AMD Radeon HD 8770M vs ATI Mobility Radeon HD 3850 X2

VS

AMD Radeon HD 8770M

ATI Mobility Radeon HD 3850 X2

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 512MB VRAM Mobility Radeon HD 3850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770M 's Advantages

Released 4 years and 10 months late

Boost Clock825MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 48.00GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M +70%

0.633 TFLOPS

Mobility Radeon HD 3850 X2

0.371 TFLOPS

Radeon HD 8770M

VS

Mobility Radeon HD 3850 X2

Graphics Card

Apr 2013

Release Date

Jun 2008

Solar System

Generation

M8x

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

750 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

48.00GB/s

Render Config

6

Compute Units

4

-

384

Shading Units

320

24

TMUs

16

8

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

9.280 GPixel/s

19.80 GTexel/s

Texture Rate

9.280 GTexel/s

-

633.6 GFLOPS

FP32 (float)

371.2 GFLOPS

39.60 GFLOPS

FP64 (double)

74.24 GFLOPS

Board Design

Unknown

TDP

70W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

M88

Mars S3 XT (216-0842018)

GPU Variant

-

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

0.95 billion

Transistors

0.666 billion

77 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

N/A

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

4.1

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