Alik Griffin tested the most popular memory cards in the Nikon D850 DSLR camera: XQD, UHS-II and UHS-I SD. Here are the results:
| Memory Cards | USB 3 read | USB 3 write | Nikon D850 |
| XQD | |||
| LEXAR 2933X | 344 MB/s | 202 MB/s | 115.45 MB/s |
| SONY G 400MB/S | 330 MB/s | 188 MB/s | 113.84 MB/s |
| SONY M 150MB/S | 347 MB/s | 111 MB/s | 97.53 MB/s |
| SONY M 80MB/S | 276 MB/s | 30 MB/s | 34.72 MB/s |
| UHS-II | |||
| SONY G | 269.3 MB/s | 234.5 MB/s | 97.88 MB/s |
| DELKIN 250 | 271.4 MB/s | 231.3 MB/s | 96.48 MB/s |
| Sandisk Extreme PRO 300 | 273.9 MB/s | 238.9 MB/s | 96.30 MB/s |
| TOSHIBA Exceria PRO | 258.8 MB/s | 226.5 MB/s | 92.69 MB/s |
| LEXAR 2000X | 272.7 MB/s | 244.5 MB/s | 92.30 MB/s |
| TRANSCEND | 290.2 MB/s | 182.1 MB/s | 91.21 MB/s |
| FUJIFILM Elite II | 294.0 MB/s | 181.6 MB/s | 90.27 MB/s |
| Sandisk Extreme PRO 280 | 260.5 MB/s | 214.8 MB/s | 89.79 MB/s |
| HOODMAN Steel 2000X | 268.7 MB/s | 183.9 MB/s | 88.05 MB/s |
| ADATA V90 | 256.5 MB/s | 231.7 MB/s | 81.50 MB/s |
| SONY M | 253.2 MB/s | 91.62 MB/s | 68.34 MB/s |
| DELKIN 1900X | 273.3 MB/s | 97.3 MB/s | 66.28 MB/s |
| LEXAR 1000X | 153.4 MB/s | 84.30 MB/s | 55.25 MB/s |
| UHS-I | |||
| Sandisk Extreme PRO U3 | 98.6 MB/s | 90.8 MB/s | 65.29 MB/s |
| KINGSTON U3 | 98.1 MB/s | 90.4 MB/s | 64.75 MB/s |
| DELKIN 633X U3 | 98.3 MB/s | 88.7 MB/s | 62.39 MB/s |
| SONY U3 – old model | 96.5 MB/s | 84.5 MB/s | 58.86 MB/s |
| SAMSUNG PRO+ U3 | 97.5 MB/s | 87.3 MB/s | 58.78 MB/s |
| TRANSCEND U3 | 96.7 MB/s | 84.9 MB/s | 56.11 MB/s |
| SAMSUNG PRO U1 | 96.3 MB/s | 82.2 MB/s | 56.03 MB/s |
| SAMSUNG PRO U3 | 97.7 MB/s | 78.6 MB/s | 53.78 MB/s |
| PNY Elite U3 | 96.5 MB/s | 66.1 MB/s | 49.94 MB/s |
| Sandisk Extreme Plus U3 | 99.0 MB/s | 64.4 MB/s | 49.61 MB/s |
| SONY U3 – new model | 96.7 MB/s | 56.2 MB/s | 47.89 MB/s |
| PNY Elite U1 | 96.5 MB/s | 66.5 MB/s | 47.43 MB/s |
| LEXAR 633X U3 | 93.3 MB/s | 67.3 MB/s | 46.86 MB/s |
| Sandisk Extreme U3 | 72.43 MB/s | 54.1 MB/s | 42.69 MB/s |
| LEXAR 600X U1 | 95.4 MB/s | 64.8 MB/s | 42.04 MB/s |
| SANDISK Ultra U1 | 99.3 MB/s | 36.1 MB/s | 23.69 MB/s |
| SAMSUNG U1 Evo | 47.7 MB/s | 27.3 MB/s | 20.23 MB/s |
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