NVIDIA GeForce GT 420M vs NVIDIA GeForce GTX 670MX
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 3GB VRAM GeForce GTX 670MX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 420M 's Advantages
Lower TDP (23W vs 75W)
NVIDIA GeForce GTX 670MX 's Advantages
Released 2 years and 1 months late
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (67.20GB/s vs 25.60GB/s)
864 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 420M
0.192 TFLOPS
GeForce GTX 670MX
+501%
1.154 TFLOPS
Graphics Card
Sep 2010
Release Date
Oct 2012
GeForce 400M
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
800 MHz
Memory Clock
700 MHz
Memory
512MB
Memory Size
3GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
192bit
25.60GB/s
Bandwidth
67.20GB/s
Render Config
-
-
-
2
SM Count
-
96
Shading Units
960
16
TMUs
80
4
ROPs
24
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
384 KB
-
-
-
Theoretical Performance
2.000 GPixel/s
Pixel Rate
12.02 GPixel/s
8.000 GTexel/s
Texture Rate
48.08 GTexel/s
-
-
-
192.0 GFLOPS
FP32 (float)
1154 GFLOPS
16.00 GFLOPS
FP64 (double)
48.08 GFLOPS
Board Design
23W
TDP
75W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GF108
GPU Name
GK104
N11P-GE-A1
GPU Variant
N13E-GR-A2
Fermi
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.585 billion
Transistors
3.54 billion
116 mm²
Die Size
294 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
2.1
CUDA
3.0
5.1
Shader Model
5.1
