GPU Comparison
RADEON
AMD Instinct MI300X
CORE STATE
Aqua Vanjaram
VRAM
192 GB
CLOCK SPEED
2100 MHz
TDP
750 W
BUS WIDTH
8192 bit
ARCHITECTURE
CDNA 3.0
PROCESS
5 nm
LAUNCH DATE
2023
VS
GEFORCE
GB10
CORE STATE
GB20B
VRAM
128 GB
CLOCK SPEED
2418 MHz
TDP
140 W
BUS WIDTH
256 bit
ARCHITECTURE
Blackwell 2.0
PROCESS
5 nm
LAUNCH DATE
2025
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Instinct MI300X
GB10
Core Specs
Shading Units
19,456
6,144
-68.4%
Shaders
19,456
6,144
-68.4%
TMUs
1,216
384
-68.4%
ROPs
0
48
+∞%
Compute Units
304
—
SM Count
—
48
Clocks
Base Clock
1000 MHz
1665 MHz
Boost Clock
2100 MHz
2418 MHz
Memory Clock
1300 MHz 5.2 Gbps effective
1067 MHz 8.5 Gbps effective
Memory
Memory Size
192 GB
128 GB
VRAM (MB)
196,608
131,072
-33.3%
Memory Type
HBM3
LPDDR5X
Memory Bus
8192 bit
256 bit
Bandwidth
5.32 TB/s
273.2 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
16 MB
50 MB
L3 Cache
256 MB
—
Performance
Pixel Rate
0 MPixel/s
116.1 GPixel/s
Texture Rate
2,553.6 GTexel/s
928.5 GTexel/s
FP32 (TFLOPS)
81.72 TFLOPS
29.71 TFLOPS
FP64 (TFLOPS)
40.86 TFLOPS (1:2)
464.3 GFLOPS (1:64)
FP16 (TFLOPS)
81.72 TFLOPS (1:1)
29.71 TFLOPS (1:1)
AI/RT
RT Cores
—
48
Tensor Cores
—
384
Matrix Cores
1,216
—
Power
TDP
750 W
140 W
TDP (W)
750
140
-81.3%
Suggested PSU
1150 W
300 W
Power Connectors
None
None
Architecture
Architecture
CDNA 3.0
Blackwell 2.0
GPU Name
Aqua Vanjaram
GB20B
Generation
Instinct (MIx)
Server Blackwell (Bxx)
Process Size
5 nm
5 nm
Transistors
153,000 million
unknown
Die Size
1017 mm²
382 mm²
Foundry
TSMC
TSMC
Density
150.4M / mm²
—
AMD MCM
MCM
2
—
API Support
OpenCL
3.0
3.0
CUDA
—
12.1
Physical
Slot Width
OAM Module
IGP
Length
—
150 mm 5.9 inches
Height
—
51 mm 2 inches
Outputs
No outputs
1x HDMI
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Other
Launch Price
—
3,999 USD
Production
—
Active
Predecessor
Radeon Instinct
Server Hopper
Successor
—
Server Rubin