4 Replies Latest reply on Mar 24, 2016 6:55 PM by techguy

    So about the fx-8800p...

    alobster111

      I was browsing dell's lineup of AMD inspirons and they had the fx-8800p advertised as an 8 core cpu. I noticed on AMD's website it is listed as a 4 core with 8 gpu cores. Having a 35w TDP and looking at the benchmarks it makes more sense that it is a 4 core. Could somebody clear this up? Thanks

        • Re: So about the fx-8800p...
          black_zion

          AMD FX-8800P Notebook Processor Specifications and Benchmarks - NotebookCheck.net Tech

          The AMD FX-8800P is the top-tier Carrizo APU of 2015 for mainstream laptops. It is a SoC containing two Excavator CPU modules (with 4 integer and 2 FP units counted as 4 compute cores), a Radeon R7 graphics card with 8 compute cores (512 shaders), a DDR3-2133 (35 Watt cTDP) memory controller and a video engine (including UVD 6 with hardware HEVC / H.265 decoding).

           

          The performances of the CPU and GPU cores depend on the configurable TDP. This cTDP can range from 12 to 35 Watts depending on the cooling solution and size of the laptop. Thus, clock speeds of the compute cores will vary. E.g., the GPU can score between 1992 points (15 Watts) to 2753 points (+38% with 35 Watts cTDP) in 3DMark 11 (P).

           

          According to AMD, the 35 Watt configuration scores 12% (Cinebench single-thread) and 15% (Cinebench Multi-threaded) higher compared to the previous Steamroller generation (most likely the AMD FX-7600P). If configured to 15 Watt instead, the gains are higher (40% to 55%) compared to the 19 Watt Kaveri FX-7500 APU.

            • Re: So about the fx-8800p...
              alobster111

              So it is incorrect for them to advertise it as an 8 core then right? All the other apus they have on on their site say the correct amount of cores.

                • Re: So about the fx-8800p...
                  black_zion

                  Yea, it only has 4 CPU cores.

                  • Re: So about the fx-8800p...
                    techguy

                    AMD changed to "compute cores" awhile back and as such lists the total cores used in their APUs. That being said AMD usually makes it very clear how many "compute cores" are in the CPU section and the rest are obviously in the GPU section. One thing to be aware of is that laptop makers using the latest Carrizo APUs have the ability to set whatever TDP they choose for the APU from a minimum of ~20W to the full25w or 35w max performance capability of the APU. So far many if not most laptop makers has castrated the Carrizo APUs to use a max TDP of ~20w so that battery life is longer. This however KILLS the APUs full performance and makes for very unhappy customers. Whatever you choose to buy, I'd suggest getting in writing from the PC maker a statement if the APU is being throttled to a reduced TDP or if it runs at the full TDP AMD allows it to. That way you have a legal means to return the PC without question if it is throttled and does not perform to your satisfaction.