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Review: Sapphire Radeon HD 7770 OC

by Parm Mann on 15 February 2012, 05:05 3.5

Tags: Sapphire, AMD (NYSE:AMD)

Quick Link: HEXUS.net/qabcmv

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Test methodology

Sapphire Radeon HD 7770 OC Specification


GPU comparisons

Graphics card Approx.
pricing
GPU clock
(MHz)
Stream
processors
Shader clock
(MHz)
Memory clock
(MHz)
Memory bus
(bits)
Graphics driver
  Sapphire Radeon HD 7770 OC (1,024MB) £140 1,150 640 1,150 5,000 128 Catalyst 12.1
  PowerColor Radeon HD 7770 (1,024MB) £125 1,000 640 1,000 4,500 128 Catalyst 12.1
  AMD Radeon HD 7750 (1,024MB) £90 800 512 800 4,500 128 Catalyst 12.1
  Sapphire Radeon HD 6870 (1,024MB) £130 900 1,120 900 4,200 256 Catalyst 11.12
  Sapphire Radeon HD 6850 (1,024MB) £110 775 960 775 4,000 256 Catalyst 11.12
  Sapphire Radeon HD 6790 (1,024MB) £100 840 800 840 4,200 128 Catalyst 11.12
  HIS Radeon HD 6770 (1,024MB) £80 850 800 850 4,800 128 Catalyst 11.12
  ASUS GeForce GTX 560 DirectCU (1,024MB) £130 810 336 1,420 4,004 256 ForceWare 295.51
  Gigabyte GeForce GTX 550 Ti OC (1,024MB) £100 970 192 1,940 4,200 192 ForceWare 295.51

Mainstream Test bench

CPU Intel Core i5 2500K (3.3GHz, 6MB L3 cache, quad-core, LGA1155)
Motherboard Intel DP67BG
Memory 8GB Corsair Vengeance (9-9-9-24-2T @ 1,600MHz)
Power Supply Corsair AX750
Monitor Dell 30in 3007WFP
Disk drive(s) Crucial RealSSD C300 (256GB)
Chassis Corsair Graphite Series 600T
Operating system Windows 7 SP1, 64-bit

Benchmarks

3DMark 11 Performance and Extreme presets
Aliens vs. Predator DX11, 1,280x720 and 1,920x1,080 resolutions, 2xAA, 8xAF, medium quality
Batman: Arkham City DX11, 1,280x720 and 1,920x1,080 resolutions, 4xAA, high quality
Battlefield 3 DX11, 1,280x720 and 1,920x1,080 resolutions, 0xMSAA, 16xAF, high quality
Crysis 2 DX11, 1,280x720 and 1,920x1,080 and resolutions, 0xAA, 16xAF, high quality
Just Cause 2 DX10, 1,280x720 and 1,920x1,080 resolutions, 4xAA, 16xAF, medium quality
Total War: Shogun 2 DX11, 1,280x720 and 1,920x1,080 resolutions, 4xAA, 8xAF, high quality
Power consumption To emulate real-world usage scenarios, we record mains power draw both when idle and whilst playing Total War: Shogun 2
Temperature To emulate real-world usage scenarios, we record GPU core temperature both when idle and whilst playing Total War: Shogun 2
Noise A PCE-318 noise level meter is placed at front of a Corsair 600T chassis with side panel on
Overclocking Pushing the graphics card as far as it will go, we increase speeds and re-run the Aliens vs. Predator benchmark
HEXUS bang4buck A custom metric used to evaluate comparative performance with price factored in