Radeon RX 6400 vs B100
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 96GB VRAM B100 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6400 's Advantages
Boost Clock has increased by 26% (2321MHz vs 1837MHz)
Lower TDP (53W vs 1000W)
B100 's Advantages
Released 2 years and 10 months late
More VRAM (96GB vs 4GB)
Larger VRAM bandwidth (4.10TB/s vs 128.0GB/s)
16128 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6400
3565
B100
+1641%
62080
Graphics Card
Jan 2022
Release Date
Nov 2024
Navi II
Generation
Server Blackwell
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 5.0 x16
Clock Speeds
1923 MHz
Base Clock
1665 MHz
2321 MHz
Boost Clock
1837 MHz
2000 MHz
Memory Clock
2000 MHz
Memory
4GB
Memory Size
96GB
GDDR6
Memory Type
HBM3e
64bit
Memory Bus
4096bit
128.0GB/s
Bandwidth
4.10TB/s
Render Config
12
Compute Units
-
-
SM Count
132
768
Shading Units
16896
48
TMUs
528
32
ROPs
24
-
Tensor Cores
528
12
RT Cores
-
128 KB per Array
L1 Cache
256 KB (per SM)
1024 KB
L2 Cache
50 MB
16 MB
L3 Cache
-
Theoretical Performance
74.27 GPixel/s
Pixel Rate
44.09 GPixel/s
111.4 GTexel/s
Texture Rate
969.9 GTexel/s
7.130 TFLOPS
FP16 (half)
248.3 TFLOPS
3.565 TFLOPS
FP32 (float)
62.08 TFLOPS
222.8 GFLOPS
FP64 (double)
31.04 TFLOPS
Board Design
53W
TDP
1000W
250 W
Suggested PSU
1400 W
1x HDMI 2.1
1x DisplayPort 1.4a
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
Navi 24
GPU Name
GB102
Navi 24 XL
(215-135000046)
GPU Variant
-
RDNA 2.0
Architecture
Blackwell
TSMC
Foundry
TSMC
6 nm
Process Size
5 nm
5.4 billion
Transistors
104 billion
107 mm²
Die Size
Unknown
Graphics Features
12 Ultimate (12_2)
DirectX
N/A
4.6
OpenGL
N/A
2.2
OpenCL
3.0
1.3
Vulkan
N/A
-
CUDA
10.1
6.7
Shader Model
N/A
