AMD Radeon R5 M315 vs AMD Radeon RX 640 Mobile

VS

AMD Radeon R5 M315

AMD Radeon RX 640 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M315 and 2GB VRAM Radeon RX 640 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 640 Mobile 's Advantages

Released 4 years late

Boost Clock1218MHz

Larger VRAM bandwidth (48.00GB/s vs 14.40GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M315

0.745 TFLOPS

Radeon RX 640 Mobile +109%

1.559 TFLOPS

Radeon R5 M315

VS

Radeon RX 640 Mobile

Graphics Card

May 2015

Release Date

May 2019

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1082 MHz

-

Boost Clock

1218 MHz

900 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

14.40GB/s

Bandwidth

48.00GB/s

Render Config

6

Compute Units

10

-

384

Shading Units

640

24

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

7.760 GPixel/s

Pixel Rate

19.49 GPixel/s

23.28 GTexel/s

Texture Rate

48.72 GTexel/s

745.0 GFLOPS

FP16 (half)

1.559 TFLOPS

745.0 GFLOPS

FP32 (float)

1.559 TFLOPS

46.56 GFLOPS

FP64 (double)

97.44 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Meso

GPU Name

Polaris 23

Meso LE (216-0864046)

GPU Variant

Polaris 23 XT

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.55 billion

Transistors

2.2 billion

125 mm²

Die Size

103 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

-

6.5

Shader Model

6.4

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