GPU Comparison
GEFORCE
NVIDIA B200
CORE STATE
GB100
VRAM
90 GB
CLOCK SPEED
1965 MHz
TDP
1000 W
BUS WIDTH
4096 bit
ARCHITECTURE
Blackwell
PROCESS
5 nm
LAUNCH DATE
—
VS
GEFORCE
RTX A400
CORE STATE
GA107
VRAM
4 GB
CLOCK SPEED
1762 MHz
TDP
50 W
BUS WIDTH
64 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2024
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
B200
RTX A400
Core Specs
Shading Units
18,944
768
-95.9%
Shaders
18,944
768
-95.9%
TMUs
592
24
-95.9%
ROPs
24
16
-33.3%
SM Count
148
6
-95.9%
Clocks
Base Clock
700 MHz
1417 MHz
Boost Clock
1965 MHz
1762 MHz
Memory Clock
2000 MHz
8 Gbps effective
1500 MHz
12 Gbps effective
Memory
Memory Size
90 GB
4 GB
VRAM (MB)
92,160
4,096
-95.6%
Memory Type
HBM3e
GDDR6
Memory Bus
4096 bit
64 bit
Bandwidth
4.10 TB/s
96.00 GB/s
Cache
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
50 MB
2 MB
Performance
Pixel Rate
47.16 GPixel/s
28.19 GPixel/s
Texture Rate
1,163.3 GTexel/s
42.29 GTexel/s
FP32 (TFLOPS)
74.45 TFLOPS
2.706 TFLOPS
FP64 (TFLOPS)
37.22 TFLOPS (1:2)
42.29 GFLOPS (1:64)
FP16 (TFLOPS)
1,191.2 TFLOPS (16:1)
2.706 TFLOPS (1:1)
AI/RT
RT Cores
—
6
Tensor Cores
592
24
-95.9%
Power
TDP
1000 W
50 W
TDP (W)
1,000
50
-95.0%
Suggested PSU
1400 W
250 W
Power Connectors
—
None
Architecture
Architecture
Blackwell
Ampere
GPU Name
GB100
GA107
Generation
Server Blackwell
(Bxx)
Workstation Ampere
(Ax000)
Process Size
5 nm
8 nm
Transistors
104,000 million
8,700 million
Die Size
—
200 mm²
Foundry
TSMC
Samsung
Density
—
43.5M / mm²
API Support
DirectX
—
12 Ultimate (12_2)
OpenGL
—
4.6
Vulkan
—
1.4
OpenCL
3.0
3.0
CUDA
10.0
8.6
Shader Model
—
6.8
Physical
Slot Width
SXM Module
Single-slot
Length
—
163 mm
6.4 inches
Height
—
69 mm
2.7 inches
Outputs
No outputs
4x mini-DisplayPort 1.4a
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x8
Other
Production
Active
Active
Predecessor
Server Hopper
Quadro Turing
Successor
Server Rubin
Workstation Ada