AMD Radeon R7 M340 vs AMD Radeon Pro 455

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R7 M340 and 2GB VRAM Radeon Pro 455 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 M340 's Advantages

Boost Clock715MHz

AMD Radeon Pro 455 's Advantages

Released 10 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (81.28GB/s vs 16.00GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 M340

0.549 TFLOPS

Radeon Pro 455 +139%

1.313 TFLOPS

Radeon R7 M340

VS

Radeon Pro 455

Graphics Card

Dec 2015

Release Date

Oct 2016

Gem System

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

620 MHz

Base Clock

-

715 MHz

Boost Clock

-

1000 MHz

Memory Clock

1270 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

81.28GB/s

Render Config

-

SM Count

-

6

Compute Units

12

384

Shading Units

768

24

TMUs

48

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

Theoretical Performance

5.720 GPixel/s

Pixel Rate

13.68 GPixel/s

17.16 GTexel/s

Texture Rate

41.04 GTexel/s

-

FP16 (half)

1313 GFLOPS

549.1 GFLOPS

FP32 (float)

1313 GFLOPS

34.32 GFLOPS

FP64 (double)

82.08 GFLOPS

Graphics Processor

Opal

GPU Name

Baffin

Opal PRO

GPU Variant

Baffin PRO

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

0.95 billion

Transistors

3 billion

77 mm²

Die Size

123 mm²

Board Design

Unknown

TDP

35W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1

1.2.170

Vulkan

1.2

-

CUDA

-

6.5 (5.1)

Shader Model

6.4

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