Description

PRODUCT DESCRIPTION

This is a Cyrix FasMath CX-83D87-33-GP, a 33 MHz floating-point unit (FPU) introduced in 1989 as a third-party alternative to Intel’s 80387 math coprocessor.

Cyrix designed the FasMath series to be faster and more efficient than Intel’s own FPUs, making them popular upgrades for systems based on 80386 processors. This specific model is the 33 MHz GP variant, intended for high-performance 386DX systems.

Today, the CX-83D87-33-GP is a sought-after collectible among vintage hardware enthusiasts due to its rarity and role in Cyrix’s early competition with Intel.

👉 Chip is untested, sold as a collector’s item.

SPECIFICATIONS

Manufacturer: Cyrix
Model: FasMath CX-83D87-33-GP
Year: 1989
Type: Floating Point Unit (Math Coprocessor)
Clock Speed: 33 MHz
Compatible with: Intel 80386DX CPUs
Package: Ceramic PGA
Condition: Used, untested, collectible
Check out our vintage ceramic CPU collection here!

Additional information

Weight	0,040 kg

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Shipping & Delivery

Shipping

Shipping Time – Orders are processed promptly, with shipping taking 1-3 days. Standard delivery typically ranges from 7 to 14 working days. For faster delivery, we also offer an express shipping option, which usually arrives within 3 to 5 working days. Please note that in some unexpected cases, packages may experience delays.
Tax – We ship all orders from our European warehouse. Customers in the U.S. and EU countries can enjoy tax-free shipping, as no import duties will be applied.

Packages will be delivered using a Premium postal service in your region.

We guarantee the arrival of your items. If you do not receive your order, please check the tracking information. While delays are rare, they can occur. If you do not receive your order or are not satisfied, you can return it within 30 days of shipment. We will either issue a full refund or reship the item at no additional cost.

Shipping

Shipping Time – Orders are processed promptly, with shipping taking 1-3 days. Standard delivery typically ranges from 7 to 14 working days. For faster delivery, we also offer an express shipping option, which usually arrives within 3 to 5 working days. Please note that in some unexpected cases, packages may experience delays.
Tax – We ship all orders from our European warehouse. Customers in the U.S. and EU countries can enjoy tax-free shipping, as no import duties will be applied.

Packages will be delivered using a Premium postal service in your region.

We guarantee the arrival of your items. If you do not receive your order, please check the tracking information. While delays are rare, they can occur. If you do not receive your order or are not satisfied, you can return it within 30 days of shipment. We will either issue a full refund or reship the item at no additional cost.