NVIDIA B100 vs NVIDIA RTX A400
We compared two Desktop platform GPUs: 96GB VRAM B100 and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA B100 's Advantages
Released 7 months late
Boost Clock has increased by 4% (1837MHz vs 1762MHz)
More VRAM (96GB vs 4GB)
Larger VRAM bandwidth (4.10TB/s vs 96.00GB/s)
16128 additional rendering cores
NVIDIA RTX A400 's Advantages
Lower TDP (50W vs 1000W)
Score
Benchmark
FP32 (float)
B100
+2194%
62.08 TFLOPS
RTX A400
2.706 TFLOPS
Graphics Card
Nov 2024
Release Date
Apr 2024
Server Blackwell
Generation
Quadro Ampere(Ax000)
Desktop
Type
Desktop
PCIe 5.0 x16
Bus Interface
PCIe 4.0 x8
Clock Speeds
1665 MHz
Base Clock
1417 MHz
1837 MHz
Boost Clock
1762 MHz
2000 MHz
Memory Clock
1500 MHz
Memory
96GB
Memory Size
4GB
HBM3e
Memory Type
GDDR6
4096bit
Memory Bus
64bit
4.10TB/s
Bandwidth
96.00GB/s
Render Config
-
-
-
132
SM Count
6
16896
Shading Units
768
528
TMUs
24
24
ROPs
16
528
Tensor Cores
24
-
RT Cores
6
256 KB (per SM)
L1 Cache
128 KB (per SM)
50 MB
L2 Cache
2 MB
-
-
-
Theoretical Performance
44.09 GPixel/s
Pixel Rate
28.19 GPixel/s
969.9 GTexel/s
Texture Rate
42.29 GTexel/s
248.3 TFLOPS
FP16 (half)
2.706 TFLOPS
62.08 TFLOPS
FP32 (float)
2.706 TFLOPS
31.04 TFLOPS
FP64 (double)
42.29 GFLOPS
Board Design
1000W
TDP
50W
1400 W
Suggested PSU
250 W
No outputs
Outputs
4x mini-DisplayPort 1.4a
-
Power Connectors
None
Graphics Processor
GB102
GPU Name
GA107
-
-
-
Blackwell
Architecture
Ampere
TSMC
Foundry
Samsung
5 nm
Process Size
8 nm
104 billion
Transistors
8.7 billion
Unknown
Die Size
200 mm²
Graphics Features
N/A
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
3.0
OpenCL
3.0
N/A
Vulkan
1.3
10.1
CUDA
8.6
N/A
Shader Model
6.8
