2 Replies Latest reply on Nov 4, 2017 12:20 PM by systembuilder

    A10 7850k Crossfire Options

    systembuilder

      3 years since the release of the A10 7850 Kaveri, we have a number of different cards in the R7 x50 niche...

       

      R7 240

      R7 250

      R7 250E

      R7 250X

      R7 255

      R7 350

      R7 350X

      R7 450

       

      Which are good for Hybrid Crossfire and which ones aren't? It seems that any of them might qualify, but some are Orland and some are Cape Verde. Some Orlands have DDR5 like the Cape Verde... and the Cape Verde's have DDR5 and the same number of shaders as Spectre integrated R7! So do all of them qualify, only some, or is it an experiment and see thing?

        • Re: A10 7850k Crossfire Options
          ray_m

          Quite honestly, you'd get a much better bang for your buck by forgetting Crossfire and going for a discrete RX400 or RX500 series GPU.

           

          You will see a small improvement in performance when adding any of the cards to run in Crossfire mode with the APU.

          • Re: A10 7850k Crossfire Options
            systembuilder

            That's understood. Nontheless, the Hybrid Crossfire feature is available and while technically obsolete, Ebay offers a multitude of retail and OEM Oland series GPU's which can give a noticeable pickup for light stuff such as Xbox Live games for less than $50, especially if you get into used cards. RX 460's start at $120, and older R9 270's still sit at $80. Maybe Hybrid Crossfire is more viable now with Windows 10's optimizations. Everyone with an APU noticed a serious pickup with the newer version of Windows last year. From what I do know, Oland GPU's seem to be the requirement. However, the multitude of Oland variant would suggest some cards are better than others for different reasons. I've tried to compile here a listing of cards which would seem to qualify for Hybrid Crossfire, with some being far better than others. Snagged these from Wikipedia...

             

            Radeon
            HD 8570
            (Oland)
            January 8, 2013GCN 1st gen
            (28 nm)
            1040×106
            90 mm2
            384:24:87306.419.256035DDR3
            GDDR5
            128
            2048900
            1150
            28.8
            72
            12
            66
            PCIe 3.0 ×8
            Radeon
            HD 8670
            (Oland)
            January 8, 2013100082476848GDDR5
            128
            204811507216
            8
            Radeon
            R5 240[19]
            (Oland)
            November 1, 2013[24]GCN 1st gen
            (28 nm)
            1040×106
            90 mm2
            320:20:8730
            780
            5.8414.6467.2
            499.2
            29.2DDR3
            GDDR5
            128
            1024
            2048
            1800
            ?
            28.8
            ?
            50PCIe 3.0 ×8OEM
            Radeon
            R7 240[25]
            (Oland Pro)
            August 8, 2013320:20:8730
            780
            5.8414.6467.2
            499.2
            29.2DDR3
            GDDR5
            128
            20481800
            4500
            28.8
            72
            30$69
            Radeon
            R7 250[25]
            (Oland XT)
            August 8, 2013384:24:81000
            (1050)
            824768
            806.4
            48DDR3
            GDDR5
            128
            1024
            2048
            1800
            4600
            73.675$89
            Radeon
            R5 330
            (Oland Pro)
            May 6, 2015GCN 1st gen
            (28 nm)
            1040×106
            90 mm2
            320:20:8Unknown
            855

            6.84

            17.1

            547.2

            34.2
            DDR3
            128
            1024
            2048
            180028.830PCIe 3.0 ×16OEM
            Radeon
            R5 340
            (Oland XT)
            May 6, 2015384:24:8Unknown
            825

            6.6

            19.8

            633.6

            39.6
            DDR3
            GDDR5
            128
            1024
            2048
            1800
            4500
            7275OEM
            Radeon
            R7 340
            (Oland XT)
            May 6, 2015384:24:8730
            780

            5.8

            17.5
            560.6
            599
            35DDR3
            GDDR5
            128
            1024
            2048
            4096
            1800
            4500
            7275OEM
            Radeon
            R7 350
            (Oland XT)
            May 6, 2015384:24:81000
            1050
            824768
            806.4
            48DDR3
            GDDR5
            128
            1024
            2048
            1800
            4500
            7275OEM
            Radeon
            R5 430[23][24]
            (Oland Pro)
            June 30, 2016GCN 1st gen
            (28 nm)
            1040×106
            90 mm2
            384:24:8730
            780
            17.52
            18.72
            5.84
            6.24
            560
            599
            37.4DDR3
            GDDR5
            128
            1
            2
            1800
            4500
            28.8
            72
            50PCIe 3.0 ×8OEM
            Radeon
            R5 435[23][25]
            (Oland)
            June 30, 2016320:20:8103020.68.2465941.2DDR3
            64
            220001650OEM
            Radeon
            R7 430[26][27]
            (Oland Pro)
            June 30, 2016384:24:8730
            780
            17.52
            18.72
            5.84
            6.24
            560
            599
            37.4DDR3
            GDDR5
            128
            1
            2
            4
            1800
            4500
            28.8
            72
            50OEM
            Radeon
            R7 435[26][28]
            (Oland)
            June 30, 2016320:20:892018.47.3658936.8DDR3
            64
            220001650OEM

             

            What I'm getting at though is that OEM availability has released more cards that can be used for Hybrid Crossfire. Is it a good assumption that Kaveri will treat Oland as Oland no matter what number it is (making R7 350, R7 430, and HD 8670 viable contenders as well)? Some interesting things here include a 4GB R7 340.