ATI Mobility Radeon HD 4850 X2 vs AMD Radeon HD 8670M

VS

ATI Mobility Radeon HD 4850 X2

AMD Radeon HD 8670M

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 4850 X2 and 1024MB VRAM Radeon HD 8670M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4850 X2 's Advantages

Larger VRAM bandwidth (89.60GB/s vs 14.40GB/s)

480 additional rendering cores

AMD Radeon HD 8670M 's Advantages

Released 4 years and 2 months late

Boost Clock975MHz

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4850 X2 +28%

0.8 TFLOPS

Radeon HD 8670M

0.624 TFLOPS

Mobility Radeon HD 4850 X2

VS

Radeon HD 8670M

Graphics Card

Jan 2009

Release Date

Mar 2013

M9x

Generation

Solar System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

700 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

89.60GB/s

Bandwidth

14.40GB/s

Render Config

10

Compute Units

5

-

800

Shading Units

320

40

TMUs

20

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

8.000 GPixel/s

Pixel Rate

7.800 GPixel/s

20.00 GTexel/s

Texture Rate

19.50 GTexel/s

-

800.0 GFLOPS

FP32 (float)

624.0 GFLOPS

160.0 GFLOPS

FP64 (double)

39.00 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

M98

GPU Name

Sun

M98 L2 (216-0732019)

GPU Variant

Sun S3 XT (216-0841009)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

0.69 billion

256 mm²

Die Size

56 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

4.1

Shader Model

6.5 (5.1)

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