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GPU Comparison
NVIDIA GeForce GTX 780M vs NVIDIA GeForce GT 420M
NVIDIA GeForce GTX 780M vs NVIDIA GeForce GT 420M
VS
NVIDIA GeForce GTX 780M
NVIDIA GeForce GT 420M
We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 780M 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 GTX 780M 's Advantages
Released 2 years and 8 months late
Boost Clock797MHz
Larger VRAM bandwidth (160.0GB/s vs 25.60GB/s)
1440 additional rendering cores
NVIDIA GeForce GT 420M 's Advantages
Lower TDP (23W vs 122W)
Score
Benchmark
FP32 (float)
GeForce GTX 780M
+1175%
2.448 TFLOPS
GeForce GT 420M
0.192 TFLOPS
GeForce GTX 780M
VS
GeForce GT 420M
Graphics Card
May 2013
Release Date
Sep 2010
GeForce 700M
Generation
GeForce 400M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
771 MHz
Base Clock
-
797 MHz
Boost Clock
-
1250 MHz
Memory Clock
800 MHz
Memory
4GB
Memory Size
512MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
160.0GB/s
Bandwidth
25.60GB/s
Render Config
-
SM Count
2
-
Compute Units
-
1536
Shading Units
96
128
TMUs
16
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
256 KB
Theoretical Performance
25.50 GPixel/s
Pixel Rate
2.000 GPixel/s
102.0 GTexel/s
Texture Rate
8.000 GTexel/s
-
FP16 (half)
-
2.448 TFLOPS
FP32 (float)
192.0 GFLOPS
102.0 GFLOPS
FP64 (double)
16.00 GFLOPS
Graphics Processor
GK104
GPU Name
GF108
N14E-GTX-A2
GPU Variant
N11P-GE-A1
Kepler
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
3.54 billion
Transistors
0.585 billion
294 mm²
Die Size
116 mm²
Board Design
122W
TDP
23W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
2.1
5.1
Shader Model
5.1
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