AMD Radeon HD 8860 OEM vs ATI Radeon HD 3870 Mac Edition

VS

AMD Radeon HD 8860 OEM

ATI Radeon HD 3870 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8860 OEM and 512MB VRAM Radeon HD 3870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8860 OEM 's Advantages

Released 4 years and 7 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (179.2GB/s vs 72.06GB/s)

960 additional rendering cores

ATI Radeon HD 3870 Mac Edition 's Advantages

Lower TDP (106W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 8860 OEM +376%

2.368 TFLOPS

Radeon HD 3870 Mac Edition

0.497 TFLOPS

Radeon HD 8860 OEM

VS

Radeon HD 3870 Mac Edition

Graphics Card

Jan 2013

Release Date

Jun 2008

Sea Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1400 MHz

Memory Clock

1126 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

72.06GB/s

Render Config

20

Compute Units

4

-

1280

Shading Units

320

80

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

12.43 GPixel/s

74.00 GTexel/s

Texture Rate

12.43 GTexel/s

-

2.368 TFLOPS

FP32 (float)

497.3 GFLOPS

148.0 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

175W

TDP

106W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Curacao

GPU Name

RV670

Curacao PRO (215-0848000)

GPU Variant

RV670 XT (215-0708005)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.666 billion

212 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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