AMD Radeon HD 7870M: GPU Specs & Benchmarks

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

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Benchmarks

PassMark G3D

1507

PassMark G2D

556

Graphics Processor (GPU)

GPU Name

Heathrow

Model number

Heathrow XT
(216-0835033)

Architecture

GCN 1.0

Foundry

TSMC

Process Size

28 nm

Transistors

1,500 million

Die Size

123 mm²

Graphics Card

Release Date

Apr 24th, 2012

Family

London
(HD 7800M)

Production

End-of-life

Predecessor

Vancouver

Bus Interface

PCIe 3.0 x16

Memory

Memory Size

2 GB

Memory Type

GDDR5

Memory Bus

128 bit

Bandwidth

64.00 GB/s

Performance

Pixel fillrate

12.80 GPixel/s

Texture fillrate

32.00 GTexel/s

FP32 (float) performance

1,024 GFLOPS

FP64 (double) performance

64.00 GFLOPS (1:16)

Clock Speeds

Memory Clock

1000 MHz
4 Gbps effective

GPU Clock

800 MHz

Render Config

Shading Units

640

TMUs

40

ROPs

16

Compute Units

10

L1 Cache

16 KB (per CU)

L2 Cache

256 KB

Board Design

Thermal design power (TDP)

45 W

Display Connectors

No outputs

API support

DirectX

12 (11_1)

OpenGL

4.6

OpenCL

1.2

Vulkan

1.2

Shader Model

5.1