AMD Radeon HD 6850M vs AMD Radeon HD 7770M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6850M and 1024MB VRAM Radeon HD 7770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850M 's Advantages

288 additional rendering cores

AMD Radeon HD 7770M 's Advantages

Released 1 years and 3 months late

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

Lower TDP (32W vs 50W)

Score

Benchmark

FP32 (float)

Radeon HD 6850M +56%

1.08 TFLOPS

Radeon HD 7770M

0.691 TFLOPS

Radeon HD 6850M

VS

Radeon HD 7770M

Graphics Card

Jan 2011

Release Date

Apr 2012

Vancouver

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

800 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

10

Compute Units

8

800

Shading Units

512

40

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

10.80 GPixel/s

Pixel Rate

10.80 GPixel/s

27.00 GTexel/s

Texture Rate

21.60 GTexel/s

-

FP16 (half)

-

1080 GFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Graphics Processor

Granville

GPU Name

Chelsea

Granville PRO

GPU Variant

Chelsea XT

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

1.5 billion

166 mm²

Die Size

123 mm²

Board Design

50W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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