AMD Radeon Pro 555X vs NVIDIA GeForce 8400M G

VS

AMD Radeon Pro 555X

NVIDIA GeForce 8400M G

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X 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 Pro 555X 's Advantages

Released 11 years and 2 months late

More VRAM (4GB vs 256GB)

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

760 additional rendering cores

NVIDIA GeForce 8400M G 's Advantages

Lower TDP (10W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555X +10615%

1.393 TFLOPS

GeForce 8400M G

0.013 TFLOPS

Radeon Pro 555X

VS

GeForce 8400M G

Graphics Card

Jul 2018

Release Date

May 2007

Radeon Pro Mac

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1470 MHz

Memory Clock

400 MHz

Memory

4GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

94.08GB/s

Bandwidth

6.400GB/s

Render Config

12

Compute Units

-

SM Count

1

768

Shading Units

8

48

TMUs

8

16

ROPs

4

-

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)

12.80 GFLOPS

87.07 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

10W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 21

GPU Name

G86

Polaris 21 PRO

GPU Variant

NB8M-SE

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

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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