AMD Radeon R5 M255 vs NVIDIA GeForce GTX 980 Mobile

VS

AMD Radeon R5 M255

NVIDIA GeForce GTX 980 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 8GB VRAM GeForce GTX 980 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980 Mobile 's Advantages

Released 11 months late

Boost Clock has increased by 21% (1140MHz vs 940MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.4GB/s vs 32.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255

0.721 TFLOPS

GeForce GTX 980 Mobile +547%

4.669 TFLOPS

Radeon R5 M255

VS

GeForce GTX 980 Mobile

Graphics Card

Oct 2014

Release Date

Sep 2015

Gem System

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

925 MHz

Base Clock

1064 MHz

940 MHz

Boost Clock

1140 MHz

1000 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

32.00GB/s

Bandwidth

224.4GB/s

Render Config

6

Compute Units

-

384

Shading Units

2048

24

TMUs

128

8

ROPs

64

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

72.96 GPixel/s

22.56 GTexel/s

Texture Rate

145.9 GTexel/s

721.9 GFLOPS

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

4.669 TFLOPS

45.12 GFLOPS

FP64 (double)

145.9 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Topaz

GPU Name

GM204

Topaz PRO (216-0858030)

GPU Variant

N16E-GXX-A1

GCN 3.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

5.2 billion

125 mm²

Die Size

398 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

5.2

6.5

Shader Model

6.7 (6.4)

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