NVIDIA GeForce 705A vs AMD Radeon R9 M390 Mac Edition

VS

NVIDIA GeForce 705A

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 705A and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 705A 's Advantages

Lower TDP (15W vs 80W)

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 10 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 14.40GB/s)

976 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 705A

0.091 TFLOPS

Radeon R9 M390 Mac Edition +2056%

1.962 TFLOPS

GeForce 705A

VS

Radeon R9 M390 Mac Edition

Graphics Card

Jul 2014

Release Date

May 2015

GeForce 700A

Generation

Crystal System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1365 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

16

1

SM Count

-

48

Shading Units

1024

8

TMUs

64

4

ROPs

32

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

950.0 MPixel/s

Pixel Rate

30.66 GPixel/s

3.800 GTexel/s

Texture Rate

61.31 GTexel/s

-

91.20 GFLOPS

FP32 (float)

1.962 TFLOPS

7.600 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

15W

TDP

80W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GF119

GPU Name

Pitcairn

GF119 B1

GPU Variant

Pitcairn PRO (215-0828062)

Fermi 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.292 billion

Transistors

2.8 billion

79 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

5.1

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