AMD Radeon HD 8970M vs AMD Radeon R9 M275

VS

AMD Radeon HD 8970M

AMD Radeon R9 M275

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 2GB VRAM Radeon R9 M275 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (153.6GB/s vs 64.00GB/s)

640 additional rendering cores

AMD Radeon R9 M275 's Advantages

Released 8 months late

Boost Clock has increased by 3% (925MHz vs 900MHz)

Score

Benchmark

FP32 (float)

Radeon HD 8970M +94%

2.304 TFLOPS

Radeon R9 M275

1.184 TFLOPS

Radeon HD 8970M

VS

Radeon R9 M275

Graphics Card

May 2013

Release Date

Jan 2014

Solar System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

900 MHz

Boost Clock

925 MHz

1200 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

64.00GB/s

Render Config

20

Compute Units

10

-

1280

Shading Units

640

80

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

14.80 GPixel/s

72.00 GTexel/s

Texture Rate

37.00 GTexel/s

-

2.304 TFLOPS

FP32 (float)

1184 GFLOPS

144.0 GFLOPS

FP64 (double)

74.00 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Neptune

GPU Name

Venus

Neptune XT (216-0847000)

GPU Variant

Venus XTX (216-0846033)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.5 billion

212 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

5.1

Shader Model

6.5 (5.1)

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