AMD Radeon HD 8770M vs AMD Radeon HD 7730M

VS

AMD Radeon HD 8770M

AMD Radeon HD 7730M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 2GB VRAM Radeon HD 7730M 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 late

Boost Clock has increased by 22% (825MHz vs 675MHz)

Larger VRAM bandwidth (72.00GB/s vs 28.80GB/s)

AMD Radeon HD 7730M 's Advantages

128 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M

0.633 TFLOPS

Radeon HD 7730M +9%

0.691 TFLOPS

Radeon HD 8770M

VS

Radeon HD 7730M

Graphics Card

Apr 2013

Release Date

Apr 2012

Solar System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

775 MHz

Base Clock

575 MHz

825 MHz

Boost Clock

675 MHz

1125 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

28.80GB/s

Render Config

6

Compute Units

8

-

384

Shading Units

512

24

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

10.80 GPixel/s

19.80 GTexel/s

Texture Rate

21.60 GTexel/s

-

633.6 GFLOPS

FP32 (float)

691.2 GFLOPS

39.60 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

Unknown

TDP

25W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

Chelsea

Mars S3 XT (216-0842018)

GPU Variant

Chelsea LE (216-0834065)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.5 billion

77 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

5.1

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