AMD Radeon HD 6850 vs AMD Radeon HD 7770 GHz Edition

VS

AMD Radeon HD 6850

AMD Radeon HD 7770 GHz Edition

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

Main Differences

AMD Radeon HD 6850 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 72.00GB/s)

320 additional rendering cores

AMD Radeon HD 7770 GHz Edition 's Advantages

Released 1 years and 4 months late

Lower TDP (80W vs 127W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 +16%

1.488 TFLOPS

Radeon HD 7770 GHz Edition

1.28 TFLOPS

Radeon HD 6850

VS

Radeon HD 7770 GHz Edition

Graphics Card

Oct 2010

Release Date

Feb 2012

Northern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

72.00GB/s

Render Config

12

Compute Units

10

-

960

Shading Units

640

48

TMUs

40

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

16.00 GPixel/s

37.20 GTexel/s

Texture Rate

40.00 GTexel/s

-

1488 GFLOPS

FP32 (float)

1280 GFLOPS

-

FP64 (double)

80.00 GFLOPS

Board Design

127W

TDP

80W

300 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

Cape Verde

Barts PRO (215-0798006)

GPU Variant

Cape Verde XT

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

1.5 billion

255 mm²

Die Size

123 mm²

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

-

5.0

Shader Model

5.1

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