AMD Radeon R5 A255 vs NVIDIA GeForce GT 555M

VS

AMD Radeon R5 A255 NVIDIA GeForce GT 555M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 2GB VRAM GeForce GT 555M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Released 1 years and 10 months late

Boost Clock940MHz

Larger VRAM bandwidth (64.00GB/s vs 28.80GB/s)

240 additional rendering cores

NVIDIA GeForce GT 555M 's Advantages

More VRAM (2GB vs 1GB)

Score

Benchmark

FP32 (float)

Radeon R5 A255 +85%

0.721 TFLOPS

GeForce GT 555M

0.389 TFLOPS

Radeon R5 A255

VS

GeForce GT 555M

Graphics Card

Jan 2014

Release Date

Mar 2012

All-In-One

Generation

GeForce 500M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

6

Compute Units

-

384

Shading Units

144

24

TMUs

24

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

Theoretical Performance

7.520 GPixel/s

Pixel Rate

2.700 GPixel/s

22.56 GTexel/s

Texture Rate

16.20 GTexel/s

-

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

388.8 GFLOPS

-

FP64 (double)

32.40 GFLOPS

Graphics Processor

Topaz

GPU Name

GF116

Topaz PRO (216-0858030)

GPU Variant

N12E-GE2-A1

GCN 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.55 billion

Transistors

1.17 billion

125 mm²

Die Size

238 mm²

Board Design

Unknown

TDP

35W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.2.170

Vulkan

N/A

-

CUDA

2.1

6.5

Shader Model

5.1

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