# \ud83d\ude80 Hardly Optimised
\n### *The definitive Fabric performance pack for 1.16.5 \u2192 1.21.x*
\n**Tested on i5-4570\/4GB DDR3\/Tiny11 – No theoretical benchmarks!**<\/p>\n
—<\/p>\n
## \u26a0\ufe0f **Critical Warning: Minecraft 1.21.5-1.21.7 Unsupported**
\n**All versions between 1.21.5 and 1.21.7 suffer from severe Intel GPU freezes** (Mojang-confirmed bug).
\n– \u274c **No longer supported** in this modpack
\n– \u274c **No stability fixes** will be backported
\n– \u2705 **Upgrade to 1.21.8 immediately** for crash fixes <\/p>\n
**This is not optional** if you use:
\n– Intel UHD
\n– Any integrated GPU
\n– Low-end systems <\/p>\n
**Continuing to use** 1.21.5-1.21.7 *may corrupt worlds during freezes*.<\/p>\n
—<\/p>\n
## \ud83d\udd2c **Proven Performance**
\n### Hardware Validation
\n– **CPU**: Intel Core i5-4570 (4C\/4T @ 3.2GHz)
\n– **RAM**: 4GB DDR3-1600 (single-channel)
\n– **OS**: Tiny11 23H2 (600MB idle RAM usage)
\n– **Storage**: DRAM-less SATA SSD <\/p>\n
### Real-World FPS
\n| Version | FPS | Settings | RAM Usage |
\n|———-|———|——————|———–|
\n| 1.16.5 | 47-164 | 8 chunks, Fast | 1.4GB |
\n| 1.20.4 | 55-106 | 6 chunks, Fancy | 2.9GB |
\n| 1.21.8 | 76-114 | 6 chunks | 3.2GB | <\/p>\n
—<\/p>\n
## \ud83c\udfaf **Version Guide**
\n### \u2705 **1.16.5 – The Low-End Champion**
\n– **Best for**: 4GB RAM systems
\n– **Key Mods**:
\n – `Sodium-Fabric` (1.16.5 fork)
\n – `Phosphor` (lighting optimizations)
\n – `FastChest` (container lag fix) <\/p>\n
### \u2696\ufe0f **1.20.1 – The Modding king**
\n– **Requires**: 8GB+ RAM for modded play
\n– **Shaders**: Iris works but cuts FPS by 40% on HD 4600 <\/p>\n
### \u2696\ufe0f **1.20.4 – The Balanced Choice**
\n– **Requires**: 8GB+ RAM for modded play
\n– **Shaders**: Iris works but cuts FPS by 40% on HD 4600(tricked shaders reccomended) <\/p>\n
### \ud83d\udea7 **1.21.8 – The Future (With Caveats)**
\n– **Critical Fix**: Intel GPU crash patches
\n– **Work In Progress**: Some mods still updating <\/p>\n
—<\/p>\n
## \u26a0\ufe0f **4GB DDR3 Limitations**
\n– **Max Settings**:
\n – 6 chunk render distance
\n – 0 mipmap levels
\n – No shaders\/texture packs
\n– **Must**:
\n – Close all background apps
\n – Use Tiny11\/AtlasOS <\/p>\n
—<\/p>\n
## \ud83d\udce5 **Download Recommendations**
\n| Hardware | Best Version | Notes |
\n|—————-|——————-|—————————|
\n| 4GB DDR3 | 1.16.5 | Change settings if lag is a problem |
\n| 8GB DDR3 | 1.20.4 | Stable for modpacks |
\n| Intel GPU | 1.21.8 | Required for crash fixes | <\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
a modpack that focuses on optimisation more than features<\/p>\n","protected":false},"featured_media":79879,"template":"","meta":{"_minecraft_slug":"hdp","_minecraft_project_id":"QzM6m5N2","_minecraft_author":"membercatcousin","_minecraft_license":"MIT","_minecraft_downloads":636,"_minecraft_follows":2,"_minecraft_client_side":"optional","_minecraft_server_side":"optional","_minecraft_storage_type":"zip","_minecraft_archive_name":"hdp.zip","_minecraft_size_bytes":2408133190,"_minecraft_version_count":23,"_minecraft_updated_at":"2026-05-16T17:11:54.637569Z","_minecraft_date_created":"2025-03-23T04:55:52.913735Z","_minecraft_date_modified":"2025-10-19T21:19:08.491212Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/hdp","_minecraft_icon_attachment_id":79879,"_minecraft_imported_at":"2026-06-04T14:29:48+00:00","_minecraft_import_hash":"d753ff78618b0f1b79610483fadd407d","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[97,157,105,90],"mod_loader":[99],"minecraft_version":[48,36,94,62,37,40,73,74,38,78,79,80,81,82],"class_list":["post-79878","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-fabric","mod_category-lightweight","mod_category-multiplayer","mod_category-optimization","mod_loader-fabric","minecraft_version-1-16-5","minecraft_version-1-20-1","minecraft_version-1-20-4","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-10","minecraft_version-1-21-2","minecraft_version-1-21-3","minecraft_version-1-21-4","minecraft_version-1-21-5","minecraft_version-1-21-6","minecraft_version-1-21-7","minecraft_version-1-21-8","minecraft_version-1-21-9"],"yoast_head":"\n