NVIDIA GeForce 820M vs NVIDIA GeForce GT 620M

VS

NVIDIA GeForce 820M

NVIDIA GeForce GT 620M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 1024MB VRAM GeForce GT 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820M 's Advantages

Released 2 years and 7 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.83GB/s vs 28.80GB/s)

288 additional rendering cores

NVIDIA GeForce GT 620M 's Advantages

Lower TDP (15W vs 45W)

Score

Benchmark

FP32 (float)

GeForce 820M +145%

0.622 TFLOPS

GeForce GT 620M

0.253 TFLOPS

GeForce 820M

VS

GeForce GT 620M

Graphics Card

Mar 2015

Release Date

Aug 2012

GeForce 800M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

901 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.83GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

384

Shading Units

96

32

TMUs

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.480 GPixel/s

Pixel Rate

2.640 GPixel/s

25.92 GTexel/s

Texture Rate

10.56 GTexel/s

-

622.1 GFLOPS

FP32 (float)

253.4 GFLOPS

25.92 GFLOPS

FP64 (double)

21.12 GFLOPS

Board Design

45W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

GF108

-

GPU Variant

N13P-GLP-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

0.585 billion

118 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.1

5.1

Shader Model

5.1

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