AMD Radeon Pro 555X vs NVIDIA GeForce 8400M GS

VS

AMD Radeon Pro 555X NVIDIA GeForce 8400M GS

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 256MB VRAM GeForce 8400M GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 11 years and 2 months late

Larger VRAM bandwidth (94.08GB/s vs 6.400GB/s)

752 additional rendering cores

NVIDIA GeForce 8400M GS 's Advantages

Lower TDP (11W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555X +5257%

1.393 TFLOPS

GeForce 8400M GS

0.026 TFLOPS

Radeon Pro 555X

VS

GeForce 8400M GS

Graphics Card

Jul 2018

Release Date

May 2007

Radeon Pro Mac

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-I

Clock Speeds

-

Base Clock

-

Boost Clock

-

1470 MHz

Memory Clock

400 MHz

Memory

4GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

94.08GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

2

12

Compute Units

-

768

Shading Units

16

48

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

16 KB

Theoretical Performance

14.51 GPixel/s

Pixel Rate

1.600 GPixel/s

43.54 GTexel/s

Texture Rate

3.200 GTexel/s

1393 GFLOPS

FP16 (half)

-

1393 GFLOPS

FP32 (float)

25.60 GFLOPS

87.07 GFLOPS

FP64 (double)

-

Graphics Processor

Polaris 21

GPU Name

G86

Polaris 21 PRO

GPU Variant

NB8M-GS

GCN 4.0

Architecture

Tesla

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

80 nm

3 billion

Transistors

0.21 billion

123 mm²

Die Size

127 mm²

Board Design

75W

TDP

11W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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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