NVIDIA GeForce 840M vs AMD Radeon 625 Mobile

VS

NVIDIA GeForce 840M

AMD Radeon 625 Mobile

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 2GB VRAM Radeon 625 Mobile 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 10% (1124MHz vs 1024MHz)

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

Lower TDP (33W vs 50W)

AMD Radeon 625 Mobile 's Advantages

Released 5 years and 2 months late

Score

Benchmark

FP32 (float)

GeForce 840M +9%

0.863 TFLOPS

Radeon 625 Mobile

0.786 TFLOPS

GeForce 840M

VS

Radeon 625 Mobile

Graphics Card

Mar 2014

Release Date

May 2019

GeForce 800M

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1029 MHz

Base Clock

730 MHz

1124 MHz

Boost Clock

1024 MHz

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

-

Compute Units

6

-

384

Shading Units

384

16

TMUs

24

8

ROPs

8

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

8.192 GPixel/s

17.98 GTexel/s

Texture Rate

24.58 GTexel/s

-

FP16 (half)

786.4 GFLOPS

863.2 GFLOPS

FP32 (float)

786.4 GFLOPS

26.98 GFLOPS

FP64 (double)

49.15 GFLOPS

Board Design

33W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GM108

GPU Name

Polaris 24

N15S-GT

GPU Variant

Polaris 24 XT (216-0867030)

Maxwell

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.55 billion

Unknown

Die Size

125 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

6.3

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