AMD Radeon HD 8770M vs AMD Radeon HD 7470M

VS

AMD Radeon HD 8770M

AMD Radeon HD 7470M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 1024MB VRAM Radeon HD 7470M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770M 's Advantages

Released 1 years and 3 months late

Boost Clock has increased by 3% (825MHz vs 800MHz)

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 14.40GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M +147%

0.633 TFLOPS

Radeon HD 7470M

0.256 TFLOPS

Radeon HD 8770M

VS

Radeon HD 7470M

Graphics Card

Apr 2013

Release Date

Jan 2012

Solar System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

775 MHz

Base Clock

750 MHz

825 MHz

Boost Clock

800 MHz

1125 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

14.40GB/s

Render Config

6

Compute Units

2

-

384

Shading Units

160

24

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

3.200 GPixel/s

19.80 GTexel/s

Texture Rate

6.400 GTexel/s

-

633.6 GFLOPS

FP32 (float)

256.0 GFLOPS

39.60 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

25W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

Seymour

Mars S3 XT (216-0842018)

GPU Variant

Seymour XT (216-0810084)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.37 billion

77 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

5.0

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