AMD Radeon R5 M255 vs NVIDIA GeForce 305M

VS

AMD Radeon R5 M255

NVIDIA GeForce 305M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 512MB VRAM GeForce 305M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M255 's Advantages

Released 4 years and 9 months late

Boost Clock940MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (32.00GB/s vs 11.20GB/s)

368 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255 +1848%

0.721 TFLOPS

GeForce 305M

0.037 TFLOPS

Radeon R5 M255

VS

GeForce 305M

Graphics Card

Oct 2014

Release Date

Jan 2010

Gem System

Generation

GeForce 300M

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

700 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

64bit

32.00GB/s

Bandwidth

11.20GB/s

Render Config

6

Compute Units

-

SM Count

2

384

Shading Units

16

24

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

32 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

2.100 GPixel/s

22.56 GTexel/s

Texture Rate

4.200 GTexel/s

721.9 GFLOPS

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

36.80 GFLOPS

45.12 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

14W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Topaz

GPU Name

GT218

Topaz PRO (216-0858030)

GPU Variant

N11M-LP1

GCN 3.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.55 billion

Transistors

0.26 billion

125 mm²

Die Size

57 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2.170

Vulkan

N/A

-

CUDA

1.2

6.5

Shader Model

4.1

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