Golf club head with variable face thickness

A face for a golf club head comprising:

• a central region having a first average thickness and a first perimeter with an elliptical shape;
• an outer edge defining a perimeter where the face makes contact with a golf club head body, the outer edge having a non-elliptical;
• a first intermediate region located between the first perimeter and the outer edge, the first intermediate region having a second average thickness and a second perimeter;
• a second intermediate region located between the second perimeter and the outer edge, the second intermediate region having a third average thickness and a third perimeter with a shape that is approximately the same as the shape of the outer edge;
• a third intermediate region located between the third perimeter and the outer edge, the third intermediate region having a fourth average thickness and a fourth perimeter with a shape that is approximately the same as the shape of the outer edge;
• and
• an X-shaped thickness pattern having four legs and a central section connecting each of the four legs,
• wherein the X-shaped thickness pattern has a thickness greater than the second average thickness and the third average thickness,
• wherein the central section of the X-shaped thickness pattern is superimposed over the central region, and
• wherein each of the four legs extends from the central section towards the outer edge and intersects at least the first intermediate region.