NVIDIA GeForce GTX 670M vs NVIDIA GeForce 840M

VS

NVIDIA GeForce GTX 670M

NVIDIA GeForce 840M

We compared two Mobile platform GPUs: 1536MB VRAM GeForce GTX 670M and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 670M 's Advantages

Larger VRAM bandwidth (72.00GB/s vs 16.02GB/s)

NVIDIA GeForce 840M 's Advantages

Released 2 years late

Boost Clock1124MHz

More VRAM (2GB vs 1536GB)

48 additional rendering cores

Lower TDP (33W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 670M

0.804 TFLOPS

GeForce 840M +7%

0.863 TFLOPS

GeForce GTX 670M

VS

GeForce 840M

Graphics Card

Mar 2012

Release Date

Mar 2014

GeForce 600M

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

750 MHz

Memory Clock

1001 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

64bit

72.00GB/s

Bandwidth

16.02GB/s

Render Config

-

7

SM Count

-

336

Shading Units

384

56

TMUs

16

24

ROPs

8

-

64 KB (per SM)

L1 Cache

64 KB (per SMM)

384 KB

L2 Cache

1024 KB

-

Theoretical Performance

8.372 GPixel/s

Pixel Rate

8.992 GPixel/s

33.49 GTexel/s

Texture Rate

17.98 GTexel/s

-

803.7 GFLOPS

FP32 (float)

863.2 GFLOPS

66.98 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

75W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF114

GPU Name

GM108

N13E-GS1-LP-A1

GPU Variant

N15S-GT

Fermi 2.0

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

Unknown

332 mm²

Die Size

Unknown

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

2.1

CUDA

5.0

5.1

Shader Model

5.1

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