AMD Radeon HD 6770 vs AMD Radeon Sky 700

VS

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 6GB VRAM Radeon Sky 700 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 's Advantages

Lower TDP (108W vs 225W)

AMD Radeon Sky 700 's Advantages

Released 2 years and 2 months late

More VRAM (6GB vs 1GB)

Larger VRAM bandwidth (264.0GB/s vs 76.80GB/s)

992 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6770

1.36 TFLOPS

Radeon Sky 700 +137%

3.226 TFLOPS

Radeon HD 6770

VS

Radeon Sky 700

Graphics Card

Jan 2011

Release Date

Mar 2013

Northern Islands

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1200 MHz

Memory Clock

1375 MHz

Memory

1024MB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

76.80GB/s

Bandwidth

264.0GB/s

Render Config

-

SM Count

-

10

Compute Units

28

800

Shading Units

1792

40

TMUs

112

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

Theoretical Performance

13.60 GPixel/s

Pixel Rate

28.80 GPixel/s

34.00 GTexel/s

Texture Rate

100.8 GTexel/s

-

FP16 (half)

-

1360 GFLOPS

FP32 (float)

3.226 TFLOPS

-

FP64 (double)

806.4 GFLOPS

Graphics Processor

Juniper

GPU Name

Tahiti

Juniper XT (215-0754013)

GPU Variant

Tahiti PRO GL

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

4.313 billion

166 mm²

Die Size

352 mm²

Board Design

108W

TDP

225W

300 W

Suggested PSU

550 W

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

Outputs

1x DisplayPort 1.2

1x 6-pin

Power Connectors

1x 8-pin

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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