AMD Radeon R9 M390X vs NVIDIA GeForce GTX 580M

VS

AMD Radeon R9 M390X

NVIDIA GeForce GTX 580M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X and 2GB VRAM GeForce GTX 580M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

Released 3 years and 11 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 96.00GB/s)

1664 additional rendering cores

Lower TDP (75W vs 100W)

Score

Benchmark

FP32 (float)

Radeon R9 M390X +211%

2.961 TFLOPS

GeForce GTX 580M

0.952 TFLOPS

Radeon R9 M390X

VS

GeForce GTX 580M

Graphics Card

May 2015

Release Date

Jun 2011

Crystal System

Generation

GeForce 500M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1250 MHz

Memory Clock

750 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

96.00GB/s

Render Config

32

Compute Units

-

SM Count

8

2048

Shading Units

384

128

TMUs

64

32

ROPs

32

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

9.920 GPixel/s

92.54 GTexel/s

Texture Rate

39.68 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

952.3 GFLOPS

185.1 GFLOPS

FP64 (double)

79.36 GFLOPS

Board Design

75W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

GF114

Amethyst XT

GPU Variant

N12E-GTX2-A1

GCN 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

1.95 billion

366 mm²

Die Size

332 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.3

Shader Model

5.1

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