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专项PK—HD5970对决HD5870
虽然Radeon HD 5970可以看做是由两个Radeon HD 5870构成，但是前者频率远低于后者，那么就两个产品而言在实际使用中性能会差多少呢？本环节将做专项PK对比。
| Radeon HD 5970 PK Radeon HD 5870 | |||
| Radeon HD 5950 | Radeon HD 5870 | HD5890领先HD5850幅度 | |
| 理 论 性 能 测 试 | |||
| 3Dmark 06 | |||
| 1280*1024 | 23485 | 21859 | 7.4% |
| 1920*1200 | 22878 | 20835 | 9.8% |
| 1920*1200 4x+16x | 21839 | 16791 | 30.1% |
| 2560*1600 | 21931 | 17922 | 22.4% |
| 2560*1600 4x+16x | 19119 | 13196 | 44.9% |
| 3Dmark Vantage | |||
| Performance | 21273 | 17097 | 24.4% |
| High | 15980 | 11842 | 34.9% |
| Extreme | 11828 | 8236 | 43.6% |
| DirectX 9 游 戏 性 能 测 试 | |||
| Left 4 Dead | |||
| 1920*1200 | 226.7 | 214.1 | 5.9% |
| 1920*1200 4x+16x | 220.8 | 170.8 | 29.3% |
| 2560*1600 | 198.1 | 148.5 | 33.4% |
| 2560*1600 4x+16x | 169.1 | 115.5 | 46.4% |
| Need for Speed:Shift | |||
| 1920*1200 | 133.6 | 101.9 | 31.1% |
| 1920*1200 4x+16x | 132.8 | 87.9 | 51.1% |
| 2560*1600 | 130.5 | 86.1 | 51.6% |
| 2560*1600 4x+16x | 128.8 | 64.1 | 100.9% |
| Street Fighter IV | |||
| 1920*1200 | 347.3 | 224.2 | 54.9% |
| 1920*1200 4x+16x | 223.1 | 140.7 | 58.6% |
| 2560*1600 | 320.9 | 204.3 | 58.6% |
| 2560*1600 4x+16x | 204.4 | 128.5 | 59.1% |
| DirectX 10 游 戏 性 能 测 试 | |||
| Company of Heroes | |||
| 1920*1200 | 172.5 | 137.4 | 25.5% |
| 1920*1200 4x+16x | 147.4 | 114.1 | 29.2% |
| 2560*1600 | 140.9 | 103.2 | 36.5% |
| 2560*1600 4x+16x | 109.1 | 80.1 | 36.2% |
| Crysis | |||
| 1920*1200 | 50.4 | 35.2 | 43.2% |
| 2560*1600 | 31.5 | 22.4 | 40.6% |
| Resident Evil 5 | |||
| 1920*1200 | 131.9 | 103.4 | 27.6% |
| 1920*1200 4x+16x | 126.9 | 98.8 | 28.4% |
| 2560*1600 | 106.4 | 75.5 | 40.9% |
| 2560*1600 4x+16x | 101.1 | 72.4 | 39.6% |
| DirectX 10.1 游 戏 性 能 测 试 | |||
| FarCry 2 | |||
| 1920*1200 | 133.3 | 85.2 | 56.5% |
| 1920*1200 4x+16x | 100.8 | 65.3 | 54.4% |
| 2560*1600 | 100.6 | 64.9 | 55.1% |
| 2560*1600 4x+16x | 70.1 | 46.5 | 50.8% |
| S.T.A.L.K.E.R.:Clearsky | |||
| 1920*1200 | 73.1 | 50.1 | 45.9% |
| 2560*1600 | 57.7 | 38.3 | 50.7% |
| Tom Clancy's H.A.W.X | |||
| 1920*1200 | 132 | 84 | 57.1% |
| 1920*1200 4x+16x | 73 | 46 | 58.7% |
| 2560*1600 | 105 | 67 | 56.7% |
| 2560*1600 4x+16x | 55 | 37 | 48.6% |
| DirectX 11 游 戏 性 能 测 试 | |||
| Heaven Benchmark | |||
| 1920*1200 | 58.3 | 37.2 | 56.7% |
| 2560*1600 | 42.2 | 26.8 | 57.5% |
| S.T.A.L.K.E.R.:Call of Prypiat | |||
| 1920*1200 | 97.1 | 66.7 | 45.6% |
| 2560*1600 | 67.9 | 44.8 | 51.6% |
| 功 耗 测 试 | |||
| 待机平均功耗 | 171 | 116 | -47.4% |
| 满载峰值功耗 | 404 | 311 | -29.9% |
通过整体对比来看，Radeon HD 5970整体平均领先Radeon HD 5870达50%左右，这符合同芯片交火模式比单卡性能提升规律。不过笔者认为在NVIDIA Fermi正式发布前，本环节两者的价格不会有较大波动，二者都仅适合资金充裕的发烧友。
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