GeForce GT 740A vs GeForce GT 420M
We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 740A and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GT 740A 's Advantages
Released 2 years and 11 months late
More VRAM (2GB vs 512GB)
288 additional rendering cores
GeForce GT 420M 's Advantages
Larger VRAM bandwidth (25.60GB/s vs 14.40GB/s)
Lower TDP (23W vs 33W)
Score
Benchmark
FP32 (float)
GeForce GT 740A
+292%
753
GeForce GT 420M
192
Graphics Card
Aug 2013
Release Date
Sep 2010
GeForce 700A
Generation
GeForce 400M
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
900 MHz
Memory Clock
800 MHz
Memory
2GB
Memory Size
512MB
DDR3
Memory Type
DDR3
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
25.60GB/s
Render Config
-
SM Count
2
384
Shading Units
96
32
TMUs
16
8
ROPs
4
16 KB (per SMX)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
256 KB
Theoretical Performance
7.840 GPixel/s
Pixel Rate
2.000 GPixel/s
31.36 GTexel/s
Texture Rate
8.000 GTexel/s
752.6 GFLOPS
FP32 (float)
192.0 GFLOPS
31.36 GFLOPS
FP64 (double)
16.00 GFLOPS
Board Design
33W
TDP
23W
No outputs
Outputs
No outputs
Graphics Processor
GK208
GPU Name
GF108
GT 740M
GPU Variant
N11P-GE-A1
Kepler 2.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.02 billion
Transistors
0.585 billion
87 mm²
Die Size
116 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.5
CUDA
2.1
5.1
Shader Model
5.1
