CAT8 vs CAT7 Ethernet Cable: Do You Really Need the Upgrade?

If you've been shopping for Ethernet cables in Australia, you've probably noticed CAT8 cables sitting on shelves alongside CAT7 and CAT6. But do you actually need CAT8, or is CAT7 more than enough for a gaming PC setup?

What Is CAT8 Ethernet Cable?

CAT8 is the latest standard in twisted-pair Ethernet cabling, capable of supporting speeds up to 40Gbps over distances up to 30 metres. It uses 2000MHz bandwidth — four times higher than CAT7's 600MHz. In data centres handling massive traffic loads, this matters enormously.

What Is CAT7 Ethernet Cable?

CAT7 supports speeds up to 10Gbps and 600MHz bandwidth. For a home gaming setup, this far exceeds what any Australian NBN plan or gaming scenario actually requires. NBN top plans cap at around 1Gbps — CAT7 handles that with room to spare.

Speed Comparison

In practical terms for Australian homes: NBN 1000 delivers ~1Gbps. CAT6 handles this comfortably. CAT7 handles it with 10x headroom. CAT8 handles it with 40x headroom. Unless you're running a home data centre or multiple 10GbE NAS devices simultaneously, the real-world difference between CAT7 and CAT8 is zero for gaming.

Price Difference in Australia

CAT8 cables typically cost 2–3x more than CAT7 cables of the same length in Australian stores. For a 1–5 metre cable from your router to your gaming PC, the performance gain is nil. CAT7 flat cables at around $3–5 AUD are the sweet spot — affordable, durable, and genuinely future-proof for home use.

Which Should You Buy?

For gaming desktops and home setups: buy CAT7. For a data centre or 10GbE network infrastructure: CAT8 makes sense. The CAT8 premium is wasted money for 99% of Australian home gamers.