AMD Radeon R5 A330 vs NVIDIA GeForce 840M

VS

AMD Radeon R5 A330

NVIDIA GeForce 840M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 A330 and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A330 's Advantages

Released 1 years and 7 months late

NVIDIA GeForce 840M 's Advantages

Boost Clock1124MHz

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

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 A330

0.659 TFLOPS

GeForce 840M +30%

0.863 TFLOPS

Radeon R5 A330

VS

GeForce 840M

Graphics Card

Oct 2015

Release Date

Mar 2014

All-In-One

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

900 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

14.40GB/s

Bandwidth

16.02GB/s

Render Config

5

Compute Units

-

320

Shading Units

384

20

TMUs

16

8

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

128 KB

L2 Cache

1024 KB

-

Theoretical Performance

8.240 GPixel/s

Pixel Rate

8.992 GPixel/s

20.60 GTexel/s

Texture Rate

17.98 GTexel/s

-

659.2 GFLOPS

FP32 (float)

863.2 GFLOPS

-

FP64 (double)

26.98 GFLOPS

Board Design

Unknown

TDP

33W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Exo

GPU Name

GM108

-

GPU Variant

N15S-GT

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

Unknown

56 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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