NVIDIA GeForce GTX 980 Mobile vs NVIDIA GeForce GT 620M

VS

NVIDIA GeForce GTX 980 Mobile

NVIDIA GeForce GT 620M

We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 980 Mobile 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 GTX 980 Mobile 's Advantages

Released 3 years and 1 months late

Boost Clock1140MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (224.4GB/s vs 28.80GB/s)

1952 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 980 Mobile +1745%

4.669 TFLOPS

GeForce GT 620M

0.253 TFLOPS

GeForce GTX 980 Mobile

VS

GeForce GT 620M

Graphics Card

Sep 2015

Release Date

Aug 2012

GeForce 900M

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

1064 MHz

Base Clock

-

1140 MHz

Boost Clock

-

1753 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

224.4GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

2048

Shading Units

96

128

TMUs

16

64

ROPs

4

-

48 KB (per SMM)

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

72.96 GPixel/s

Pixel Rate

2.640 GPixel/s

145.9 GTexel/s

Texture Rate

10.56 GTexel/s

-

4.669 TFLOPS

FP32 (float)

253.4 GFLOPS

145.9 GFLOPS

FP64 (double)

21.12 GFLOPS

Board Design

Unknown

TDP

15W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GM204

GPU Name

GF108

N16E-GXX-A1

GPU Variant

N13P-GLP-A1

Maxwell 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5.2 billion

Transistors

0.585 billion

398 mm²

Die Size

116 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.2

CUDA

2.1

6.7 (6.4)

Shader Model

5.1

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