NVIDIA GeForce GT 420M vs NVIDIA GeForce GT 620M
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 1024MB VRAM GeForce GT 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 620M 's Advantages
Released 1 years and 11 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (28.80GB/s vs 25.60GB/s)
Lower TDP (15W vs 23W)
Score
Benchmark
FP32 (float)
GeForce GT 420M
0.192 TFLOPS
GeForce GT 620M
+31%
0.253 TFLOPS
Graphics Card
Sep 2010
Release Date
Aug 2012
GeForce 400M
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
800 MHz
Memory Clock
900 MHz
Memory
512MB
Memory Size
1024MB
DDR3
Memory Type
DDR3
128bit
Memory Bus
128bit
25.60GB/s
Bandwidth
28.80GB/s
Render Config
-
-
-
2
SM Count
2
96
Shading Units
96
16
TMUs
16
4
ROPs
4
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
2.000 GPixel/s
Pixel Rate
2.640 GPixel/s
8.000 GTexel/s
Texture Rate
10.56 GTexel/s
-
-
-
192.0 GFLOPS
FP32 (float)
253.4 GFLOPS
16.00 GFLOPS
FP64 (double)
21.12 GFLOPS
Board Design
23W
TDP
15W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GF108
GPU Name
GF108
N11P-GE-A1
GPU Variant
N13P-GLP-A1
Fermi
Architecture
Fermi
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.585 billion
Transistors
0.585 billion
116 mm²
Die Size
116 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
2.1
5.1
Shader Model
5.1
