since he is using the same cpu in both tests i assume he's just using the pcie 3.0 and 4.0 slots on the same motherboard, so i would assume it is on for both
@@makesome_pointprobably it was, there are plenty of PCIe 3.0 with the option of enabling ReBAR and not enabling ReBar has known high impact on Arc, while here seems like a minimal impact
Does your motherboard and CPU support smart access memory /ReBAR? AMD official note: Ryzen 5000 or 3000 series CPU (excluding the Ryzen 5 3400G and Ryzen 3 3200G) I am more worried about that if I were you because ReBAR/SAM must be enabled for optimal performance on Intel GPU. As this video suggest there's not a huge performance hit running at gen 3 x8
that video would be interesting and i hope he makes it but imo u just dont buy a arc card if u dont have rebar compatible cpu , intel themselves have made it very clear that arc cards are not intended to be used without rebar support
The support highly depends on CPU and motherboard. You can only get Resizable BAR with Intel 400 series motherboards (10th Gen Intel CPU) or better from Intel. And B350/X370 motherboards (latest beta BIOS) + 3000 (not G)/5000 series Ryzen CPUs or better from AMD.
@@decomix7526 Intel 8th/9th also also can, but that depends on the motherboard vendor, Asrock Z390/Z370 support it. It is relatively new so valid point that we must see performance with ReBAR off to simulate older CPU
Yeah, Resizable BAR and Above 4G Decoding must be enabled for optimal performance (Intel says so). I don't know how severe performance hit would you have without it. So with this motherboard you can't get it. Only 10th+ Gen Intel CPUs have Resizable BAR feature support. So Intel 400 series motherboards are the minimum. On AMD side you would be way more lucky as you can get Resizable BAR even with B350/X370 boards (latest beta BIOS) and 3000 (not G)/5000 series Ryzen CPUs.
no, normal PCIe just change the generation from gen 4 to gen 3. Oculink will probably be worse (theoritically oculink bandwidth is equivalent to gen3 x8 64Gbps but that's theoritical)
there is no intel 2nd gen processors that this card would be worth pairing with ,even if rebar wasnt needed for majority of the performance and features of this card itd be a major bottle neck ,if ur gunna stick with 2nd gen intel then go with something used or cheaper but honestly if u got money for b580 u prolly should spend that money to get into am4 platform ,even like cheap board and cpu would help alot with upgradability and performance ,even basic things like browsing u would be shocked how much of a difference modern parts make
@@deyeatdapoopoo7582 not noticable unless you see that number on the fps counter. (barely) less than 60fps vs 63fps is indistinguishable (playing with igpu so I would know)
@@kartikthakor2800 He's asking why that CPU is running at Pcie 3.0 when it can support 4.0. The creator changed from pcie 4.0 to pcie 3.0 in the UEFI settings because the whole point of the video is to test if the GPU runs well on 3.0 systems.
Looks like 5% and some places up to 10% gain. Had you used matching architecture from INTEL CPU you might have got another 5% if not more. Alchemist there is a good gap.
"Matching architecture" is not a thing. AMD's X3D chips have been shown to be superior in most games, even when compared to Intel's newly released Core Ultra chips.
@@angelgonzalez2379 It sure is a thing up to 20% and every driver update widens the gap. INTEL is optimized for REBAR/E Cores that ARC rely on. AMD doesn't because AMD/Nvidia GPU's don't have any gains from REBAR/E Cores.
They cheaped out on pci lanes. Knowing that the target audience are often on an older system (with pcie3.0).. it looks like a pretty stupid design choice if you ask me.
@@StarsAtNight1 Does it matter? NO. There is no reason to give a low end gpu full 16 lanes as its wasted anyawys. Even in high end boards the first m.2nvme ssd limits the first pcie connectors bandwith to 8 lanes anyways.
@@StarsAtNight1 ACtually I found out it's the same on every card. Even 4090. Funny enough, even on a 4090 there is only like a 2-3 fps difference on average. Funny how that works lol. I picked up the b580 and what a fantastic card, everything runs perfectly. Great deal for $250 holy molly.
ty for your test
Thanks for the benchmark
Полезный тест для старой системы, такой как у меня. Спасибо!
great test, one of the very first ones as well, can you do one 1080p ?
Was RE-BAR ON?
On the 3.0 system
Probably it was not
@@makesome_point I have rebar on on my 3.0 system.
i would guess so
i have a pci e 3.0 motherboard and it does support re bar (had to update bios)
since he is using the same cpu in both tests i assume he's just using the pcie 3.0 and 4.0 slots on the same motherboard, so i would assume it is on for both
@@makesome_pointprobably it was, there are plenty of PCIe 3.0 with the option of enabling ReBAR and not enabling ReBar has known high impact on Arc, while here seems like a minimal impact
pcie 4.0 может понадобиться если видеокарта упёрлась в память и ей не хватает, а на 4.0 пропускной способности больше вот тут и будет разница!
Hey man my MSI a320m Pro Max hav pcie gen 3 X 16 will this card run on that
Pls tell as Intel b580 has pcie gen 4 x8
Or it is better to buy new mobo
Yes it can run on pcie gen3
Does your motherboard and CPU support smart access memory /ReBAR? AMD official note: Ryzen 5000 or 3000 series CPU (excluding the Ryzen 5 3400G and Ryzen 3 3200G)
I am more worried about that if I were you because ReBAR/SAM must be enabled for optimal performance on Intel GPU. As this video suggest there's not a huge performance hit running at gen 3 x8
I have ryzen 5 3600
Can I use it on my z490 ud ac and i7 10700 motherboard?
please add test without rebar
that video would be interesting and i hope he makes it but imo u just dont buy a arc card if u dont have rebar compatible cpu , intel themselves have made it very clear that arc cards are not intended to be used without rebar support
Why would you do that if every UEFI bios supports ReBAR?
The support highly depends on CPU and motherboard. You can only get Resizable BAR with Intel 400 series motherboards (10th Gen Intel CPU) or better from Intel. And B350/X370 motherboards (latest beta BIOS) + 3000 (not G)/5000 series Ryzen CPUs or better from AMD.
@@decomix7526 Intel 8th/9th also also can, but that depends on the motherboard vendor, Asrock Z390/Z370 support it. It is relatively new so valid point that we must see performance with ReBAR off to simulate older CPU
@@infochannel8705 Every UEFI bios supports ReBAR. If your mobo vendor doesnt then the github ReBAR does.
if fps same or more in 1080p pic gen 3
nope..its a 2k resolution card
1080p?
I can’t read the results on my iPhone Way too small
Put the Video on 1080p and thank me later
@@SilvãoOldGamer lol😂
its not a big difference around 5 fps on some games most are within the margain of error
In an iPhone precisely you can zoom in directly on the TH-cam player
Looks like 5 to 15% depending on the game and fps
Can I use this on my z270 motherboard? It has pcie3 but I heard some things about resizable bar and things
Yeah, Resizable BAR and Above 4G Decoding must be enabled for optimal performance (Intel says so). I don't know how severe performance hit would you have without it. So with this motherboard you can't get it. Only 10th+ Gen Intel CPUs have Resizable BAR feature support. So Intel 400 series motherboards are the minimum. On AMD side you would be way more lucky as you can get Resizable BAR even with B350/X370 boards (latest beta BIOS) and 3000 (not G)/5000 series Ryzen CPUs.
Yep, idk about 8th gen Z270, but my 9th gen Z390 has it, so check your motherboard support page and see if it is supported
@@decomix7526 ok thanks
Why is your core clock at 2670 locked when it defaults to 2850? lol
tested with oculink?
no, normal PCIe just change the generation from gen 4 to gen 3. Oculink will probably be worse (theoritically oculink bandwidth is equivalent to gen3 x8 64Gbps but that's theoritical)
Test with intel 2nd generation processor
there is no intel 2nd gen processors that this card would be worth pairing with ,even if rebar wasnt needed for majority of the performance and features of this card itd be a major bottle neck ,if ur gunna stick with 2nd gen intel then go with something used or cheaper but honestly if u got money for b580 u prolly should spend that money to get into am4 platform ,even like cheap board and cpu would help alot with upgradability and performance ,even basic things like browsing u would be shocked how much of a difference modern parts make
It was good to see the difference in programs like Premiere Pro, 3D Blender, and the like.
it's fking same lol 🤣🤣 and here i was worried about my b450 tomahawk lol i guess i can use the latest gpus on pcie-3
yes. but this card needs rebar. you gotta have it for it to run well.
It's not. It really depends on the game. The hit certain games like Spider-Man is apparent, going from 63 to 58 FPS for example.
@@deyeatdapoopoo7582 not noticable unless you see that number on the fps counter. (barely) less than 60fps vs 63fps is indistinguishable (playing with igpu so I would know)
@@HardWhereHero B450m and 3000 series CPU (minimum), 90% sure it has SAM/ReBAR
@@infochannel8705 yes i have reBar option in bios
R7 9800X3D PCIe 3.0?
What
@@kartikthakor2800 He's asking why that CPU is running at Pcie 3.0 when it can support 4.0.
The creator changed from pcie 4.0 to pcie 3.0 in the UEFI settings because the whole point of the video is to test if the GPU runs well on 3.0 systems.
This is all the PCIe 5.0 AM5 and moore future technology, increase 10-15% performance but few hundred dollars moore
Looks like 5% and some places up to 10% gain. Had you used matching architecture from INTEL CPU you might have got another 5% if not more. Alchemist there is a good gap.
"Matching architecture" is not a thing. AMD's X3D chips have been shown to be superior in most games, even when compared to Intel's newly released Core Ultra chips.
@@angelgonzalez2379 It sure is a thing up to 20% and every driver update widens the gap. INTEL is optimized for REBAR/E Cores that ARC rely on. AMD doesn't because AMD/Nvidia GPU's don't have any gains from REBAR/E Cores.
PCIe3.0x8 still enough for lower-mid tier?😳
Colour me surprised!
I guess I can't blame PCIe3.0x16 for my RX6800 being in the 50th percentile....
Poor architecture.
Shouldn't be any difference with this tier of card
Even with a 4090 there was a few frames difference between PCIE 3 VS 4.
bandwidth limited, even 4090 as kazuviking said has some impact running on gen 3. Comment responsibly, don't just say factually Incorrect statement.
They cheaped out on pci lanes. Knowing that the target audience are often on an older system (with pcie3.0).. it looks like a pretty stupid design choice if you ask me.
@@StarsAtNight1 Does it matter? NO. There is no reason to give a low end gpu full 16 lanes as its wasted anyawys. Even in high end boards the first m.2nvme ssd limits the first pcie connectors bandwith to 8 lanes anyways.
@@StarsAtNight1 ACtually I found out it's the same on every card. Even 4090. Funny enough, even on a 4090 there is only like a 2-3 fps difference on average. Funny how that works lol.
I picked up the b580 and what a fantastic card, everything runs perfectly.
Great deal for $250 holy molly.