Yeah. Cisco 3750s are notorious for having small buffers. They are more appropriately used for connecting desktops in a office.

Cisco 4948s are better positioned for top of rack and are more comparable to the Juniper EX4200s that were shown to be better in the Tolly Report shown in the post.

In many cases this is a good thing (tm). The large buffers tend to "hide" retransmits and dropped packets with a buffelength of latency, which will instead increase the burstiness pattern in many cases.