NVIDIA RTX A400 vs NVIDIA GeForce GT 620
We compared two Desktop platform GPUs: 4GB VRAM RTX A400 and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA RTX A400 's Advantages
Released 11 years and 11 months late
Boost Clock1762MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (96.00GB/s vs 14.40GB/s)
672 additional rendering cores
NVIDIA GeForce GT 620 's Advantages
Lower TDP (49W vs 50W)
Score
Benchmark
FP32 (float)
RTX A400
+905%
2.706 TFLOPS
GeForce GT 620
0.269 TFLOPS
3DMark Time Spy
RTX A400
+2148%
2091
GeForce GT 620
93
Graphics Card
Apr 2024
Release Date
May 2012
Quadro Ampere(Ax000)
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
1417 MHz
Base Clock
-
1762 MHz
Boost Clock
-
1500 MHz
Memory Clock
900 MHz
Memory
4GB
Memory Size
1024MB
GDDR6
Memory Type
DDR3
64bit
Memory Bus
64bit
96.00GB/s
Bandwidth
14.40GB/s
Render Config
-
-
-
6
SM Count
2
768
Shading Units
96
24
TMUs
16
16
ROPs
4
24
Tensor Cores
-
6
RT Cores
-
128 KB (per SM)
L1 Cache
64 KB (per SM)
2 MB
L2 Cache
128 KB
-
-
-
Theoretical Performance
28.19 GPixel/s
Pixel Rate
2.800 GPixel/s
42.29 GTexel/s
Texture Rate
11.20 GTexel/s
2.706 TFLOPS
FP16 (half)
-
2.706 TFLOPS
FP32 (float)
268.8 GFLOPS
42.29 GFLOPS
FP64 (double)
22.40 GFLOPS
Board Design
50W
TDP
49W
250 W
Suggested PSU
200 W
4x mini-DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
None
Power Connectors
None
Graphics Processor
GA107
GPU Name
GF108
-
GPU Variant
GF108-100-KB-A1
Ampere
Architecture
Fermi
Samsung
Foundry
TSMC
8 nm
Process Size
40 nm
8.7 billion
Transistors
0.585 billion
200 mm²
Die Size
116 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.3
Vulkan
N/A
8.6
CUDA
2.1
6.8
Shader Model
5.1
