NVIDIA GeForce 840M vs NVIDIA GeForce GTX 970M

VS

NVIDIA GeForce 840M

NVIDIA GeForce GTX 970M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 3GB VRAM GeForce GTX 970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840M 's Advantages

Boost Clock has increased by 8% (1124MHz vs 1038MHz)

NVIDIA GeForce GTX 970M 's Advantages

Released 7 months late

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (120.3GB/s vs 16.02GB/s)

896 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840M

0.863 TFLOPS

GeForce GTX 970M +207%

2.657 TFLOPS

Blender

GeForce 840M

67

GeForce GTX 970M +210%

208

GeForce 840M

VS

GeForce GTX 970M

Graphics Card

Mar 2014

Release Date

Oct 2014

GeForce 800M

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

1029 MHz

Base Clock

924 MHz

1124 MHz

Boost Clock

1038 MHz

1001 MHz

Memory Clock

1253 MHz

Memory

2GB

Memory Size

3GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

192bit

16.02GB/s

Bandwidth

120.3GB/s

Render Config

-

384

Shading Units

1280

16

TMUs

80

8

ROPs

48

-

64 KB (per SMM)

L1 Cache

48 KB (per SMM)

1024 KB

L2 Cache

1536 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

49.82 GPixel/s

17.98 GTexel/s

Texture Rate

83.04 GTexel/s

-

863.2 GFLOPS

FP32 (float)

2.657 TFLOPS

26.98 GFLOPS

FP64 (double)

83.04 GFLOPS

Board Design

33W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GM108

GPU Name

GM204

N15S-GT

GPU Variant

N16E-GT-A2

Maxwell

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

5.2 billion

Unknown

Die Size

398 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

5.0

CUDA

5.2

5.1

Shader Model

6.7 (6.4)

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