AMD Radeon HD 6870 vs ATI Radeon HD 5770 Mac Edition

VS

AMD Radeon HD 6870 ATI Radeon HD 5770 Mac Edition

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 1024MB VRAM Radeon HD 5770 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 76.48GB/s)

320 additional rendering cores

ATI Radeon HD 5770 Mac Edition 's Advantages

Lower TDP (108W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +48%

2.016 TFLOPS

Radeon HD 5770 Mac Edition

1.36 TFLOPS

Radeon HD 6870

VS

Radeon HD 5770 Mac Edition

Graphics Card

Oct 2010

Release Date

Jul 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

1195 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

76.48GB/s

Render Config

-

SM Count

-

14

Compute Units

10

1120

Shading Units

800

56

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

13.60 GPixel/s

50.40 GTexel/s

Texture Rate

34.00 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

1360 GFLOPS

-

FP64 (double)

-

Graphics Processor

Barts

GPU Name

Juniper

Barts XT (215-0798000)

GPU Variant

Juniper XT (215-0754013)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

1.04 billion

255 mm²

Die Size

166 mm²

Board Design

151W

TDP

108W

450 W

Suggested PSU

300 W

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

Outputs

1x DVI 1x DisplayPort 1.1

2x 6-pin

Power Connectors

1x 6-pin

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

5.0

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