AMD Radeon HD 7970: GPU Specs & Benchmarks

The Radeon HD 7970 is a graphics card by AMD, built on the 28 nm process and based on the Tahiti graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

Tahiti

Model number

Tahiti XT
(215-0821060)

Architecture

GCN 1.0

Foundry

TSMC

Process Size

28 nm

Transistors

4,313 million

Die Size

352 mm²

Graphics Card

Release Date

Dec 22nd, 2011

Family

Southern Islands
(HD 7900)

Production

End-of-life

Launch Price

549 USD

Availability

Jan 9th, 2012

Predecessor

Northern Islands

Bus Interface

PCIe 3.0 x16

Memory

Memory Size

3 GB

Memory Type

GDDR5

Memory Bus

384 bit

Bandwidth

264.0 GB/s

Performance

Pixel fillrate

29.60 GPixel/s

Texture fillrate

118.4 GTexel/s

FP32 (float) performance

3.789 TFLOPS

FP64 (double) performance

947.2 GFLOPS (1:4)

Clock Speeds

Memory Clock

1375 MHz
5.5 Gbps effective

GPU Clock

925 MHz

Render Config

Shading Units

2048

TMUs

128

ROPs

32

Compute Units

32

L1 Cache

16 KB (per CU)

L2 Cache

768 KB

Board Design

Slot Width

Dual-slot

Length

275 mm
10.8 inches

Width

111 mm
4.4 inches

Height

38 mm
1.5 inches

Thermal design power (TDP)

250 W

Suggested PSU

600 W

Display Connectors

1x DVI
1x HDMI
2x mini-DisplayPort

Power Connectors

1x 6-pin + 1x 8-pin

Board Number

C386-37

API support

DirectX

12 (11_1)

OpenGL

4.6

OpenCL

1.2

Vulkan

1.2

Shader Model

5.1