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Choose More Power Without the Price Tag: Comparing the 7050SX3-48YC12-F vs. 7050SX3-48YC8-F

Arista 7050SX3-48YC12-F Terabit Systems

 

When evaluating data center switches for Tier 2 ISPs, content delivery providers, or any growing infrastructure, choosing the right model isn’t just about speed—it’s about smart capacity planning, futureproofing, and real-world economics. Today, we’re taking a closer look at two nearly identical models from Arista’s 7050X3 Series: the DCS-7050SX3-48YC12-F and the DCS-7050SX3-48YC8-F.

They may look similar on paper—but let’s unpack where they differ, and why the 48YC12-F may be the best-kept secret in high-performance networking.

 

Spec Showdown: Where the Numbers Land

Spec DCS-7050SX3-48YC8-F DCS-7050SX3-48YC12-F
25G SFP Ports 48 48
100G QSFP Ports 8 12
Max Throughput 4.0 Tbps 4.8 Tbps
Max 100G Ports 8 12
Max 50G Ports 16 24
Max 40G Ports 8 12
Total Interfaces 64 96
Latency 800 ns 800 ns
Power (Typical/Max) 124W / 301W 170W / 325W
Airflow Front-to-Rear & Reverse Front-to-Rear
Rack Units 1RU 1RU

 

What Does That Extra Throughput Really Mean?

The C12 model delivers 20% more bandwidth—4.8 Tbps vs. 4.0 Tbps. That alone means greater flexibility in uplink architecture, denser leaf-spine connectivity, or more east-west data movement for applications like distributed storage, AI/ML pipelines, or NVMe-over-Fabric backbones.

In simple terms: the C12 gives you 4 more QSFP100 ports—equivalent to adding another full 400G of uplink capacity. That can be the difference between needing an extra switch—or not.

 

Why Do Some Choose the 8-Port Model?

The DCS-7050SX3-48YC8-F remains popular for one reason: it just fits for many networks. Not everyone needs 12x100G uplinks, and 8 may be more than enough for top-of-rack (ToR) aggregation or moderate spine deployments. Plus, slightly lower power draw can be a factor in dense rack deployments where thermal budgets are tight.

 

But Here's the Catch: The C12 May Now Be Cheaper.

Due to current market dynamics, Terabit Systems is offering aggressive pricing on the 48YC12-F, making it cost-competitive—or even cheaper—than the 8-port version.

This flips the script: you get more bandwidth and more future flexibility without paying a premium.

 

Who Should Seriously Consider the C12?

  • Tier 2 ISPs and Carriers needing futureproof capacity
  • High-performance compute clusters or storage-heavy environments
  • CDN edge sites or metro PoPs with frequent east-west data movement
  • Budget-conscious buyers who want the best bang for their buck per Tbps

 

Bottom Line: Don’t Let Port Count Fool You

The DCS-7050SX3-48YC12-F is not overkill—it's smart headroom. For those seeking flexibility, long-term growth, and performance per dollar, this is your chance to step up your core or leaf network with a powerful, proven switch—and do it for less than you'd expect.

Check out our current stock and click here to email a Terabit rep today or call +1 (415) 230-4353 for special pricing before they're gone.

May 14, 2025