NVIDIA GeForce GT 620M vs NVIDIA GeForce 820A

VS

NVIDIA GeForce GT 620M NVIDIA GeForce 820A

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 620M and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 620M 's Advantages

Larger VRAM bandwidth (28.80GB/s vs 14.40GB/s)

NVIDIA GeForce 820A 's Advantages

Released 1 years and 7 months late

Score

Benchmark

FP32 (float)

GeForce GT 620M

0.253 TFLOPS

GeForce 820A +17%

0.298 TFLOPS

GeForce GT 620M

VS

GeForce 820A

Graphics Card

Aug 2012

Release Date

Mar 2014

GeForce 600M

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

14.40GB/s

Render Config

2

SM Count

2

-

Compute Units

-

96

Shading Units

96

16

TMUs

16

4

ROPs

8

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

Theoretical Performance

2.640 GPixel/s

Pixel Rate

3.100 GPixel/s

10.56 GTexel/s

Texture Rate

12.40 GTexel/s

-

FP16 (half)

-

253.4 GFLOPS

FP32 (float)

297.6 GFLOPS

21.12 GFLOPS

FP64 (double)

24.80 GFLOPS

Graphics Processor

GF108

GPU Name

GF117

N13P-GLP-A1

GPU Variant

N15V-GM

Fermi

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.585 billion

Transistors

0.585 billion

116 mm²

Die Size

116 mm²

Board Design

15W

TDP

15W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

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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