diff --git a/generators/chipyard/src/main/scala/config/RadianceConfigs.scala b/generators/chipyard/src/main/scala/config/RadianceConfigs.scala
index 12c5c9af..58573fc6 100644
--- a/generators/chipyard/src/main/scala/config/RadianceConfigs.scala
+++ b/generators/chipyard/src/main/scala/config/RadianceConfigs.scala
@@ -52,7 +52,7 @@ class RadianceBaseConfig extends Config(
   new AbstractConfig)
 
 class RadianceFP16ClusterConfig extends Config(
-  new radiance.subsystem.WithRadianceGemmini(location = InCluster(0), dim = 16, accSizeInKB = 64, tileSize = (8, 4, 8), dataType = RadianceGemminiDataType.FP16) ++
+  new radiance.subsystem.WithRadianceGemmini(location = InCluster(0), dim = 16, accSizeInKB = 32, tileSize = (8, 4, 8), dataType = RadianceGemminiDataType.FP16) ++
   new radiance.subsystem.WithRadianceCores(8, location = InCluster(0), tensorCoreFP16 = true, tensorCoreDecoupled = false, useVxCache = false) ++
   new radiance.subsystem.WithRadianceSharedMem(address = x"ff000000", size = 128 << 10, numBanks = 4, numWords = 16) ++
   new radiance.subsystem.WithCoalescer(nNewSrcIds = 16) ++
@@ -61,7 +61,7 @@ class RadianceFP16ClusterConfig extends Config(
   new RadianceBaseConfig)
 
 class Radiance4CFP16ClusterConfig extends Config(
-  new radiance.subsystem.WithRadianceGemmini(location = InCluster(0), dim = 16, accSizeInKB = 64, tileSize = (8, 4, 8), dataType = RadianceGemminiDataType.FP16) ++
+  new radiance.subsystem.WithRadianceGemmini(location = InCluster(0), dim = 16, accSizeInKB = 32, tileSize = (8, 4, 8), dataType = RadianceGemminiDataType.FP16) ++
   new radiance.subsystem.WithRadianceCores(4, location = InCluster(0), tensorCoreFP16 = true, tensorCoreDecoupled = true, useVxCache = false) ++
   new radiance.subsystem.WithRadianceSharedMem(address = x"ff000000", size = 128 << 10, numBanks = 4, numWords = 16,
                                                memType = radiance.subsystem.TwoReadOneWrite,