AMD Radeon R5 M315 vs AMD Radeon R9 M385X

VS

AMD Radeon R5 M315

AMD Radeon R9 M385X

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M315 and 4GB VRAM Radeon R9 M385X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385X 's Advantages

Boost Clock1100MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (76.80GB/s vs 14.40GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M315

0.745 TFLOPS

Radeon R9 M385X +164%

1.971 TFLOPS

Radeon R5 M315

VS

Radeon R9 M385X

Graphics Card

May 2015

Release Date

May 2015

Gem System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1100 MHz

900 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

76.80GB/s

Render Config

6

Compute Units

14

-

384

Shading Units

896

24

TMUs

56

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

7.760 GPixel/s

Pixel Rate

17.60 GPixel/s

23.28 GTexel/s

Texture Rate

61.60 GTexel/s

745.0 GFLOPS

FP16 (half)

-

745.0 GFLOPS

FP32 (float)

1.971 TFLOPS

46.56 GFLOPS

FP64 (double)

123.2 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Meso

GPU Name

Strato

Meso LE (216-0864046)

GPU Variant

Strato XT

GCN 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

2.08 billion

125 mm²

Die Size

160 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.2.170

-

6.5

Shader Model

6.5

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