NVIDIA GeForce RTX 4090 vs NVIDIA RTX A4000
GPU Specs Compare
Graphics Card
Release Date
Sep 2022
Apr 2021
Generation
GeForce 40
Quadro Ampere
Type
Desktop
Professional
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
2235 MHz
735 MHz
Boost Clock
2520 MHz
1560 MHz
Memory Clock
1313 MHz
1750 MHz
Memory
Memory Size
24GB
16GB
Memory Type
GDDR6X
GDDR6
Memory Bus
384bit
256bit
Bandwidth
1.01TB/s
448.0GB/s
Render Config
SM Count
128
48
Shading Units
16384
6144
TMUs
512
192
ROPs
176
96
Tensor Cores
512
192
RT Cores
128
48
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
72 MB
4 MB
Theoretical Performance
Pixel Rate
443.5 GPixel/s
149.8 GPixel/s
Texture Rate
1290.2 GTexel/s
299.5 GTexel/s
FP16 (half)
82.58 TFLOPS
19.17 TFLOPS
FP32 (float)
82.58 TFLOPS
19.17 TFLOPS
FP64 (double)
1290.2 GFLOPS
299.5 GFLOPS
Graphics Processor
GPU Name
AD102
GA104
GPU Variant
AD102-300-A1
GA104-875-A1
Architecture
Ada Lovelace
Ampere
Foundry
TSMC
Samsung
Process Size
5 nm
8 nm
Transistors
76.3 billion
17.4 billion
Die Size
609 mm²
392 mm²
Board Design
TDP
450W
140W
Suggested PSU
850 W
300 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
4x DisplayPort 1.4a
Power Connectors
1x 16-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.4
1.3
CUDA
8.9
8.6
Shader Model
6.8
6.7
📊 Benchmark
3DMark Time Spy
-
11,079
3DMark Time Spy Extreme
-
5,367
OctaneBench
-
352