NVIDIA GeForce GTX 1080 Max Q vs NVIDIA GeForce GT 640M

VS

NVIDIA GeForce GTX 1080 Max Q

NVIDIA GeForce GT 640M

We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 1080 Max Q and 2GB VRAM GeForce GT 640M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 Max Q 's Advantages

Released 5 years and 3 months late

Boost Clock1468MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (320.3GB/s vs 28.80GB/s)

2176 additional rendering cores

NVIDIA GeForce GT 640M 's Advantages

Lower TDP (32W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 Max Q +1465%

7.516 TFLOPS

GeForce GT 640M

0.48 TFLOPS

GeForce GTX 1080 Max Q

VS

GeForce GT 640M

Graphics Card

Jun 2017

Release Date

Mar 2012

GeForce 10 Mobile

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1290 MHz

Base Clock

-

1468 MHz

Boost Clock

-

1251 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR5X

Memory Type

DDR3

256bit

Memory Bus

128bit

320.3GB/s

Bandwidth

28.80GB/s

Render Config

-

20

SM Count

-

2560

Shading Units

384

160

TMUs

32

64

ROPs

16

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

93.95 GPixel/s

Pixel Rate

5.000 GPixel/s

234.9 GTexel/s

Texture Rate

20.00 GTexel/s

117.4 GFLOPS

FP16 (half)

-

7.516 TFLOPS

FP32 (float)

480.0 GFLOPS

234.9 GFLOPS

FP64 (double)

20.00 GFLOPS

Board Design

150W

TDP

32W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GP104

GPU Name

GK107

N17E-G3-A1

GPU Variant

N13P-GS

Pascal

Architecture

Kepler

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

7.2 billion

Transistors

1.27 billion

314 mm²

Die Size

118 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

6.1

CUDA

3.0

6.4

Shader Model

5.1

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