AMD Radeon HD 7970 Launch Review

Product: AMD Radeon HD 7970 Video Card
Company: AMD
Author: James Prior
Editor: Charles Oliver
Date: December 24th, 2011

Test System & GPU Comparison

Performance Testing

We selected our Sapphire P67 Pure Black equipped test system for this investigation, using Intel's second generation Core i7 2600K processor:

Test Platform

Component Specification
Mainboard ASUS P8P67 WS Revolution
Processor Core i7 2600K @ 4.5GHz
Graphics Card AMD Radeon HD 7970 3GB
  NVIDIA GeForce GTX 580
  AMD Radeon HD 6990 [OC BIOS]
  AMD Radeon HD 6970 2GB
  AMD Radeon HD 5870 2GB Eyefinity 6
  AMD Radeon HD 5970 2x1GB
Memory 2x4GB Crucial DDR3-1333 @ DDR3-1600 9-9-9-25 2T
Audio Realtek ALC892
PSU Corsair HX850
Case CoolerMaster HAF X
Storage OCZ Vertex 2 200GB + Western Digital Caviar Blue 750GB
Heatsink/Fan Noctua NH-D14
Display Dell P2210H
Operating System Windows 7 64-bit Ultimate SP1
Driver Catalyst 8.921.2-111219a
  Forceware 285 WHQL

The graphics cards tested today:

  HD 7970 GTX 580 HD 6990 HD 6970 HD 5970 HD 5870
GPU Core 28nm Tahiti XT 40nm GF110 2x40nm Cayman XT 40nm Cayman XT 2x40nm Cypress XT 40nm Cypress XT
Engine Clock 925MHz 772MHz 880MHz 880MHz 725MHz 850MHz
Cores (Radeon/CUDA) 2048 512 2x1536 1536 2x1600 1600
Texture Units 128 48 2x96 96 2x80 80
ROP's 32 64 2x32 32 2x32 32
Memory Capacity 3GB 1.5GB 2x2GB 2GB 2x1GB 2GB
Memory Bus 384-bit 384-bit 2x256-bit 256-bit 2x256-bit 256-bit
Memory Speed 1375MHz / 5.5Gbps 1GHz / 4Gbps 2x1375MHz / 5.5Gbps 1375MHz / 5.5Gbps 1GHz / 4Gbps 1200MHz / 4.8Gbps
TDP 250W 244W 450W 250W 300W 225W
Multi-Display Eyefinity 4 Dual DVI/DVI+HDMI Eyefinity 5 Eyefinity 4 Eyefinity 3 Eyefinity 6
SEP ($USD) 549 499 739 369 629 499

3DMark 11 - To set a base line for performance expectations we ran 3DMark 11 Performance and Xtreme tests.