United Kingdom
In June 1993, 25 systems appeared in the TOP500 list.
| Rank | System | Procs | Memory(GB) | Rmax (GFlops) | Rpeak (GFlops) | Vendor |
|---|---|---|---|---|---|---|
| 12 | Y-MP C916/16128 | 16 | N/A | 13.7 | 15.238 | Cray Inc. |
| 78 | iPSC/860 | 128 | N/A | 2.6 | 5.12 | Intel |
| 88 | CM-200/16k | 512 | N/A | 2.4 | 5 | TMC |
| 91 | Y-MP8/864 | 8 | N/A | 2.144 | 2.667 | Cray Inc. |
| 98 | Y-MP8/864 | 8 | N/A | 2.144 | 2.667 | Cray Inc. |
| 115 | Y-MP8I/8128 | 8 | N/A | 2.144 | 2.667 | Cray Inc. |
| 119 | Y-MP8/864 | 8 | N/A | 2.144 | 2.667 | Cray Inc. |
| 120 | Y-MP8/864 | 8 | N/A | 2.144 | 2.667 | Cray Inc. |
| 125 | VPX240/10 | 1 | N/A | 2.11 | 2.5 | Fujitsu |
| 155 | KSR1-64 | 64 | N/A | 1.838 | 2.56 | KSR |
| 196 | CRAY-2/4-256 | 4 | N/A | 1.406 | 1.951 | Cray Inc. |
| 208 | iPSC/860 | 64 | N/A | 1.4 | 2.56 | Intel |
| 217 | CS/i860/64 | 64 | N/A | 1.3 | 2.56 | Meiko |
| 228 | Y-MP8/432 | 4 | N/A | 1.159 | 1.333 | Cray Inc. |
| 259 | CS/i860/42 | 42 | N/A | 0.97 | 1.68 | Meiko |
| 268 | KSR1-32 | 32 | N/A | 0.893 | 1.28 | KSR |
| 279 | Y-MP4E/364 | 3 | N/A | 0.881 | 0.999 | Cray Inc. |
| 301 | CS/i860/32 | 32 | N/A | 0.825 | 1.28 | Meiko |
| 367 | Y-MP4E/232 | 2 | N/A | 0.604 | 0.666 | Cray Inc. |
| 380 | Y-MP4/264 | 2 | N/A | 0.604 | 0.666 | Cray Inc. |
| 396 | Y-MP4/216 | 2 | N/A | 0.604 | 0.666 | Cray Inc. |
| 429 | CS/i860/16 | 16 | N/A | 0.445 | 0.64 | Meiko |
| 433 | CS/i860/16 | 16 | N/A | 0.445 | 0.64 | Meiko |
| 435 | VP2100/20 | 1 | N/A | 0.445 | 0.5 | Fujitsu |
| 492 | C3840 | 4 | N/A | 0.425 | 0.48 | HP |