NVIDIA GeForce 820M vs NVIDIA GeForce GTX 780M

VS

NVIDIA GeForce 820M

NVIDIA GeForce GTX 780M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 4GB VRAM GeForce GTX 780M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820M 's Advantages

Released 1 years and 10 months late

Lower TDP (45W vs 122W)

NVIDIA GeForce GTX 780M 's Advantages

Boost Clock797MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 28.83GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 820M

0.622 TFLOPS

GeForce GTX 780M +293%

2.448 TFLOPS

GeForce 820M

VS

GeForce GTX 780M

Graphics Card

Mar 2015

Release Date

May 2013

GeForce 800M

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

771 MHz

-

Boost Clock

797 MHz

901 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.83GB/s

Bandwidth

160.0GB/s

Render Config

-

384

Shading Units

1536

32

TMUs

128

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

6.480 GPixel/s

Pixel Rate

25.50 GPixel/s

25.92 GTexel/s

Texture Rate

102.0 GTexel/s

-

622.1 GFLOPS

FP32 (float)

2.448 TFLOPS

25.92 GFLOPS

FP64 (double)

102.0 GFLOPS

Board Design

45W

TDP

122W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK107

GPU Name

GK104

-

GPU Variant

N14E-GTX-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

3.54 billion

118 mm²

Die Size

294 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.0

5.1

Shader Model

5.1

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