NVIDIA GeForce 705A vs NVIDIA GeForce GT 420M

VS

NVIDIA GeForce 705A

NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 705A 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 705A 's Advantages

Released 3 years and 10 months late

More VRAM (1024GB vs 512GB)

Lower TDP (15W vs 23W)

NVIDIA GeForce GT 420M 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 14.40GB/s)

48 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 705A

0.091 TFLOPS

GeForce GT 420M +110%

0.192 TFLOPS

GeForce 705A

VS

GeForce GT 420M

Graphics Card

Jul 2014

Release Date

Sep 2010

GeForce 700A

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

25.60GB/s

Render Config

-

1

SM Count

2

48

Shading Units

96

8

TMUs

16

4

ROPs

4

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

950.0 MPixel/s

Pixel Rate

2.000 GPixel/s

3.800 GTexel/s

Texture Rate

8.000 GTexel/s

-

91.20 GFLOPS

FP32 (float)

192.0 GFLOPS

7.600 GFLOPS

FP64 (double)

16.00 GFLOPS

Board Design

15W

TDP

23W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF119

GPU Name

GF108

GF119 B1

GPU Variant

N11P-GE-A1

Fermi 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.292 billion

Transistors

0.585 billion

79 mm²

Die Size

116 mm²

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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