diff --git a/src/cpu/amd/model_10xxx/ram_calc.c b/src/cpu/amd/model_10xxx/ram_calc.c
index 98b80e96b9..c37c0ce41d 100644
--- a/src/cpu/amd/model_10xxx/ram_calc.c
+++ b/src/cpu/amd/model_10xxx/ram_calc.c
@@ -29,13 +29,13 @@ uint64_t get_uma_memory_size(uint64_t topmem)
 	uint64_t uma_size = 0;
 	if (IS_ENABLED(CONFIG_GFXUMA)) {
 		/* refer to UMA Size Consideration in 780 BDG. */
-		if (topmem > 0x40000000)	/* 1GB and above system memory */
+		if (topmem >= 0x40000000)	/* 1GB and above system memory */
 			uma_size = 0x10000000;	/* 256M recommended UMA */
 
-		else if (topmem > 0x20000000)	/* 512M - 1023M system memory */
+		else if (topmem >= 0x20000000)	/* 512M - 1023M system memory */
 			uma_size = 0x8000000;	/* 128M recommended UMA */
 
-		else if (topmem > 0x10000000)	/* 256M - 511M system memory */
+		else if (topmem >= 0x10000000)	/* 256M - 511M system memory */
 			uma_size = 0x4000000;	/* 64M recommended UMA */
 	}