NVIDIA GeForce 840M vs NVIDIA GeForce GT 625M

VS

NVIDIA GeForce 840M NVIDIA GeForce GT 625M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 2GB VRAM GeForce GT 625M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840M 's Advantages

Released 1 years and 5 months late

Boost Clock1124MHz

Larger VRAM bandwidth (16.02GB/s vs 14.40GB/s)

288 additional rendering cores

NVIDIA GeForce GT 625M 's Advantages

Lower TDP (15W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 840M +259%

0.863 TFLOPS

GeForce GT 625M

0.24 TFLOPS

GeForce 840M

VS

GeForce GT 625M

Graphics Card

Mar 2014

Release Date

Oct 2012

GeForce 800M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

16.02GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

2

-

Compute Units

-

384

Shading Units

96

16

TMUs

16

8

ROPs

4

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

128 KB

Theoretical Performance

8.992 GPixel/s

Pixel Rate

2.500 GPixel/s

17.98 GTexel/s

Texture Rate

10.00 GTexel/s

-

FP16 (half)

-

863.2 GFLOPS

FP32 (float)

240.0 GFLOPS

26.98 GFLOPS

FP64 (double)

20.00 GFLOPS

Graphics Processor

GM108

GPU Name

GF117

N15S-GT

GPU Variant

N13M-GS-B-A2

Maxwell

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

0.585 billion

Unknown

Die Size

116 mm²

Board Design

33W

TDP

15W

-

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

1.1

1.3

Vulkan

N/A

5.0

CUDA

2.1

5.1

Shader Model

5.1

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