NVIDIA GeForce 840A vs NVIDIA GeForce GTX 670MX

VS

NVIDIA GeForce 840A

NVIDIA GeForce GTX 670MX

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 3GB VRAM GeForce GTX 670MX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Released 1 years and 5 months late

Boost Clock1124MHz

Lower TDP (33W vs 75W)

NVIDIA GeForce GTX 670MX 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (67.20GB/s vs 16.02GB/s)

576 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A

0.863 TFLOPS

GeForce GTX 670MX +33%

1.154 TFLOPS

GeForce 840A

VS

GeForce GTX 670MX

Graphics Card

Mar 2014

Release Date

Oct 2012

GeForce 800A

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

3GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

192bit

16.02GB/s

Bandwidth

67.20GB/s

Render Config

-

384

Shading Units

960

16

TMUs

80

8

ROPs

24

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

384 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

12.02 GPixel/s

17.98 GTexel/s

Texture Rate

48.08 GTexel/s

-

863.2 GFLOPS

FP32 (float)

1154 GFLOPS

26.98 GFLOPS

FP64 (double)

48.08 GFLOPS

Board Design

33W

TDP

75W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

GK104

-

GPU Variant

N13E-GR-A2

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

3.54 billion

Unknown

Die Size

294 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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