AMD Radeon RX 580X Mobile vs NVIDIA GeForce 8400M G

VS

AMD Radeon RX 580X Mobile

NVIDIA GeForce 8400M G

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580X Mobile and 256MB VRAM GeForce 8400M G to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X Mobile 's Advantages

Released 10 years and 11 months late

Boost Clock1077MHz

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (256.0GB/s vs 6.400GB/s)

2296 additional rendering cores

NVIDIA GeForce 8400M G 's Advantages

Lower TDP (10W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 580X Mobile +38076%

4.963 TFLOPS

GeForce 8400M G

0.013 TFLOPS

Radeon RX 580X Mobile

VS

GeForce 8400M G

Graphics Card

Apr 2018

Release Date

May 2007

Mobility Radeon

Generation

GeForce 8M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 1.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1077 MHz

Boost Clock

-

2000 MHz

Memory Clock

400 MHz

Memory

8GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

256.0GB/s

Bandwidth

6.400GB/s

Render Config

36

Compute Units

-

SM Count

1

2304

Shading Units

8

144

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

2 MB

L2 Cache

16 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

1.600 GPixel/s

155.1 GTexel/s

Texture Rate

3.200 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

12.80 GFLOPS

310.2 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

10W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 20

GPU Name

G86

Polaris 20M XT

GPU Variant

NB8M-SE

GCN 4.0

Architecture

Tesla

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

80 nm

5.7 billion

Transistors

0.21 billion

232 mm²

Die Size

127 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

6.4

Shader Model

4.0

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