AMD Radeon R7 M340 vs AMD Radeon HD 8870M

VS

AMD Radeon R7 M340

AMD Radeon HD 8870M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R7 M340 and 2GB VRAM Radeon HD 8870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 M340 's Advantages

Released 2 years and 8 months late

AMD Radeon HD 8870M 's Advantages

Boost Clock has increased by 8% (775MHz vs 715MHz)

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 16.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 M340

0.549 TFLOPS

Radeon HD 8870M +80%

0.992 TFLOPS

Radeon R7 M340

VS

Radeon HD 8870M

Graphics Card

Dec 2015

Release Date

Apr 2013

Gem System

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

620 MHz

Base Clock

725 MHz

715 MHz

Boost Clock

775 MHz

1000 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

72.00GB/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)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

5.720 GPixel/s

Pixel Rate

12.40 GPixel/s

17.16 GTexel/s

Texture Rate

31.00 GTexel/s

-

549.1 GFLOPS

FP32 (float)

992.0 GFLOPS

34.32 GFLOPS

FP64 (double)

62.00 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Opal

GPU Name

Venus

Opal PRO

GPU Variant

Venus XT (216-0846000)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.5 billion

77 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1 (1.2)

1.2.170

Vulkan

1.2.170

-

6.5 (5.1)

Shader Model

6.5 (5.1)

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