Accelerator and GPU hardware specifications

Applies to Linux and Windows

2024-09-12

9 min read time

The following tables provide an overview of the hardware specifications for AMD Instinct™ accelerators, and AMD Radeon™ PRO and Radeon™ GPUs.

AMD Instinct accelerators

Model	Architecture	LLVM target name	VRAM (GiB)	Compute Units	Wavefront Size	LDS (KiB)	L3 Cache (MiB)	L2 Cache (MiB)	L1 Vector Cache (KiB)	L1 Scalar Cache (KiB)	L1 Instruction Cache (KiB)	VGPR File (KiB)	SGPR File (KiB)
MI300X	CDNA3	gfx941 or gfx942	192	304	64	64	256	32	32	16 per 2 CUs	64 per 2 CUs	512	12.5
MI300A	CDNA3	gfx940 or gfx942	128	228	64	64	256	24	32	16 per 2 CUs	64 per 2 CUs	512	12.5
MI250X	CDNA2	gfx90a	128	220 (110 per GCD)	64	64		16 (8 per GCD)	16	16 per 2 CUs	32 per 2 CUs	512	12.5
MI250	CDNA2	gfx90a	128	208	64	64		16 (8 per GCD)	16	16 per 2 CUs	32 per 2 CUs	512	12.5
MI210	CDNA2	gfx90a	64	104	64	64		8	16	16 per 2 CUs	32 per 2 CUs	512	12.5
MI100	CDNA	gfx908	32	120	64	64		8	16	16 per 3 CUs	32 per 3 CUs	256 VGPR and 256 AccVGPR	12.5
MI60	GCN5.1	gfx906	32	64	64	64		4	16	16 per 3 CUs	32 per 3 CUs	256	12.5
MI50 (32GB)	GCN5.1	gfx906	32	60	64	64		4	16	16 per 3 CUs	32 per 3 CUs	256	12.5
MI50 (16GB)	GCN5.1	gfx906	16	60	64	64		4	16	16 per 3 CUs	32 per 3 CUs	256	12.5
MI25	GCN5.0	gfx900	16	64	64	64		4	16	16 per 3 CUs	32 per 3 CUs	256	12.5
MI8	GCN3.0	gfx803	4	64	64	64		2	16	16 per 4 CUs	32 per 4 CUs	256	12.5
MI6	GCN4.0	gfx803	16	36	64	64		2	16	16 per 4 CUs	32 per 4 CUs	256	12.5

AMD Radeon PRO GPUs

Model	Architecture	LLVM target name	VRAM (GiB)	Compute Units	Wavefront Size	LDS (KiB)	Infinity Cache (MiB)	L2 Cache (MiB)	Graphics L1 Cache (KiB)	L0 Vector Cache (KiB)	L0 Scalar Cache (KiB)	L0 Instruction Cache (KiB)	VGPR File (KiB)	SGPR File (KiB)
Radeon PRO W7900 Dual Slot	RDNA3	gfx1100	48	96	32	128	96	6	256	32	16	32	384	20
Radeon PRO W7900	RDNA3	gfx1100	48	96	32	128	96	6	256	32	16	32	384	20
Radeon PRO W7800	RDNA3	gfx1100	32	70	32	128	64	6	256	32	16	32	384	20
Radeon PRO W7700	RDNA3	gfx1101	16	48	32	128	64	4	256	32	16	32	384	20
Radeon PRO W6800	RDNA2	gfx1030	32	60	32	128	128	4	128	16	16	32	256	20
Radeon PRO W6600	RDNA2	gfx1032	8	28	32	128	32	2	128	16	16	32	256	20
Radeon PRO V620	RDNA2	gfx1030	32	72	32	128	128	4	128	16	16	32	256	20
Radeon Pro W5500	RDNA	gfx1012	8	22	32	128		4	128	16	16	32	256	20
Radeon Pro VII	GCN5.1	gfx906	16	60	64	64		4		16	16 per 3 CUs	32 per 3 CUs	256	12.5

AMD Radeon GPUs

Model	Architecture	LLVM target name	VRAM (GiB)	Compute Units	Wavefront Size	LDS (KiB)	Infinity Cache (MiB)	L2 Cache (MiB)	Graphics L1 Cache (KiB)	L0 Vector Cache (KiB)	L0 Scalar Cache (KiB)	L0 Instruction Cache (KiB)	VGPR File (KiB)	SGPR File (KiB)
Radeon RX 7900 XTX	RDNA3	gfx1100	24	96	32	128	96	6	256	32	16	32	384	20
Radeon RX 7900 XT	RDNA3	gfx1100	20	84	32	128	80	6	256	32	16	32	384	20
Radeon RX 7900 GRE	RDNA3	gfx1100	16	80	32	128	64	6	256	32	16	32	384	20
Radeon RX 7800 XT	RDNA3	gfx1101	16	60	32	128	64	4	256	32	16	32	384	20
Radeon RX 7700 XT	RDNA3	gfx1101	12	54	32	128	48	4	256	32	16	32	384	20
Radeon RX 7600	RDNA3	gfx1102	8	32	32	128	32	2	256	32	16	32	256	20
Radeon RX 6950 XT	RDNA2	gfx1030	16	80	32	128	128	4	128	16	16	32	256	20
Radeon RX 6900 XT	RDNA2	gfx1030	16	80	32	128	128	4	128	16	16	32	256	20
Radeon RX 6800 XT	RDNA2	gfx1030	16	72	32	128	128	4	128	16	16	32	256	20
Radeon RX 6800	RDNA2	gfx1030	16	60	32	128	128	4	128	16	16	32	256	20
Radeon RX 6750 XT	RDNA2	gfx1031	12	40	32	128	96	3	128	16	16	32	256	20
Radeon RX 6700 XT	RDNA2	gfx1031	12	40	32	128	96	3	128	16	16	32	256	20
Radeon RX 6700	RDNA2	gfx1031	10	36	32	128	80	3	128	16	16	32	256	20
Radeon RX 6650 XT	RDNA2	gfx1032	8	32	32	128	32	2	128	16	16	32	256	20
Radeon RX 6600 XT	RDNA2	gfx1032	8	32	32	128	32	2	128	16	16	32	256	20
Radeon RX 6600	RDNA2	gfx1032	8	28	32	128	32	2	128	16	16	32	256	20
Radeon VII	GCN5.1	gfx906	16	60	64	64 per CU		4		16	16 per 3 CUs	32 per 3 CUs	256	12.5

Glossary

For more information about the terms used, see the specific documents and guides, or Understanding the HIP programming model.

LLVM target name

Argument to pass to clang in –offload-arch to compile code for the given architecture.

VRAM

Amount of memory available on the GPU.

Compute Units

Number of compute units on the GPU.

Wavefront Size

Amount of work items that execute in parallel on a single compute unit. This is equivalent to the warp size in HIP.

LDS

The Local Data Share (LDS) is a low-latency, high-bandwidth scratch pad memory. It is local to the compute units, and can be shared by all work items in a work group. In HIP, the LDS can be used for shared memory, which is shared by all threads in a block.

L3 Cache (CDNA/GCN only)

Size of the level 3 cache. Shared by all compute units on the same GPU. Caches data and instructions. Similar to the Infinity Cache on RDNA architectures.

Infinity Cache (RDNA only)

Size of the infinity cache. Shared by all compute units on the same GPU. Caches data and instructions. Similar to the L3 Cache on CDNA/GCN architectures.

L2 Cache

Size of the level 3 cache. Shared by all compute units on the same GCD. Caches data and instructions.

Graphics L1 Cache (RDNA only)

An additional cache level that only exists in RDNA architectures. Local to a work group processor.

L1 Vector Cache (CDNA/GCN only)

Size of the level 1 vector data cache. Local to a compute unit. This is the L0 vector cache in RDNA architectures.

L1 Scalar Cache (CDNA/GCN only)

Size of the level 1 scalar data cache. Usually shared by several compute units. This is the L0 scalar cache in RDNA architectures.

L1 Instruction Cache (CDNA/GCN only)

Size of the level 1 instruction cache. Usually shared by several compute units. This is the L0 instruction cache in RDNA architectures.

L0 Vector Cache (RDNA only)

Size of the level 0 vector data cache. Local to a compute unit. This is the L1 vector cache in CDNA/GCN architectures.

L0 Scalar Cache (RDNA only)

Size of the level 0 scalar data cache. Usually shared by several compute units. This is the L1 scalar cache in CDNA/GCN architectures.

L0 Instruction Cache (RDNA only)

Size of the level 0 instruction cache. Usually shared by several compute units. This is the L1 instruction cache in CDNA/GCN architectures.

VGPR File

Size of the Vector General Purpose Register (VGPR) file and. It holds data used in vector instructions. GPUs with matrix cores also have AccVGPRs, which are Accumulation General Purpose Vector Registers, used specifically in matrix instructions.

SGPR File

Size of the Scalar General Purpose Register (SGPR) file. Holds data used in scalar instructions.

GCD

Graphics Compute Die.