Home GPU Comparison NVIDIA GeForce GT 420M vs NVIDIA GeForce GT 755M

NVIDIA GeForce GT 420M vs NVIDIA GeForce GT 755M

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 2GB VRAM GeForce GT 755M 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 50W)
NVIDIA GeForce GT 755M 's Advantages
Released 2 years and 9 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (86.40GB/s vs 25.60GB/s)
288 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GT 420M
0.192 TFLOPS
GeForce GT 755M +292%
0.753 TFLOPS
VS

Graphics Card

Sep 2010
Release Date
Jun 2013
GeForce 400M
Generation
GeForce 700M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
800 MHz
Memory Clock
1350 MHz

Memory

512MB
Memory Size
2GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
25.60GB/s
Bandwidth
86.40GB/s

Render Config

-
-
-
2
SM Count
-
96
Shading Units
384
16
TMUs
32
4
ROPs
16
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

2.000 GPixel/s
Pixel Rate
7.840 GPixel/s
8.000 GTexel/s
Texture Rate
31.36 GTexel/s
-
-
-
192.0 GFLOPS
FP32 (float)
752.6 GFLOPS
16.00 GFLOPS
FP64 (double)
31.36 GFLOPS

Board Design

23W
TDP
50W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

GF108
GPU Name
GK107
N11P-GE-A1
GPU Variant
GT 755M
Fermi
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.585 billion
Transistors
1.27 billion
116 mm²
Die Size
118 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

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