NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce GTX 680MX Mac Edition

VS

NVIDIA GeForce RTX 3080 Mobile

NVIDIA GeForce GTX 680MX Mac Edition

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Mobile and 2GB VRAM GeForce GTX 680MX Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Mobile 's Advantages

Released 8 years and 3 months late

Boost Clock1545MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 160.0GB/s)

4608 additional rendering cores

Lower TDP (115W vs 122W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Mobile +759%

18.98 TFLOPS

GeForce GTX 680MX Mac Edition

2.209 TFLOPS

GeForce RTX 3080 Mobile

VS

GeForce GTX 680MX Mac Edition

Graphics Card

Jan 2021

Release Date

Oct 2012

GeForce 30 Mobile

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1110 MHz

Base Clock

-

1545 MHz

Boost Clock

-

1750 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

448.0GB/s

Bandwidth

160.0GB/s

Render Config

-

48

SM Count

-

6144

Shading Units

1536

192

TMUs

128

96

ROPs

32

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

512 KB

-

Theoretical Performance

148.3 GPixel/s

Pixel Rate

23.01 GPixel/s

296.6 GTexel/s

Texture Rate

92.03 GTexel/s

18.98 TFLOPS

FP16 (half)

-

18.98 TFLOPS

FP32 (float)

2.209 TFLOPS

296.6 GFLOPS

FP64 (double)

92.03 GFLOPS

Board Design

115W

TDP

122W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GA104

GPU Name

GK104

GA104-775-A1

GPU Variant

N13E-GTX2-A2

Ampere

Architecture

Kepler

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

3.54 billion

392 mm²

Die Size

294 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

8.6

CUDA

3.0

6.6

Shader Model

5.1

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