NVIDIA GeForce GTX 850A vs AMD Radeon R5 M255

VS

NVIDIA GeForce GTX 850A

AMD Radeon R5 M255

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 2GB VRAM Radeon R5 M255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages

256 additional rendering cores

AMD Radeon R5 M255 's Advantages

Released 7 months late

Boost Clock has increased by 0% (940MHz vs 936MHz)

Larger VRAM bandwidth (32.00GB/s vs 28.80GB/s)

Score

Benchmark

FP32 (float)

GeForce GTX 850A +66%

1.198 TFLOPS

Radeon R5 M255

0.721 TFLOPS

GeForce GTX 850A

VS

Radeon R5 M255

Graphics Card

Mar 2014

Release Date

Oct 2014

GeForce 800A

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

902 MHz

Base Clock

925 MHz

936 MHz

Boost Clock

940 MHz

900 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

32.00GB/s

Render Config

-

Compute Units

6

-

640

Shading Units

384

40

TMUs

24

16

ROPs

8

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

14.98 GPixel/s

Pixel Rate

7.520 GPixel/s

37.44 GTexel/s

Texture Rate

22.56 GTexel/s

-

FP16 (half)

721.9 GFLOPS

1198 GFLOPS

FP32 (float)

721.9 GFLOPS

37.44 GFLOPS

FP64 (double)

45.12 GFLOPS

Board Design

45W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM107

GPU Name

Topaz

N15P-GT-A1

GPU Variant

Topaz PRO (216-0858030)

Maxwell

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.55 billion

148 mm²

Die Size

125 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2.170

5.0

CUDA

-

5.1

Shader Model

6.5

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