360° View - Silverstone Tundra TD03 - Water Block Information on Frostytech's test methodology is available here.
The waterblock and pump are housed in a minimalist extruded aluminum metal square that stands 34mm tall, with nothing but two 8mm slots on either side for the aluminum mounting arms to attach. The fill port is located in one of these slots, out of view. Power is supplied to the pump by a 3-pin motherboard fan header. There is no internal illumination to indicate when the pump is powered.
The chrome plated aluminum waterblock measures 60x55mm and has one 3-pin power connector. The 10mm OD white FEP tubes are mounted on plastic 90-degree connectors which do not swivel.
The copper base plate that makes direct contact with the processor heatspreader is 1.5mm thick and measures 55x55mm in size.

360° View - Silverstone Tundra TD03 - Heat Exchanger Information on Frostytech's test methodology is available here.
	The 45mm thick aluminum heat exchanger measures 124x159mm in size and supports two 120mm fans, mounted in a push-pull configuration on opposite sides. A 31CM length of FEP tubing connects the waterblock to the heat exchanger.
	Fans are attached on either side of the heat exchanger. The heat exchanger tubing connectors are fixed and do not swivel.
	The white 10mm OD FEP tubing is corrugated to prevent kinking. The actual heat exchanger is hidden behind decorative grey aluminum trim and plastic face plates.

Base Finish and Flatness

Flipping a heatsink over to inspect the business end is often a simple indicator of overall cooler quality. More practically speaking, a heatsink is in many ways only as effective as the contact it makes with the processor - the flatter and smoother the better. Base finish is one of the criteria that Frostytech measure in the course of evaluating heatsinks, and it involves two distinct aspects. Surface Finish is the first; this is calculated with the aid of Surface Roughness Comparator that has a cross section of common machine surface finishes and their numerical surface roughness equivalents in microinches. The second is Surface Flatness. This is tested with an engineer's straight edge or proven flat surface, in two axes.

The copper base plate of the Silverstone Tundra TD03 has a machined surface finish with a surface roughness of approximately ~16 microinches. The copper base plate is very slightly convex in one axis and more or less flat (with a slight waviness) in the other axis.

Frostytech's synthetic thermal test platforms use a flat synthetic CPU die interface for a couple obvious reasons, but most crucially because the curvature of actual processor heatspreaders has never been standardized.

Next, acoustic measurements and then AMD and Intel synthetic thermal test result charts.