NVIDIA GeForce GT 745A vs AMD Radeon R5 M255

VS

NVIDIA GeForce GT 745A

AMD Radeon R5 M255

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 745A and 2GB VRAM Radeon R5 M255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M255 's Advantages

Released 1 years and 2 months late

Boost Clock has increased by 3% (940MHz vs 915MHz)

Larger VRAM bandwidth (32.00GB/s vs 28.80GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 745A

0.703 TFLOPS

Radeon R5 M255 +2%

0.721 TFLOPS

GeForce GT 745A

VS

Radeon R5 M255

Graphics Card

Aug 2013

Release Date

Oct 2014

GeForce 700A

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

837 MHz

Base Clock

925 MHz

915 MHz

Boost Clock

940 MHz

900 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

32.00GB/s

Render Config

-

Compute Units

6

-

384

Shading Units

384

32

TMUs

24

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.320 GPixel/s

Pixel Rate

7.520 GPixel/s

29.28 GTexel/s

Texture Rate

22.56 GTexel/s

-

FP16 (half)

721.9 GFLOPS

702.7 GFLOPS

FP32 (float)

721.9 GFLOPS

29.28 GFLOPS

FP64 (double)

45.12 GFLOPS

Board Design

33W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GK107

GPU Name

Topaz

N14P-LP

GPU Variant

Topaz PRO (216-0858030)

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

1.55 billion

118 mm²

Die Size

125 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2.170

3.0

CUDA

-

5.1

Shader Model

6.5

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