NVIDIA GeForce GT 755M vs NVIDIA GeForce 840A

VS

NVIDIA GeForce GT 755M NVIDIA GeForce 840A

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 755M and 2GB VRAM GeForce 840A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 755M 's Advantages

Larger VRAM bandwidth (86.40GB/s vs 16.02GB/s)

NVIDIA GeForce 840A 's Advantages

Released 9 months late

Boost Clock1124MHz

Lower TDP (33W vs 50W)

Score

Benchmark

FP32 (float)

GeForce GT 755M

0.753 TFLOPS

GeForce 840A +14%

0.863 TFLOPS

GeForce GT 755M

VS

GeForce 840A

Graphics Card

Jun 2013

Release Date

Mar 2014

GeForce 700M

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

1350 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

86.40GB/s

Bandwidth

16.02GB/s

Render Config

-

SM Count

-

Compute Units

-

384

Shading Units

384

32

TMUs

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

Theoretical Performance

7.840 GPixel/s

Pixel Rate

8.992 GPixel/s

31.36 GTexel/s

Texture Rate

17.98 GTexel/s

-

FP16 (half)

-

752.6 GFLOPS

FP32 (float)

863.2 GFLOPS

31.36 GFLOPS

FP64 (double)

26.98 GFLOPS

Graphics Processor

GK107

GPU Name

GM108

GT 755M

GPU Variant

-

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

Unknown

118 mm²

Die Size

Unknown

Board Design

50W

TDP

33W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

5.0

5.1

Shader Model

5.1

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