AMD Radeon HD 8670M vs ATI Mobility Radeon HD 2600 XT Mac Edition

VS

AMD Radeon HD 8670M

ATI Mobility Radeon HD 2600 XT Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 256MB VRAM Mobility Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670M 's Advantages

Released 5 years and 8 months late

Boost Clock975MHz

More VRAM (1024GB vs 256GB)

200 additional rendering cores

ATI Mobility Radeon HD 2600 XT Mac Edition 's Advantages

Larger VRAM bandwidth (21.92GB/s vs 14.40GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 8670M +333%

0.624 TFLOPS

Mobility Radeon HD 2600 XT Mac Edition

0.144 TFLOPS

Radeon HD 8670M

VS

Mobility Radeon HD 2600 XT Mac Edition

Graphics Card

Mar 2013

Release Date

Jul 2007

Solar System

Generation

M7x

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-II

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

900 MHz

Memory Clock

685 MHz

Memory

1024MB

Memory Size

256MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

21.92GB/s

Render Config

5

Compute Units

3

-

320

Shading Units

120

20

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

64 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

2.400 GPixel/s

19.50 GTexel/s

Texture Rate

4.800 GTexel/s

-

624.0 GFLOPS

FP32 (float)

144.0 GFLOPS

39.00 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Sun

GPU Name

M76

Sun S3 XT (216-0841009)

GPU Variant

M76 XT-M (216XJBKA13FG)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

0.69 billion

Transistors

0.39 billion

56 mm²

Die Size

153 mm²

Graphics Features

12 (11_1)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

N/A

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

4.0

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