A typical velociraptor was 2 m long (snout to tail-tip), 0.5 m high, and weighed up to 20 kg.
It had a 9 cm sharp, sickle-shaped, retractable claw on each foot.
Imagine a large, psychotic goose dual-wielding straight razors.
Not *Jurassic Park*, but still terrifying.
UTAHRAPTOR, on the other hand, is like if an ostrich took steroids and got the Captain America super-serum.
They were 5–6 metres (16–20 ft) long and weighed ~250–350 kilograms (550–770 lb), and I suppose it's up for debate whether the serrated teeth or 15 inch sickle claw would kill you faster.
Most argue that Utahraptor was what was really in Jurassic Park, but the feathers completely change the vibe. I'd argue that certain bipedal Pseudosuchians were more aesthetically similar, save for those plantigrade feet.
ISTM they were the size of a small cassowary, but probably scarier because carnivorous. If they had pack behaviour (as opposed to just being ornery, mostly solitary fructivires like cassowaries) they'd have been utterly terrifying.