AMD Radeon R5 A255 vs NVIDIA GeForce GT 755M

VS

AMD Radeon R5 A255 NVIDIA GeForce GT 755M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 2GB VRAM GeForce GT 755M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Released 7 months late

Boost Clock940MHz

NVIDIA GeForce GT 755M 's Advantages

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (86.40GB/s vs 64.00GB/s)

Score

Benchmark

FP32 (float)

Radeon R5 A255

0.721 TFLOPS

GeForce GT 755M +4%

0.753 TFLOPS

Radeon R5 A255

VS

GeForce GT 755M

Graphics Card

Jan 2014

Release Date

Jun 2013

All-In-One

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

1350 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

86.40GB/s

Render Config

-

SM Count

-

6

Compute Units

-

384

Shading Units

384

24

TMUs

32

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

Theoretical Performance

7.520 GPixel/s

Pixel Rate

7.840 GPixel/s

22.56 GTexel/s

Texture Rate

31.36 GTexel/s

-

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

752.6 GFLOPS

-

FP64 (double)

31.36 GFLOPS

Graphics Processor

Topaz

GPU Name

GK107

Topaz PRO (216-0858030)

GPU Variant

GT 755M

GCN 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

1.27 billion

125 mm²

Die Size

118 mm²

Board Design

Unknown

TDP

50W

-

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

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.0

6.5

Shader Model

5.1

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