If you own 3DMark Vantage you can continue to use it in Steam. It won't disappear from your Steam library.
After July 29, 2015, 3DMark Vantage will only be available to buy from the Futuremark Store. We plan to continue to support 3DMark Vantage for a while yet, so if you need help, please post on our support page.
3DMark Vantage keys bought from the Futuremark Store, or received as a gift, trade or promotion can still be added to Steam.
For benchmarking modern hardware running Windows 10, we recommend the Fire Strike and Sky Diver tests in the latest version of 3DMark.