AMD Radeon E8860 vs AMD Radeon HD 6770M Mac Edition

VS

AMD Radeon E8860

AMD Radeon HD 6770M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon E8860 and 512MB VRAM Radeon HD 6770M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon E8860 's Advantages

Released 3 years late

Boost Clock625MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 57.60GB/s)

160 additional rendering cores

AMD Radeon HD 6770M Mac Edition 's Advantages

Lower TDP (35W vs 37W)

Score

Benchmark

FP32 (float)

Radeon E8860 +14%

0.8 TFLOPS

Radeon HD 6770M Mac Edition

0.696 TFLOPS

Radeon E8860

VS

Radeon HD 6770M Mac Edition

Graphics Card

Jan 2014

Release Date

Jan 2011

Embedded

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

575 MHz

Base Clock

-

625 MHz

Boost Clock

-

1125 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

57.60GB/s

Render Config

10

Compute Units

6

-

640

Shading Units

480

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.00 GPixel/s

Pixel Rate

5.800 GPixel/s

25.00 GTexel/s

Texture Rate

17.40 GTexel/s

-

800.0 GFLOPS

FP32 (float)

696.0 GFLOPS

50.00 GFLOPS

FP64 (double)

-

Board Design

37W

TDP

35W

-

1x VGA

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

Venus

GPU Name

Whistler

Venus MCM

GPU Variant

Whistler XT (216-0810001)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.716 billion

123 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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