GPU database reference

Verified catalog record

AMD Radeon HD 7970 GHz Edition

AMD · Southern Islands(HD 7900) · Radeon HD 7970 GHz Edition

AMD Radeon HD 7970 GHz Edition graphics reference with normalized architecture, compute, memory, clocks, PCIe, display, media, power, and physical specifications where verified data exists.

VRAM: 3 GB GDDR5
Boost clock: 1.05 GHz
PCI Express: PCIe 3.0 x16
Board power: 300 W

Technical data

Specifications

Only fields backed by the current normalized record are rendered; missing values stay absent rather than becoming N/A grids.

Overview

Manufacturer	AMD
Family	Southern Islands(HD 7900)
Launch date	2012-06-22

Architecture

Architecture	GCN 1.0
Generation	Southern Islands(HD 7900)
GPU / chip	Tahiti
Foundry	TSMC
Process	28 nm

Compute

Compute units	32 CUs
Shader processors	2048

Memory

VRAM	3 GB
Memory type	GDDR5
Memory bus	384 bit
Memory bandwidth	288.0 GB/s

Clocks

Base clock	1.0 GHz
Boost clock	1.05 GHz
Memory clock	1.50 GHz

PCIe

Bus interface	PCIe 3.0 x16

Display

Display outputs	1x DVI, 1x HDMI 1.4a, 2x mini-DisplayPort 1.2

Power

Board power	300 W
Suggested PSU	700 W
Power connectors	1x 6-pin + 1x 8-pin

Physical

Reference dimensions	275 mm × 38 mm × —
Slot width	Dual-slot

Hardware navigation

Bounded links selected from structured family, platform, generation, and architecture fields—not model-number proximity.

Sources

Specification provenance

No public source record is available.

Useful next steps selected from the same technical reference and publication system.

Technical guide

GPU VRAM Capacity Explained: Textures, Resolution, Ray Tracing, Memory Budgets, and Out-of-VRAM Behavior

Understand what GPU VRAM stores, how textures, render targets, resolution, ray tracing, residency budgets, and paging affect capacity pressure, and why VRAM size alone does not determine performance.

Technical guide

4K Gaming PC Build Guide: GPU, VRAM, CPU Balance, Upscaling, Power, Cooling, and Display Outputs

Plan a 4K gaming PC around the display and games first, then validate GPU class, VRAM, CPU balance, upscaling, power, cooling, case fit, and the full monitor connection path.

Tool

DDR Memory Latency Calculator

Convert DDR data rate and CAS latency cycles into CAS timing in nanoseconds.