NVIDIA GeForce 840A vs AMD Radeon Pro 455

VS

NVIDIA GeForce 840A

AMD Radeon Pro 455

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 2GB VRAM Radeon Pro 455 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Boost Clock1124MHz

Lower TDP (33W vs 35W)

AMD Radeon Pro 455 's Advantages

Released 2 years and 7 months late

Larger VRAM bandwidth (81.28GB/s vs 16.02GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A

0.863 TFLOPS

Radeon Pro 455 +52%

1.313 TFLOPS

GeForce 840A

VS

Radeon Pro 455

Graphics Card

Mar 2014

Release Date

Oct 2016

GeForce 800A

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

1270 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

81.28GB/s

Render Config

-

Compute Units

12

-

384

Shading Units

768

16

TMUs

48

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

13.68 GPixel/s

17.98 GTexel/s

Texture Rate

41.04 GTexel/s

-

FP16 (half)

1313 GFLOPS

863.2 GFLOPS

FP32 (float)

1313 GFLOPS

26.98 GFLOPS

FP64 (double)

82.08 GFLOPS

Board Design

33W

TDP

35W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GM108

GPU Name

Baffin

-

GPU Variant

Baffin PRO

Maxwell

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

Unknown

Transistors

3 billion

Unknown

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

6.4

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