AMD Radeon HD 7870 GHz Edition: GPU Specs & Benchmarks

The Radeon HD 7870 GHz Edition is a graphics card by AMD, built on the 28 nm process and based on the Pitcairn graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

Pitcairn

Model number

Pitcairn XT
(215-0828047)

Architecture

GCN 1.0

Foundry

TSMC

Process Size

28 nm

Transistors

2,800 million

Die Size

212 mm²

Graphics Card

Release Date

Mar 5th, 2012

Family

Southern Islands
(HD 7800)

Production

End-of-life

Launch Price

349 USD

Predecessor

Northern Islands

Bus Interface

PCIe 3.0 x16

Memory

Memory Size

2 GB

Memory Type

GDDR5

Memory Bus

256 bit

Bandwidth

153.6 GB/s

Performance

Pixel fillrate

32.00 GPixel/s

Texture fillrate

80.00 GTexel/s

FP32 (float) performance

2.560 TFLOPS

FP64 (double) performance

160.0 GFLOPS (1:16)

Clock Speeds

Memory Clock

1200 MHz
4.8 Gbps effective

GPU Clock

1000 MHz

Render Config

Shading Units

1280

TMUs

80

ROPs

32

Compute Units

20

L1 Cache

16 KB (per CU)

L2 Cache

512 KB

Board Design

Slot Width

Dual-slot

Length

241 mm
9.5 inches

Thermal design power (TDP)

175 W

Suggested PSU

450 W

Display Connectors

1x DVI
1x HDMI
2x mini-DisplayPort

Power Connectors

2x 6-pin

Board Number

C401-47

API support

DirectX

12 (11_1)

OpenGL

4.6

OpenCL

1.2

Vulkan

1.2

Shader Model

5.1