NVIDIA RTX A4000 vs NVIDIA GB10
GPU · Specs Compare
Graphics Card
Release Date
Apr 2021
Oct 2025
Generation
Quadro Ampere
Server Blackwell
Type
Professional
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
735 MHz
1665 MHz
Boost Clock
1560 MHz
2418 MHz
Memory Clock
1750 MHz
1067 MHz
Memory
Memory Size
16GB
128GB
Memory Type
GDDR6
LPDDR5X
Memory Bus
256bit
256bit
Bandwidth
448.0GB/s
273.2GB/s
Render Config
SM Count
48
48
Shading Units
6144
6144
TMUs
192
384
ROPs
96
48
Tensor Cores
192
384
RT Cores
48
48
L1 Cache
128 KB (per SM)
256 KB (per SM)
L2 Cache
4 MB
50 MB
Theoretical Performance
Pixel Rate
149.8 GPixel/s
116.1 GPixel/s
Texture Rate
299.5 GTexel/s
928.5 GTexel/s
FP16 (half)
19.17 TFLOPS
29.71 TFLOPS
FP32 (float)
19.17 TFLOPS
29.71 TFLOPS
FP64 (double)
299.5 GFLOPS
464.3 GFLOPS
Graphics Processor
GPU Name
GA104
GB20B
GPU Variant
GA104-875-A1
—
Architecture
Ampere
Blackwell 2.0
Foundry
Samsung
TSMC
Process Size
8 nm
3 nm
Transistors
17.4 billion
Unknown
Die Size
392 mm²
Unknown
Board Design
TDP
140W
140W
Suggested PSU
300 W
300 W
Outputs
4x DisplayPort 1.4a
1x HDMI
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
8.6
12.1
Shader Model
6.7
N/A
Benchmark
3DMark Time Spy
11,079
—
3DMark Time Spy Extreme
5,367
—
OctaneBench
352
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.