diff --git a/src/graph/rome_models.cc b/src/graph/rome_models.cc
index 275509a015..a2fa9f9653 100644
--- a/src/graph/rome_models.cc
+++ b/src/graph/rome_models.cc
@@ -1953,7 +1953,9 @@ ncclResult_t parseA2a8P(struct ncclTopoSystem* system, struct ncclTopoGraph* gra
   INFO(NCCL_GRAPH, "%s", line);
   system->type |= RCCL_TOPO_4P2H_ROME;
   parseOptions(system, romeTopoModels[i].options);
-
+  if(IsArchMatch(system->nodes[GPU].nodes[0].gpu.gcn, "gfx950")){
+    system->tuning = 6;
+  }
   // create 4P2H based on reference and remapped ids
   switch (graph->pattern) {
   case NCCL_TOPO_PATTERN_RING:
@@ -2152,7 +2154,9 @@ ncclResult_t parseRome4P2H(struct ncclTopoSystem* system, struct ncclTopoGraph*
   }
   INFO(NCCL_GRAPH, "%s", line);
   parseOptions(system, romeTopoModels[i].options);
-
+  if(IsArchMatch(system->nodes[GPU].nodes[0].gpu.gcn, "gfx950")){
+    system->tuning = 6;
+  }
   // create 4P2H based on reference and remapped ids
   switch (graph->pattern) {
   case NCCL_TOPO_PATTERN_RING:
@@ -2339,7 +2343,9 @@ ncclResult_t parse1H16P(struct ncclTopoSystem* system, struct ncclTopoGraph* gra
   INFO(NCCL_GRAPH, "%s", line);
   system->type |= RCCL_TOPO_16P1H;
   parseOptions(system, romeTopoModels[i].options);
-
+  if(IsArchMatch(system->nodes[GPU].nodes[0].gpu.gcn, "gfx950")){
+    system->tuning = 6;
+  }
 
   // create 16P1H based on reference and remapped ids
   NCCLCHECK(parseGraph(romeTopoModels[i].ringBase, system, graph, rdm, nnets > 1 ? n : NULL, false));
diff --git a/src/graph/tuning.cc b/src/graph/tuning.cc
index 468a376442..bf151a1374 100644
--- a/src/graph/tuning.cc
+++ b/src/graph/tuning.cc
@@ -1,3 +1,4 @@
+
 /*************************************************************************
  * Copyright (c) 2016-2022, NVIDIA CORPORATION. All rights reserved.
  * Modifications Copyright (c) 2019-2022 Advanced Micro Devices, Inc. All rights reserved.
@@ -337,6 +338,45 @@ static struct tuningModel tuning_model_5 {
   },
 };
 
+static struct tuningModel tuning_model_6 {
+  .hwLat = {
+    /* NVLINK */
+    { /* Tree (LL/LL128/Simple)*/ { 0.9, 0.9, 2.3 }, /* Ring (LL/LL128/Simple)*/ { 0.8, 0.8, 2.1 }, /* CollNetDirect (Simple)*/ { 0.0, 0.0, 0.9 }, /* CollNetChain (Simple)*/ { 0.0, 0.0, 0.0 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+    /* PCI */
+    { /* Tree (LL/LL128/Simple)*/ { 2.2, 2.2, 5.7 }, /* Ring (LL/LL128/Simple)*/ { 2.2, 2.2, 5.7 }, /* CollNetDirect (Simple)*/ { 0.0, 0.0, 5.7 }, /* CollNetChain (Simple)*/ { 0.0, 0.0, 5.7 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+    /* NET */
+    { /* Tree (LL/LL128/Simple)*/ { 10.5, 10.5, 25.0 }, /* Ring (LL/LL128/Simple)*/ { 9.5, 9.5, 320.0 }, /* CollNetDirect (Simple)*/ { 0.0, 0.0, 10.5 }, /* CollNetChain (Simple)*/ { 0.0, 0.0, 0.0 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+  },
+
+  .bwRatio = {
+    /* 2 nodes */
+    { /* Tree (LL/LL128/Simple)*/ { 0.06, 0.06, 0.11 }, /* Ring (LL/LL128/Simple)*/ { 0.08, 0.08, 1.00 }, /* CollNetDirect (Simple)*/ { 0.00, 0.00, 1.00 }, /* CollNetChain (Simple)*/ { 0.00, 0.00, 1.00 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+    /* more than 2 nodes */
+    { /* Tree (LL/LL128/Simple)*/ { 0.06, 0.06, 0.59 }, /* Ring (LL/LL128/Simple)*/ { 0.08, 0.08, 1.00 }, /* CollNetDirect (Simple)*/ { 0.00, 0.00, 1.00 }, /* CollNetChain (Simple)*/ { 0.00, 0.00, 1.00 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+  },
+
+  .treeCorrectionFactor = {
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 1.0, 1.0, 1.0, 1.0, 0.6, 1.0, 0.9, 1.0, 1.0, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, },
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 1.0, 1.0, 1.0, 1.0, 0.6, 1.0, 0.9, 1.0, 1.0, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, },
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.7, 1.0, 1.0, 1.0, 1.0, 1.0, 0.7, 0.7, 0.5, 0.6, 0.6, 0.6, },
+  },
+
+  .ringCorrectionFactor = {
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 0.2, 1.0, 0.4, 0.4, 0.1, 0.2, 0.2, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, },
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 0.2, 1.0, 0.4, 0.4, 0.1, 0.2, 0.2, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, },
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 0.8, 1.0, 1.0, 1.0, },
+  },
+  // Follow order in RcclTunableColls
+  .llProtoRanges = {
+    /*ReduceScatter*/
+    {/*LL (min/max/factor/thread_threshold)*/ {0, 65536, 1, 16}, /*LL64/128 (min/max/factor/thread_threshold)*/ {65536, 4194304, 1, 64}},
+    /*AllGather*/
+    {/*LL (min/max/factor/thread_threshold)*/ {0, 65536,  1, 16}, /*LL64/128 (min/max/factor/thread_threshold)*/ {65536, 8388608, 1, 64}},
+    /*AllReduce*/
+    {/*LL (min/max/factor/thread_threshold)*/ {0, 262144, 1, 0},/*LL64/128 (min/max/factor/thread_threshold)*/ {262144, 30408704, 3145728, 0}},
+  },
+};
+
 static struct tuningModel rcclTuningModel[] = {
   tuning_model_0,
   tuning_model_1,
@@ -344,6 +384,8 @@ static struct tuningModel rcclTuningModel[] = {
   tuning_model_3,
   tuning_model_4,
   tuning_model_5,
+  tuning_model_6,
+
 };
 
 /* Array indexes used below */