NVIDIA GeForce GTX 780M vs NVIDIA GeForce GT 620M

VS

NVIDIA GeForce GTX 780M

NVIDIA GeForce GT 620M

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 780M 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 780M 's Advantages

Released 9 months late

Boost Clock797MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)

1440 additional rendering cores

NVIDIA GeForce GT 620M 's Advantages

Lower TDP (15W vs 122W)

Score

Benchmark

FP32 (float)

GeForce GTX 780M +867%

2.448 TFLOPS

GeForce GT 620M

0.253 TFLOPS

GeForce GTX 780M

VS

GeForce GT 620M

Graphics Card

May 2013

Release Date

Aug 2012

GeForce 700M

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

771 MHz

Base Clock

-

797 MHz

Boost Clock

-

1250 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

1536

Shading Units

96

128

TMUs

16

32

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

25.50 GPixel/s

Pixel Rate

2.640 GPixel/s

102.0 GTexel/s

Texture Rate

10.56 GTexel/s

-

2.448 TFLOPS

FP32 (float)

253.4 GFLOPS

102.0 GFLOPS

FP64 (double)

21.12 GFLOPS

Board Design

122W

TDP

15W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

GF108

N14E-GTX-A2

GPU Variant

N13P-GLP-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.585 billion

294 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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