AMD Radeon HD 8770M vs AMD Radeon HD 7690M Rebrand

VS

AMD Radeon HD 8770M

AMD Radeon HD 7690M Rebrand

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 1024MB VRAM Radeon HD 7690M Rebrand 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 Clock825MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 25.60GB/s)

AMD Radeon HD 7690M Rebrand 's Advantages

96 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M +9%

0.633 TFLOPS

Radeon HD 7690M Rebrand

0.576 TFLOPS

Radeon HD 8770M

VS

Radeon HD 7690M Rebrand

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

-

825 MHz

Boost Clock

-

1125 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

25.60GB/s

Render Config

6

Compute Units

6

-

384

Shading Units

480

24

TMUs

24

8

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

4.800 GPixel/s

19.80 GTexel/s

Texture Rate

14.40 GTexel/s

-

633.6 GFLOPS

FP32 (float)

576.0 GFLOPS

39.60 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

20W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

Whistler

Mars S3 XT (216-0842018)

GPU Variant

Whistler XT (216-0810001)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.716 billion

77 mm²

Die Size

104 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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