Decide Whether To Upgrade Your Gaming PC Or Buy New

The game stutters, the fan sounds worried, and you are stuck between ordering one graphics card or an entirely new machine. This weighs which single upgrade gives the biggest jump, whether older parts will just bottleneck it anyway, against the cost of starting fresh, then gives one clear recommendation.

<context>
Your current PC struggles to run {GAME_NAME} smoothly, and you are deciding whether to upgrade individual components or buy a new pre-built machine. Current specs: [six year old graphics card, otherwise decent processor and memory].
</context>

<task>
**Weigh up the decision:**
1. Which single upgrade would give the biggest performance jump for the money
2. Whether other components are old enough to bottleneck a single upgrade
3. Cost of a targeted upgrade versus a full new pre-built system
4. A clear recommendation: upgrade one part, upgrade several, or replace entirely
</task>

<output_format>
- Short reasoning under each point
- One final sentence stating the recommendation and rough cost
</output_format>