AMD Radeon Pro 555 vs NVIDIA GeForce 840A

VS

AMD Radeon Pro 555

NVIDIA GeForce 840A

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 555 and 2GB VRAM GeForce 840A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555 's Advantages

Released 3 years and 3 months late

Larger VRAM bandwidth (81.60GB/s vs 16.02GB/s)

384 additional rendering cores

NVIDIA GeForce 840A 's Advantages

Boost Clock1124MHz

Lower TDP (33W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555 +51%

1.306 TFLOPS

GeForce 840A

0.863 TFLOPS

Radeon Pro 555

VS

GeForce 840A

Graphics Card

Jun 2017

Release Date

Mar 2014

Radeon Pro Mac

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

1275 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

81.60GB/s

Bandwidth

16.02GB/s

Render Config

12

Compute Units

-

768

Shading Units

384

48

TMUs

16

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

8.992 GPixel/s

40.80 GTexel/s

Texture Rate

17.98 GTexel/s

1306 GFLOPS

FP16 (half)

-

1306 GFLOPS

FP32 (float)

863.2 GFLOPS

81.60 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

75W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 21

GPU Name

GM108

Polaris 21 PRO

GPU Variant

-

GCN 4.0

Architecture

Maxwell

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

Unknown

123 mm²

Die Size

Unknown

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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