मेरी मौजूदा किराया HTPC has an nVidia GeForce GTX 1050Ti 4Gb with which I am able to upscale all content to 1080p with fairly high quality settings, और भी हूँ (केवल) able to playback 8k 60fps content downscaled to 1080p. कैसे कभी, I have long wondered what the benefits of a more powerful card might be on the ability to use higher settings. उदासी से, no-one seems to provide any benchmarks for madvr, तो कार्ड की तुलना कैसे की जा सकती है?
After much searching, it seems that the strongest indicator of madvr performance is the shader performance of a card. This is effectively measured in FLOPS. There are some limitations to this as a doubling of shader performance doesn’t necesarily mean a halving of render time so the relationship isn’t necesarily linear, but once other factors (e.g. memory quantity and speed) बराबर हैं, the shader performance will be a good guide to the performance of a card.
It is highly recommended to get a GPU with at least 4Gb of VRAM for madvr. Assuming a new card is being obtained, मेमोरी कम से कम GDDR5 होने की संभावना है, और अच्छी तरह से GDDR6 हो सकता है. In these circumstances the shader performance is a useful guide.
I also used a few specific pieces of information to compare different benchmarks to see which type appeared to be the best fit. जानकारी का एक टुकड़ा मैंने उठाया है कि मेरी 1050टीआई Radeon RX से तेज है 570 in madvr which is not reflected in lots of GPU compute benchmarks which suggests these are not a good type of benchmark to use.
Another direct comparison suggests that the 1060Ti is faster in madvr than the RX580 so this should also be reflected in any benchmarks used, जो उनमें से अधिकांश को नियंत्रित करता है! In the same thread there is a suggestion that the Radeon RX 5700 XT is similar in performance to a GeForce RTX 2070 Super
Some other facts from the doom9 forums
- AMD RX480 GTX970 की तुलना में थोड़ा तेज है
- GTX1070 के आसपास है 30% RX480 की तुलना में तेज़
As I wasn’t able to find any benchmark that matched these data points, instead I’ve started by looking at all the cards available in the £100 — £200 bracket which are…
- GTX 1660 £ 195
- RX590 £ 190
- RX5500 XT £ 160
- GTX 1650 सुपर £ 150
- RX580 £ 145
- GTX 1050Ti £ 130
Is there a surprising winner, or does the price predict the performance?
The info I can find suggests that the GTX 1650 (सुपर नहीं) है around 25% तेजी than the GTX 1050Ti in madvr, और 1650 सुपर फिर से तेज है (more cuda cores and a higher clock speed). यह भी प्रकट होता है RX5700 XT है थोड़ा सा तेज GTX की तुलना में 1080 और वह RX5700 (एक्सटी नहीं) is similar to a GTX 1070.
After lots of searching to compare these cards I found a very useful post on reddit which ranks the nVidia cards approximately. These rankings (unsurprisingly) do follow the price of the nVidia cards.
- GTX 1050 / 1050 ती
- GTX 1650
- GTX 1650 Super
- GTX 1060
- GTX 1070/1660 / 1660 उत्तम / 1660 ती
- GTX 1080 / RX 2060
- GTX 1080Ti / RTX 2070
The better cards (towards the bottom) tend to be beyond the price range. मैं एक GTX देख सकता हूं 1070 लगभग £ 230 के लिए eBay पर जो एक नए GTX से अधिक है 1660 इसलिए सेकंड हैंड विकल्प मदद के लिए प्रकट नहीं होते हैं. EBay पर £ 170 के आसपास 6GB GTX 1060 भी हैं (3Gb पर्याप्त नहीं है, 4Gb is a minimum really so be careful with these) — but are they really £20 better than a new GTX 1650 Super?
It sounds like the AMD Polaris generation cards weren’t good performers in madvr. This has apparently changed with Navi, however there have been driver issues with Navi so most people still recommend nVidia cards for madvr. On top of this it is rumoured that future versions of madvr may make use of the nVidia turing architecture, but these rumours are at least a year old with nothing to show so far. If they ever come true it may be that AMD’s “ray-tracing” compatible cards may be just as well suited too.
I have a suspicion that the RX 5500 XT एक अच्छा मूल्य सौदा हो सकता है क्योंकि यह GTX की पेशकश कर सकता है 1660 like performance in madvr, £ 35 कम के लिए, but I can’t find concrete evidence or a direct comparison.
Thanks for the precious information
Doesn’t the 1070 है 6+ tflops whereas the 1660 केवल है 5 TFlops? Wouldn’t this make the 1070 better for madvr, especially when the 1070 comes with 8gb of memory?
Possibly so, altho my guess is that the difference isn’t big enough to enable any additional settings in madvr so may be irrelevant. The tflops score doesn’t appear to perfectly predict madvr performance. The only way to know for sure would be to test both but I haven’t found anywhere doing direct comparisons of cards in madvr.