AMD Radeon HD 8970M vs AMD Radeon HD 7850M

VS

AMD Radeon HD 8970M

AMD Radeon HD 7850M

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 2GB VRAM Radeon HD 7850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

Released 1 years and 1 months late

Boost Clock900MHz

More VRAM (4GB vs 2GB)

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

640 additional rendering cores

AMD Radeon HD 7850M 's Advantages

Lower TDP (40W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8970M +166%

2.304 TFLOPS

Radeon HD 7850M

0.864 TFLOPS

Radeon HD 8970M

VS

Radeon HD 7850M

Graphics Card

May 2013

Release Date

Apr 2012

Solar System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

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

10.80 GPixel/s

72.00 GTexel/s

Texture Rate

27.00 GTexel/s

-

2.304 TFLOPS

FP32 (float)

864.0 GFLOPS

144.0 GFLOPS

FP64 (double)

54.00 GFLOPS

Board Design

100W

TDP

40W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Neptune

GPU Name

Heathrow

Neptune XT (216-0847000)

GPU Variant

Heathrow PRO

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

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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