# Samsung PRO Plus Full-Size SD 256GB (2023) vs Lexar Professional 1667x SDXC UHS-II 128GB: specs and price compared

A sourced, side-by-side comparison of the Samsung PRO Plus Full-Size SD 256GB (2023) (Samsung) and Lexar Professional 1667x SDXC UHS-II 128GB (Lexar) among memory cards. Samsung PRO Plus Full-Size SD 256GB (2023) is the cheaper of the two at $31.99.

## Side by side

| Spec | Samsung PRO Plus Full-Size SD 256GB (2023) | Lexar Professional 1667x SDXC UHS-II 128GB |
| --- | --- | --- |
| US price | $31.99 | $94.99 |
| Brand | Samsung | Lexar |
| Released | 2023 | 2019 |
| Format | sd | sd |
| Capacity (GB) | 256 | 128 |
| Speed class | u3_v30 | v60 |
| Max read (Mbps) | 180 | 250 |
| Max write (Mbps) | 130 | 120 |
| Application class | a2 | — |
| Warranty | 10 years limited | limited lifetime |

## Key differences

- Capacity (GB): Samsung PRO Plus Full-Size SD 256GB (2023) 256 vs Lexar Professional 1667x SDXC UHS-II 128GB 128
- Speed class: Samsung PRO Plus Full-Size SD 256GB (2023) u3_v30 vs Lexar Professional 1667x SDXC UHS-II 128GB v60
- Max read (Mbps): Samsung PRO Plus Full-Size SD 256GB (2023) 180 vs Lexar Professional 1667x SDXC UHS-II 128GB 250
- Max write (Mbps): Samsung PRO Plus Full-Size SD 256GB (2023) 130 vs Lexar Professional 1667x SDXC UHS-II 128GB 120
- Warranty: Samsung PRO Plus Full-Size SD 256GB (2023) 10 years limited vs Lexar Professional 1667x SDXC UHS-II 128GB limited lifetime

## What reviewers say

**Samsung PRO Plus Full-Size SD 256GB (2023)** — Only one whitelisted tester (StorageReview) benchmarked this exact 2023 full-size 256GB model; no Tom's Hardware, TechRadar, or PCMag lab review exists. StorageReview rates it a strong value: solid real-world speeds and standout random 4K IOPS, though sequential reads (158.7 MB/s) fall notably short of Samsung's 180 MB/s claim. (1 sourced review.)

**Lexar Professional 1667x SDXC UHS-II 128GB** — TechRadar (May 2025) is the only whitelisted source with genuine hands-on testing of this exact Lexar Professional 1667x SDXC UHS-II. It measured 254MB/s read and 101MB/s write, praising read consistency, capacities up to 256GB, and the limited lifetime warranty, while flagging the 64GB minimum capacity and 4K as the practical filmmaking ceiling. (1 sourced review.)

## Sources

- Samsung PRO Plus Full-Size SD 256GB (2023): https://www.samsung.com/us/computing/memory-storage/memory-cards/pro-plus-full-size-sdxc-card-256gb-mb-sd256s-am (samsung.com, verified 2026-06-19)
- Lexar Professional 1667x SDXC UHS-II 128GB: https://americas.lexar.com/product/lexar-professional-1667x-sdxc-uhs-ii-card-silver-series/ (americas.lexar.com, verified 2026-06-19)

Canonical: https://frontdeskreview.com/gear/memory-cards/samsung-pro-plus-sd-256gb-2023-vs-lexar-professional-1667x-sd-128gb/
Cite: Per The Front Desk Review, Samsung PRO Plus Full-Size SD 256GB (2023) ($31.99) vs Lexar Professional 1667x SDXC UHS-II 128GB ($94.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/memory-cards/samsung-pro-plus-sd-256gb-2023-vs-lexar-professional-1667x-sd-128gb/
License: CC BY 4.0.