AMD Radeon R5 A255 vs NVIDIA GeForce GT 445M

VS

AMD Radeon R5 A255

NVIDIA GeForce GT 445M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 1024MB VRAM GeForce GT 445M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Released 3 years and 4 months late

Boost Clock940MHz

Larger VRAM bandwidth (64.00GB/s vs 40.00GB/s)

240 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 A255 +119%

0.721 TFLOPS

GeForce GT 445M

0.328 TFLOPS

Radeon R5 A255

VS

GeForce GT 445M

Graphics Card

Jan 2014

Release Date

Sep 2010

All-In-One

Generation

GeForce 400M

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

625 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

40.00GB/s

Render Config

6

Compute Units

-

SM Count

3

384

Shading Units

144

24

TMUs

24

8

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

3.420 GPixel/s

22.56 GTexel/s

Texture Rate

13.68 GTexel/s

-

721.9 GFLOPS

FP32 (float)

328.3 GFLOPS

-

FP64 (double)

27.36 GFLOPS

Board Design

Unknown

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Topaz

GPU Name

GF106

Topaz PRO (216-0858030)

GPU Variant

N11E-GE-A1

GCN 3.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.55 billion

Transistors

1.17 billion

125 mm²

Die Size

238 mm²

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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