AMD Radeon HD 7970M vs AMD Radeon HD 8850M

VS

AMD Radeon HD 7970M

AMD Radeon HD 8850M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7970M and 2GB VRAM Radeon HD 8850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970M 's Advantages

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

640 additional rendering cores

AMD Radeon HD 8850M 's Advantages

Released 1 years late

Boost Clock625MHz

Score

Benchmark

FP32 (float)

Radeon HD 7970M +172%

2.176 TFLOPS

Radeon HD 8850M

0.8 TFLOPS

Radeon HD 7970M

VS

Radeon HD 8850M

Graphics Card

Apr 2012

Release Date

Apr 2013

London

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

575 MHz

-

Boost Clock

625 MHz

1200 MHz

Memory Clock

1000 MHz

Memory

2GB

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

27.20 GPixel/s

Pixel Rate

10.00 GPixel/s

68.00 GTexel/s

Texture Rate

25.00 GTexel/s

-

2.176 TFLOPS

FP32 (float)

800.0 GFLOPS

136.0 GFLOPS

FP64 (double)

50.00 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Wimbledon

GPU Name

Venus

Wimbledon XT (216-0836036)

GPU Variant

Venus PRO (216-0846009)

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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