AMD Radeon HD 7870M vs AMD Radeon HD 6330M

VS

AMD Radeon HD 7870M

AMD Radeon HD 6330M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7870M and 1024MB VRAM Radeon HD 6330M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870M 's Advantages

Released 1 years and 5 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (64.00GB/s vs 12.80GB/s)

560 additional rendering cores

AMD Radeon HD 6330M 's Advantages

Lower TDP (7W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 7870M +1180%

1.024 TFLOPS

Radeon HD 6330M

0.08 TFLOPS

Radeon HD 7870M

VS

Radeon HD 6330M

Graphics Card

Apr 2012

Release Date

Nov 2010

London

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

12.80GB/s

Render Config

10

Compute Units

2

-

640

Shading Units

80

40

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

2.000 GPixel/s

32.00 GTexel/s

Texture Rate

4.000 GTexel/s

-

1024 GFLOPS

FP32 (float)

80.00 GFLOPS

64.00 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

7W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Heathrow

GPU Name

Robson

Heathrow XT (216-0835033)

GPU Variant

Robson LP

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.292 billion

123 mm²

Die Size

59 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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