NVIDIA GeForce GTX 860M OEM vs NVIDIA GeForce 840A

VS

NVIDIA GeForce GTX 860M OEM

NVIDIA GeForce 840A

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 860M OEM and 2GB VRAM GeForce 840A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 860M OEM 's Advantages

Released 11 months late

Larger VRAM bandwidth (80.19GB/s vs 16.02GB/s)

256 additional rendering cores

NVIDIA GeForce 840A 's Advantages

Boost Clock has increased by 4% (1124MHz vs 1085MHz)

Lower TDP (33W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 860M OEM +60%

1.389 TFLOPS

GeForce 840A

0.863 TFLOPS

GeForce GTX 860M OEM

VS

GeForce 840A

Graphics Card

Feb 2015

Release Date

Mar 2014

GeForce 800M

Generation

GeForce 800A

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

1020 MHz

Base Clock

1029 MHz

1085 MHz

Boost Clock

1124 MHz

1253 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

80.19GB/s

Bandwidth

16.02GB/s

Render Config

-

640

Shading Units

384

40

TMUs

16

ROPs

8

-

64 KB (per SMM)

L1 Cache

64 KB (per SMM)

2 MB

L2 Cache

1024 KB

-

Theoretical Performance

17.36 GPixel/s

Pixel Rate

8.992 GPixel/s

43.40 GTexel/s

Texture Rate

17.98 GTexel/s

-

1389 GFLOPS

FP32 (float)

863.2 GFLOPS

43.40 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

75W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GM107

GPU Name

GM108

N15P-GX-A1

GPU Variant

-

Maxwell

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

Unknown

148 mm²

Die Size

Unknown

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

5.0

CUDA

5.0

5.1

Shader Model

5.1

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