GX4000 The Amstrad GX4000, commonly known as the GX4000, is a third generation (1983-2003) video game console developed and distributed by Amstrad. It was released in September of 1990 in Europe at a retail price of £99.99. The console was not released outside Europe. The GX4000 was Amstrad's short-lived attempt to enter the games console market, being primarily a home computer manufacturer. The console was discontinued in late 1991. Amstrad 1990 1990-09-01 September 1, 1990 Console 3-4 DA4A3B E5B3B2 9E4968 DBD9D4 C02520 Konsol