What's the maximal L3 cache for any of the models given?
CREATE TABLE "7100_series_tulsa" (
  "model" text,
  "speed_g_hz" text,
  "l2_cache_mb" real,
  "l3_cache_mb" real,
  "fsb_m_hz" real,
  "tdp_w" real
);
SELECT MAX("l2_cache_mb") FROM "7100_series_tulsa";