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GPU Comparison
NVIDIA GeForce GT 445M vs NVIDIA GeForce GT 420M
NVIDIA GeForce GT 445M vs NVIDIA GeForce GT 420M
VS
NVIDIA GeForce GT 445M
NVIDIA GeForce GT 420M
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 445M and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 445M 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (40.00GB/s vs 25.60GB/s)
48 additional rendering cores
NVIDIA GeForce GT 420M 's Advantages
Lower TDP (23W vs 35W)
Score
Benchmark
FP32 (float)
GeForce GT 445M
+70%
0.328 TFLOPS
GeForce GT 420M
0.192 TFLOPS
GeForce GT 445M
VS
GeForce GT 420M
Graphics Card
Sep 2010
Release Date
Sep 2010
GeForce 400M
Generation
GeForce 400M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
625 MHz
Memory Clock
800 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
128bit
40.00GB/s
Bandwidth
25.60GB/s
Render Config
3
SM Count
2
-
Compute Units
-
144
Shading Units
96
24
TMUs
16
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
64 KB (per SM)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
256 KB
Theoretical Performance
3.420 GPixel/s
Pixel Rate
2.000 GPixel/s
13.68 GTexel/s
Texture Rate
8.000 GTexel/s
-
FP16 (half)
-
328.3 GFLOPS
FP32 (float)
192.0 GFLOPS
27.36 GFLOPS
FP64 (double)
16.00 GFLOPS
Graphics Processor
GF106
GPU Name
GF108
N11E-GE-A1
GPU Variant
N11P-GE-A1
Fermi
Architecture
Fermi
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.17 billion
Transistors
0.585 billion
238 mm²
Die Size
116 mm²
Board Design
35W
TDP
23W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-
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
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3
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4
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5
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6
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7
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8
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9
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10
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