NVIDIA GeForce 840M vs AMD Radeon HD 8850M

VS

NVIDIA GeForce 840M

AMD Radeon HD 8850M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 2GB VRAM Radeon HD 8850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840M 's Advantages

Released 11 months late

Boost Clock has increased by 80% (1124MHz vs 625MHz)

AMD Radeon HD 8850M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 16.02GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840M +7%

0.863 TFLOPS

Radeon HD 8850M

0.8 TFLOPS

GeForce 840M

VS

Radeon HD 8850M

Graphics Card

Mar 2014

Release Date

Apr 2013

GeForce 800M

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1029 MHz

Base Clock

575 MHz

1124 MHz

Boost Clock

625 MHz

1001 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

10

-

384

Shading Units

640

16

TMUs

40

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

10.00 GPixel/s

17.98 GTexel/s

Texture Rate

25.00 GTexel/s

-

863.2 GFLOPS

FP32 (float)

800.0 GFLOPS

26.98 GFLOPS

FP64 (double)

50.00 GFLOPS

Board Design

33W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM108

GPU Name

Venus

N15S-GT

GPU Variant

Venus PRO (216-0846009)

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.5 billion

Unknown

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

5.0

CUDA

-

5.1

Shader Model

6.5 (5.1)

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