Thus, here is the list of tested video card: Video card are located on the charts bellow in ascending order according to their recommended cost. S.T.A.L.K.E.R.: Clear sky(Direct 3d 10) : game version 1.004, improved complete illumination DX10, anisotropic filtration x16 and other maximum quality setting . Memory in this case functioned at 1006 MHz frequency, with the lowered taming 5-4- 4-12 (Performance level = 7) with 2.25 v.Īll tests were executed in the operating system Windows vista ultimate edition x86 SP1. In this test we overclocked this four core processor to 4.03 GHz with 1.575 v: Power unit: Enermax galaxy DXX (EGA1000EWL) 1000 watts.SATA- II 300 GB, Western digital velociRaptor, 10 000 RP/min, 16 Mb, NCQ.Cooling system CPU: Thermalright IFX-14 (Scythe ultra kaze (DFS123812L-2000), ~1240 RP/min).Processor: Intel core 2 Extreme QX9650, 3.0 GHz, 1.25 v, L2 2 x 6 Mb, FSB: 333 MHz x 4, (Yorkfield, C0).Motherboard : DFI LANPARTY DK X48-T2RS (Intel x48), LGA 775, Bios.The functions of energy-economy in CrossFire regime using 2xHD4870X2 is even more effective than CrossFireX two Radeon HD 4870.ġ. The second note is the equality of energy consumption between the two Radeon HD 4870 and two Radeon HD 4870 X2 2d- regime. After a Simple mathematical calculations (2xHD4870X2 - 1x HD4870X2) we get the energy consumption of 320 Watts!!!, which do not correspond to the declared in the video card specifications 286 watts. The peak energy consumption Of CrossFireX radeon HD 4870 X2 proved to be a little less than 800 watts!!!. Measurement was in 2d and also in 3d- regime (benchmark firefly forest from the synthetic test 3DMark 2006 X 1200 with 8xAA and 16xAF ). Let us verify the video card energy consumption. GPU- Z utility reflected correctly information\'s about the pair radeon HD 4870 X2:īut here using two Radeon HD 4870 there was some errors : ![]() The third motherboard - DFI LANPARTY DK X48-T2RS (Intel x48, 16x + 16x) without any difficulties and hitches organized both CrossFireX configuration. Gigabyte GA- X 38- DQ6 (Intel x38, 16x + 16x) also proved to be incapable to work correctly with the pair of video card radeon HD 4870, since video cards always functioned in the regime PCI- E 1x. We do not succeed in running CrossFireX using Radeon HD 4870 and Radeon HD 4870 X2. We verified the work Of CrossFireX on ASUS P5K deluxe and the result was a pure failure. For example, Enermax galaxy DXX (EGA1000EWL) with 1000 watts peak power, when powering a CrossFireX radeon HD 4870 X2, made a high noise even higher that both video card cooler.įirst let us say some words about the motherboard support . So we deal perhaps with the maximum among existing graphical solutions power. Today we will check the performance of immediately two Radeon HD 4870 X2 in CrossFireX regime and also 2XHD 4870 .įor successful CrossFireX work using two Radeon HD 4870 X2 besides the motherboard with support to two valuable slots PCI- E (16X + 16X) it is necessary to use a power unit with 850 watts or more with two six and two 8 pins power connectors :Īccording to specifications, the peak consumption of two Radeon HD 4870 X2 can be only 286 X 2 = 572 watts. Last week we reviewed the video card HIS radeon HD 4870 X2 2x1 GB and checked its performance against other graphical solutions, including the Radeon HD 4870.
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