AMD Radeon HD 7850M vs AMD Radeon HD 6830M

VS

AMD Radeon HD 7850M

AMD Radeon HD 6830M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7850M and 1024MB VRAM Radeon HD 6830M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850M 's Advantages

Released 1 years and 3 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (64.00GB/s vs 25.60GB/s)

AMD Radeon HD 6830M 's Advantages

160 additional rendering cores

Lower TDP (39W vs 40W)

Score

Benchmark

FP32 (float)

Radeon HD 7850M

0.864 TFLOPS

Radeon HD 6830M +6%

0.92 TFLOPS

Radeon HD 7850M

VS

Radeon HD 6830M

Graphics Card

Apr 2012

Release Date

Jan 2011

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

DDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

25.60GB/s

Render Config

10

Compute Units

10

-

640

Shading Units

800

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

9.200 GPixel/s

27.00 GTexel/s

Texture Rate

23.00 GTexel/s

-

864.0 GFLOPS

FP32 (float)

920.0 GFLOPS

54.00 GFLOPS

FP64 (double)

-

Board Design

40W

TDP

39W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Heathrow

GPU Name

Granville

Heathrow PRO

GPU Variant

Granville LP

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

1.04 billion

123 mm²

Die Size

166 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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