AMD Phenom X4 805 and 810

[Sergio 1]

I am confused between the processor AMD Phenom X4 805 and 810. I am just knowing some basic things about these processors and now I want to choose one of them. The Phenom X4 Model 810 with 2.6 GHz and operate it for both a new motherboard with DDR3 memory as well as on our reference board based on the 790GX with DDR2 SDRAM. There, the processor must be at 2.6 GHz with those of us in the last test at 2.6 GHz down-clocked Phenom X4 940 and the old Phenom X4 9950 with exactly this clock must be defeated but that measure. On the DDR2 platform, all the models struggle with the same memory, so you can the effects of the reduction of the L3 cache model 810 a closer look. The Phenom X4 810 is in fact the first model based on the Deneb core, which has a reduced from 6 to 4 MB L3 cache. Any more information regarding this would be very helpful. Also feel free to post suggestions.

[Arumugan]

In the four-core processors for Socket AM3 first three models are launched. The Phenom X4 910 with 2.6 GHz and the known 6 MB L3 cache, sent into the race (on the Model 925 with 2.8 GHz, we have to this day waiting for, this is at a later date with even faster processors presented). Because the two models are among more interesting - and will be presented today. Phenom X4 810 and 805 have a reduced from 6 to 4 MB of L3 cache and clocked at 2.6 GHz, 2.5 GHz, respectively. The Model 810 will compete with a price of $ 175 directly against the Intel Core 2 Quad Q8200, which on paper with about 170 U.S. dollar is slightly cheaper, but has only 2.33 GHz. In the trade, it will probably mean a battle at a price below 150 Euro. The move puts the Phenom X4 810 and indirectly in the footsteps of the old and now Core 2 Quad Q6600 set, the pioneer in the quad-core market with affordable prices. We focus on the cheap quad-core Phenom X4 processors 810 and its smaller offshoot 805th Both share the first time at only 4 MB of L3 cache, what exactly a "leftovers" can be considered. The processors that do not make it to the highest class, because a part of the cache to be defective in this form still sent to the market. Do the processors not the error-free 6 MB of L3 cache, as they are needed for the 900 series, they are in the class settled among them - provided that four megabytes are available. If the L3 cache intact, a key play but not so with as it should, the models are sold as a three-core processors in the 700 series. Later in the year it is from both the quad and the triple-core processors to give variants completely without L3 cache.

[Maadhav]

The Stepping "C2" on the 800-series is exactly the same as in all previous 45-nm processors from AMD, the L2 cache is identical with 4 x 512 KB. The fact that AMD AM3 processors in the HyperTransport link something begins, was also awaits. With an increase of 1.8 to 2 GHz - or 3.6 to 4.0 GT / s - it remained short of the expectations that up to 2.2 GHz (4.4 GT / s) had promised to himself. Another point that becomes immediately apparent is the slight reduction in tension. While the first two Phenom X4 still with a voltage of 1.35 volts and therefore worked fell in the TDP rating of 125 watts, AMD processors are the 800 series only 1.3 volts for the journey. This goes together with the reduced frequency is sufficient to bring the new quad-core processors with a TDP of 95 watts on the market. The most important innovation for the Socket AM3 CPUs support DDR3 memory. At the latest board M4A79T Deluxe from Asus that supports a maximum of 1,600 MHz, while AMD has only officially released until 1333. This keeps us did not hinge on finding out what is the difference. Parallel to put the new AM3 Phenom is also a socket AM2 motherboard and run it exactly the same memory that was already in the previous Athlon used.

[Osman84]

Also take another look at the difference of a brand new motherboards with AMD's 790FX chipset, in contrast to our reference model with the 790GX. This is also necessary, as are published for the reference board various BIOS updates. Therefore we have decided to take on the Phenom X4 940 in both standard clock of 3.0 GHz and 2.6 additional values on the Asus M4A79 Deluxe. The Phenom X4 810 then passes with its 2.6 GHz exactly on the same board, in addition, it is investigated on the T-model with DDR3 memory. Before push comes, a few lines to the new socket. All five processors share here is the first AMD AM3 CPUs on the base. At first glance, it looks like the Socket AM2 + - but appearances are deceptive. Two of the four holes in the base have been shifted by just one pin, which means that an existing AM2 processor is not in the socket AM3, without having to bend or even break off two pins. Turned the system works, however, since AMD has removed the socket AM3 CPUs in two places not just two but three pins. Exactly why match the five AM3 processors - and the many other models will follow later this year, easily into the existing socket AM2. Made possible by this backward compatibility, an integrated memory controller that is done both with new DDR3 memory and each type of DDR2 SDRAM.

[Kalanidhi]

Had our existing test system to the well-deserved retirement sent, including AMD, the new test system will also benefit. Both have seen in the last year a total of 36 processors, 21 of them from Intel, 15 of AMD. Since there have been over the months in which we undergo such a test system does not change, many changes in the market, it was not only given the new processor generation time for a change. Of course, an entire generation provides for the replacement of the entire system to always best, so we postponed the plans from the former early summer to autumn. We have resorted to many suggestions from readers, we have received in recent months. At this point we want to make again some explanations of the new test system and explain why we have chosen for these components. One of the largest and most often attached to criticism was certainly the older Antec PSU with 480 watts. This is sent in a well-earned retirement and replaced with a brand new power supply from Cooler Master. The UCP series is the beginning of the summer of 2008 as the first desktop power supplies a "80plus Silver certification, get one . This represents an efficiency of 89 percent at a very high occupancy rate of 50 percent, but even under low load (20%) and full load (100%) may also act on UCP Power Supply with 87 respectively 85 percent more than see. For our test, we use the smallest version with 700 watts, as stronger power supplies fall, especially under light load efficiency in some cases significantly. If the 20 percent threshold in the 700-watt subjects at 140 watts, it is screwed up at the 1,100-watt model is already at 220 watts - a value with the new test system for smaller processors, not even under full load prime achieved.

[Umberto-Micro]

The second important point is the new graphics card. After we complete last year not just low-power ATI Radeon HD 2900 XT in action had it, we rely on Nvidia's first (relatively low-power) 55-nm solution for high-end segment, the GeForce 9800 GTX + . In particular, the significantly lower absorption line, even from competitors in the form of the ATI HD 4850 and the consistently faster performance were important reasons for the selection. All other eligible models (HD 4870, GTX 260, GTX 280) certainly provide a higher performance, but only at disproportionate increase in power consumption. To meet the new triple channel RAM just to be on the software side was almost imperative of transitioning to Windows Vista 64-bit version. Even this step we took the new test system, so that henceforth, the three slots on the X58 boards with two gigabytes are equipped - all the other Intel boards rely on the dual-channel mode on two of these modules.

[Appaji]

To meet the new triple channel RAM just to be on the software side was almost imperative of transitioning to Windows Vista 64-bit version. Even this step we took the new test system, so that henceforth, the three slots on the X58 boards with two gigabytes are equipped - all the other Intel boards rely on the dual-channel mode on two of these modules.

The difference of 4 to 6 GB of course on paper there is, in benchmarks but not realizing quasi. We also believe that such situations are likely to be in the near future, the most common variants or in the form of DDR2 memory with the old-established Core 2 Duo and Core 2 Quad already are. Therefore, all (older) AMD processors also come with a potent DDR2 memory, therefore, the maximum 1,066 MHz makes. Since so far only the Phenom and Athlon benefit from this memory, the older models work with a lower clock, but with better timing. For Socket AM3 us is parallel to a circuit board from Asus is available, which is based on the 790FX and the SB750. Furthermore, it is also a quasi-identical spin for the socket AM2, which is logical to DDR2. To provide a fair and realistic comparison between the counterparties, all tests in a closed mid-tower with factory-fan assembly (one fan at the back inlet, one at the hard drive cage in front blowing) carried out in order to call attention to thermal problems in the cars.

[Kaufman]

In addition to the newly designed from the ground test system, we have also carried the benchmark course an update. Still, some theoretical tests of the party, as they usually are one step further than any real application. There are new features that have found a place in processors, first tested in their performance. Since these theoretical tests use the user on the PC but not much, we are also many practical applications for help. These are now the main variety of multimedia applications, but also everyday things like packaging of files. Rounding out the test a few games where we were looking for a selection of games with built-in benchmark capability, and play out, which means Fraps not only the average frames per second, but the minima and maxima were determined. As is customary in the past, each benchmark is performed five times to meet with any outliers in performance can. This happens in almost all applications, unfortunately, more often than expected, both the negative and the positive direction. The average of the five tests (excluding extreme outliers) is then transferred to the individual diagrams. In games will make use of the resolution of 1,280 x 1,024 pixels, since at higher resolutions almost only the graphics card plays a role in lower resolutions but have no relation to reality. In general, we test it, if not further described, with the highest detail. The values of AA / AF can vary from game to game, however, the different setups are a small simulation of what may now change with each new game. All tested processors have to prove with the graphics card these tests that they can cope well with a few quality-enhancing features as well as a maximum.