NVIDIA GeForce GTX 860M vs AMD Radeon R5 A255

VS

NVIDIA GeForce GTX 860M

AMD Radeon R5 A255

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 860M and 1024MB VRAM Radeon R5 A255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 860M 's Advantages

Boost Clock has increased by 15% (1085MHz vs 940MHz)

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (80.19GB/s vs 64.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 860M +92%

1.389 TFLOPS

Radeon R5 A255

0.721 TFLOPS

GeForce GTX 860M

VS

Radeon R5 A255

Graphics Card

Jan 2014

Release Date

Jan 2014

GeForce 800M

Generation

All-In-One

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

1020 MHz

Base Clock

925 MHz

1085 MHz

Boost Clock

940 MHz

1253 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

80.19GB/s

Bandwidth

64.00GB/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

17.36 GPixel/s

Pixel Rate

7.520 GPixel/s

43.40 GTexel/s

Texture Rate

22.56 GTexel/s

-

1389 GFLOPS

FP32 (float)

721.9 GFLOPS

43.40 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

GM107

GPU Name

Topaz

N15P-GX-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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