X8 computing power of graphics card

1. 1. The PCI-E 3.0 bandwidth between the motherboard and CPU will affect the performance of the graphics card. Low bandwidth X4 / X8 can also be used At present, only 3.0 is enough, not 4.0)
2. The speed of rtx2080ti is far faster than p5000. In OC rendering, "game card of N card" is absolutely ahead of "professional card of the same price"
3. Public version ≠ professional card, professional card ≠ all design software majors (n-card professional card is also divided into Tesla, Quadro, etc.)
4. Combined with answer 1, if the budget is enough, priority should be given to those with more PCI-E channels (Xeon E5, Xeon W, Xeon gold / platinum, core i9, etc.). Amd Xiaolong, thread tearing)
* select the supreme version i9 or thread tearing, and the corresponding ATX motherboard itself supports 3 or 4-way graphics cards (x299, trx40)
* take Gigabyte x299-wu8 as an example: workstation motherboard supports 4-way SLI, and supports 4 (al slot cards) to run x16 / 16 / 16

2. 1. P4v800d-x adopts via's pt880 ultra chipset, which is similar to that in Intel 845GV & # 92; 865GV\ The false AGP (called AgI, low performance, equivalent to PCI) slot in 915gv. The difference is that AGP and pci6x (4x running) on pt880 ultra are from pt880 ultra north bridge chipset, not from PCI bus, so it is difficult to find the reason. Both AGP 8x and PCIe 4x of p4v800d-x are real and full speed

2. From the interface point of view, the data bandwidth of AGP 8x is 266 * 8 = 2133mb / s, and that of PCIe 4x is 250 * 4 * 2 = 2048MB / s, so there is little difference in the data bandwidth between the two. Therefore, suppose there are two AGP and PCIe graphics cards with the same performance and parameters, then on this motherboard, the gap between them should be very small

3. The problem is that AGP graphics card has been eliminated, most of which are second-hand procts. The price of the same type of AGP graphics card is higher than that of the PCIe graphics card. With the help of new core and new memory technology, the performance of the PCIe graphics card has been greatly improved, and the AGP graphics card has been far behind the PCIe graphics card. For example, the current common AGP version of X800 graphics card frequency 400 / 700, 12 pipeline, 256bit, 256M, the price is about 220 yuan. However, the xe800, 500 / 1200, 16 tube, 256bit and 256M of the PCIe version have stronger performance, and the price is only 150 yuan. Therefore, in terms of cost performance, the PCI graphics card is more purchasing! In the same way, the price of the same specification of the PCI version is much lower than that of the AGP version

4. The most important thing to upgrade the graphics card is to test. The old motherboard, especially via, which is a "rare" proct, can support the purchased graphics card. It's not enough to rely on paper, so it must be tested. Even if, in other people's motherboard can be lit, but to your motherboard is another matter. Compatibility, power and so on, will cause your graphics card can not be used, become waste

remember, it is necessary to test! The most important! It's the best to pay for the success of the test

3. The transmission bandwidth of x16 is twice as high as that of X8. However, for most of the graphics cards on the market, except for 4850, gtx280 / 260 and 9800gtx, 8x is enough

4. One is the compatibility between the motherboard and the graphics card.
the other is the automatic energy saving of the graphics card.
for these two problems, the first one has no solution.
the second one is to play large-scale games and then turn on gpu-z

5. It seems that the performance gap is not big, but playing some games will make the screen colorful... My last card is like this. I suspect the capacitor in the graphics card is broken
, I haven't repaired it yet, I've smelled that smell........ Do you smell it*/- fourteen

6. The graphics card is in the wrong position. The two PCI-E slots are different. The blue one is x16 and the orange one is X8. You're probably plugged into the X8. X8 is X8, x16 is x16, it can't change. Add: it's not possible

7. There are three modes in total for al PCI-E x16 graphics card
X4 x16
X8 X8
x16 x16
the performance of X8 X8 is almost the same as that of x16 x16
the performance can be improved by more than 80%
the performance of X4 x16 can be improved by 40%
for single card, Each PCI-E slot is regarded as PCI-E x16. When using
al cards, it is calculated according to the exchange mode supported by the motherboard
---
X8 + X8
refers to the exchange mode of two cards in the default X8 X8 mode
performance can be improved to about 80% of that of a single card
X8 + X8 and x16 x16 have little impact on bandwidth
x16 X4 will affect bandwidth, The performance of exchange of fire is only 40%
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

8. Energy saving mode