AMD Radeon HD 8870M vs NVIDIA GeForce 840M

VS

AMD Radeon HD 8870M

NVIDIA GeForce 840M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8870M and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870M 's Advantages

Larger VRAM bandwidth (72.00GB/s vs 16.02GB/s)

256 additional rendering cores

NVIDIA GeForce 840M 's Advantages

Released 11 months late

Boost Clock has increased by 45% (1124MHz vs 775MHz)

Score

Benchmark

FP32 (float)

Radeon HD 8870M +14%

0.992 TFLOPS

GeForce 840M

0.863 TFLOPS

Radeon HD 8870M

VS

GeForce 840M

Graphics Card

Apr 2013

Release Date

Mar 2014

Solar System

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

725 MHz

Base Clock

1029 MHz

775 MHz

Boost Clock

1124 MHz

1125 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

16.02GB/s

Render Config

10

Compute Units

-

640

Shading Units

384

40

TMUs

16

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

12.40 GPixel/s

Pixel Rate

8.992 GPixel/s

31.00 GTexel/s

Texture Rate

17.98 GTexel/s

-

992.0 GFLOPS

FP32 (float)

863.2 GFLOPS

62.00 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

Unknown

TDP

33W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Venus

GPU Name

GM108

Venus XT (216-0846000)

GPU Variant

N15S-GT

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

Unknown

123 mm²

Die Size

Unknown

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

5.0

6.5 (5.1)

Shader Model

5.1

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