AMD Radeon R9 M275 vs AMD Radeon R7 M340

VS

AMD Radeon R9 M275

AMD Radeon R7 M340

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M275 and 1024MB VRAM Radeon R7 M340 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M275 's Advantages

Boost Clock has increased by 29% (925MHz vs 715MHz)

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (64.00GB/s vs 16.00GB/s)

256 additional rendering cores

AMD Radeon R7 M340 's Advantages

Released 1 years and 11 months late

Score

Benchmark

FP32 (float)

Radeon R9 M275 +115%

1.184 TFLOPS

Radeon R7 M340

0.549 TFLOPS

Radeon R9 M275

VS

Radeon R7 M340

Graphics Card

Jan 2014

Release Date

Dec 2015

Gem System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

620 MHz

925 MHz

Boost Clock

715 MHz

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

16.00GB/s

Render Config

10

Compute Units

6

-

640

Shading Units

384

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

14.80 GPixel/s

Pixel Rate

5.720 GPixel/s

37.00 GTexel/s

Texture Rate

17.16 GTexel/s

-

1184 GFLOPS

FP32 (float)

549.1 GFLOPS

74.00 GFLOPS

FP64 (double)

34.32 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Venus

GPU Name

Opal

Venus XTX (216-0846033)

GPU Variant

Opal PRO

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

0.95 billion

123 mm²

Die Size

77 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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