Parts/CPUs/AMD Opteron 6274 (Interlagos)
Why this part
Bulldozer shared one floating-point unit between each pair of integer cores, so its sixteen cores delivered eight full-width FP results per clock. On a general server that was a poor trade and AMD lost most of a decade of market share to it. On Titan it mattered less than usual, because the floating-point work had already been moved onto 18,688 K20X GPUs and the Opteron's job was to keep them supplied. Titan is the clearest early case of a host CPU chosen on price and core count rather than on arithmetic throughput.
Systems using this part
- Systems
- 2
- Rmax underneath
- 17.59 PFlop/s
- Units recorded
- 18,688
1 of 2 edges disclose a quantity
| System | Role | Country | Units | System Rmax | Supplied by | Rank |
|---|---|---|---|---|---|---|
| Titan 2012-11 | CPU | USA | 18,688 | 17.59 PFlop/s | AMD | #1 → |
| Xiuhcoatl 2012-01-25 | CPU | Mexico | - | - | AMD | - |
“Units recorded” sums only the edges where a public source states a quantity. It is a floor, not a total, and should never be read as installed base.