AMD Radeon HD 8770M vs AMD Radeon HD 8690M

VS

AMD Radeon HD 8770M

AMD Radeon HD 8690M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 2GB VRAM Radeon HD 8690M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770M 's Advantages

Larger VRAM bandwidth (72.00GB/s vs 32.00GB/s)

64 additional rendering cores

AMD Radeon HD 8690M 's Advantages

Boost Clock has increased by 18% (975MHz vs 825MHz)

Score

Benchmark

FP32 (float)

Radeon HD 8770M +1%

0.633 TFLOPS

Radeon HD 8690M

0.624 TFLOPS

Radeon HD 8770M

VS

Radeon HD 8690M

Graphics Card

Apr 2013

Release Date

Mar 2013

Solar System

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

775 MHz

Base Clock

925 MHz

825 MHz

Boost Clock

975 MHz

1125 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

32.00GB/s

Render Config

6

Compute Units

5

-

384

Shading Units

320

24

TMUs

20

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

7.800 GPixel/s

19.80 GTexel/s

Texture Rate

19.50 GTexel/s

-

633.6 GFLOPS

FP32 (float)

624.0 GFLOPS

39.60 GFLOPS

FP64 (double)

39.00 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Mars

GPU Name

Sun

Mars S3 XT (216-0842018)

GPU Variant

Sun S3 XT (216-0841009)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

0.69 billion

77 mm²

Die Size

56 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1 (1.2)

1.2.170

Vulkan

1.2.170

-

6.5 (5.1)

Shader Model

6.5 (5.1)

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