AMD Radeon Pro 555X vs NVIDIA GeForce GTX 850M

VS

AMD Radeon Pro 555X

NVIDIA GeForce GTX 850M

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 2GB VRAM GeForce GTX 850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 4 years and 4 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (94.08GB/s vs 32.03GB/s)

128 additional rendering cores

NVIDIA GeForce GTX 850M 's Advantages

Lower TDP (45W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555X +20%

1.393 TFLOPS

GeForce GTX 850M

1.155 TFLOPS

Radeon Pro 555X

VS

GeForce GTX 850M

Graphics Card

Jul 2018

Release Date

Mar 2014

Radeon Pro Mac

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1470 MHz

Memory Clock

1001 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

94.08GB/s

Bandwidth

32.03GB/s

Render Config

12

Compute Units

-

768

Shading Units

640

48

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

1024 KB

L2 Cache

2 MB

-

Theoretical Performance

14.51 GPixel/s

Pixel Rate

14.43 GPixel/s

43.54 GTexel/s

Texture Rate

36.08 GTexel/s

1393 GFLOPS

FP16 (half)

-

1393 GFLOPS

FP32 (float)

1155 GFLOPS

87.07 GFLOPS

FP64 (double)

36.08 GFLOPS

Board Design

75W

TDP

45W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 21

GPU Name

GM107

Polaris 21 PRO

GPU Variant

N15P-GT-A1

GCN 4.0

Architecture

Maxwell

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

1.87 billion

123 mm²

Die Size

148 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

6.4

Shader Model

5.1

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