NVIDIA GeForce GT 650M vs NVIDIA GeForce 840M

VS

NVIDIA GeForce GT 650M NVIDIA GeForce 840M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 650M and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 650M 's Advantages

Larger VRAM bandwidth (28.80GB/s vs 16.02GB/s)

NVIDIA GeForce 840M 's Advantages

Released 2 years late

Boost Clock has increased by 18% (1124MHz vs 950MHz)

More VRAM (2GB vs 1GB)

Lower TDP (33W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GT 650M

0.73 TFLOPS

GeForce 840M +18%

0.863 TFLOPS

GeForce GT 650M

VS

GeForce 840M

Graphics Card

Mar 2012

Release Date

Mar 2014

GeForce 600M

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

835 MHz

Base Clock

1029 MHz

950 MHz

Boost Clock

1124 MHz

900 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.80GB/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

7.600 GPixel/s

Pixel Rate

8.992 GPixel/s

30.40 GTexel/s

Texture Rate

17.98 GTexel/s

-

FP16 (half)

-

729.6 GFLOPS

FP32 (float)

863.2 GFLOPS

30.40 GFLOPS

FP64 (double)

26.98 GFLOPS

Graphics Processor

GK107

GPU Name

GM108

N13P-GT-A2

GPU Variant

N15S-GT

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

Unknown

118 mm²

Die Size

Unknown

Board Design

45W

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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