Golf club head with multi-material face

A golf club head comprising:

• a striking face portion located at a frontal portion of said golf club head;
• and
• a body portion attached to an aft portion of said striking face portion;
• wherein said striking face portion further comprises;
• a first outer layer, made out of a first material, forming an exterior surface of said striking face portion;
• a second backing layer, made out of a similar material as said first outer layer, forming an interior surface of said striking face portion;
• wherein said first outer layer and said second backing layer combine to form a cavity substantially near a geometric center of said striking face portion;
• and
• a chip insert, made out of a second material of steel, placed within said cavity;
• wherein said striking face portion has a Face Thickness Ratio of less than about 0.875, said Face Thickness Ratio is defined as a thickness of said first outer layer at said geometric center divided by a thickness of said second backing layer at said geometric center.