• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

AMD Radeon RX 6400 Tested on PCI-Express 3.0

Joined
May 10, 2020
Messages
738 (0.44/day)
Processor Intel i7 13900K
Motherboard Asus ROG Strix Z690-E Gaming
Cooling Arctic Freezer II 360
Memory 32 Gb Kingston Fury Renegade 6400 C32
Video Card(s) PNY RTX 4080 XLR8 OC
Storage 1 TB Samsung 970 EVO + 1 TB Samsung 970 EVO Plus + 2 TB Samsung 870
Display(s) Asus TUF Gaming VG27AQL1A + Samsung C24RG50
Case Corsair 5000D Airflow
Power Supply EVGA G6 850W
Mouse Razer Basilisk
Keyboard Razer Huntsman Elite
Benchmark Scores 3dMark TimeSpy - 26698 Cinebench R23 2258/40751
Joined
Jan 14, 2019
Messages
12,360 (5.75/day)
Location
Midlands, UK
System Name Nebulon B
Processor AMD Ryzen 7 7800X3D
Motherboard MSi PRO B650M-A WiFi
Cooling be quiet! Dark Rock 4
Memory 2x 24 GB Corsair Vengeance DDR5-4800
Video Card(s) AMD Radeon RX 6750 XT 12 GB
Storage 2 TB Corsair MP600 GS, 2 TB Corsair MP600 R2
Display(s) Dell S3422DWG, 7" Waveshare touchscreen
Case Kolink Citadel Mesh black
Audio Device(s) Logitech Z333 2.1 speakers, AKG Y50 headphones
Power Supply Seasonic Prime GX-750
Mouse Logitech MX Master 2S
Keyboard Logitech G413 SE
Software Bazzite (Fedora Linux) KDE
you're only a gamer if you have a 2000$+ system /s
It's funny because many of the people who cry that "nothing below 5641616176541 fps is good enough" actually play on consoles that are often locked to 30 or 60 fps.
 
Joined
May 10, 2020
Messages
738 (0.44/day)
Processor Intel i7 13900K
Motherboard Asus ROG Strix Z690-E Gaming
Cooling Arctic Freezer II 360
Memory 32 Gb Kingston Fury Renegade 6400 C32
Video Card(s) PNY RTX 4080 XLR8 OC
Storage 1 TB Samsung 970 EVO + 1 TB Samsung 970 EVO Plus + 2 TB Samsung 870
Display(s) Asus TUF Gaming VG27AQL1A + Samsung C24RG50
Case Corsair 5000D Airflow
Power Supply EVGA G6 850W
Mouse Razer Basilisk
Keyboard Razer Huntsman Elite
Benchmark Scores 3dMark TimeSpy - 26698 Cinebench R23 2258/40751
It's funny because many of the people who cry that "nothing below 5641616176541 fps is good enough" actually play on consoles that are often locked to 30 or 60 fps.
The funny thing is I do have an high end gaming (well... not just gaming...) system, but I can still enjoy playing on a consolle at 30 or 60 FPS.
 

Fast Turtle

New Member
Joined
Aug 24, 2021
Messages
6 (0.01/day)
Looking at some of the lag and such I see even with a 5600XT on a PCIe 4.0 slot limited to 3.0 due to 3600xt, I'm seeing anywhere's between 6-8GB of VRAM used by Guild Wars 2 with the DX11 client and High Textures. Even the DX9 client has the same issue due to texture sizes so you wont be able to use a 64/6500 with that setting. In area's such as Divinity Reach or Lion's Arch, there can be lots of lag with massive FPS drops but some of that could be network related as ping times increase to 500+. At that point, you begin rubber banding due to server load and it's something that's going to require a complete redesign of the game as those maps and such are on my system. Game Dat File is now almost 68GB due to how much I've managed to explore. My nephew who also plays is the same size so the only data being transfered when you enter a map is location and state for other players and npc's on that map.
 
Joined
Dec 5, 2017
Messages
157 (0.06/day)
Unless the prospective buyer can't fit that 7950 into their slim case. Or they want new drivers (look at how Halo Infinite runs on the 7950). Or better efficiency / heat / noise. Or modern video decode capabilities.

Gaming performance isn't the only measuring point of a graphics card.
Of course, I wouldn't recommend anyone buy a 10 or even 5 year old video card and consider it miraculous such a thing can even run modern games. The point is the performance per dollar stagnation has reached a point of absolute absurdity, nobody would have ever believed it could reach this point, and that's still the only thing the bulk of this market truly cares about.

The 7770 cost the same $159 as the 6400 and was as good as a GTX 280 IIRC, $650 flagship of 4 years prior (and people said that was a ripoff). Now $159 can get you the same perf as a GPU that sold for $300 a literal decade ago. I know you see the problem.
 
Joined
Jan 14, 2019
Messages
12,360 (5.75/day)
Location
Midlands, UK
System Name Nebulon B
Processor AMD Ryzen 7 7800X3D
Motherboard MSi PRO B650M-A WiFi
Cooling be quiet! Dark Rock 4
Memory 2x 24 GB Corsair Vengeance DDR5-4800
Video Card(s) AMD Radeon RX 6750 XT 12 GB
Storage 2 TB Corsair MP600 GS, 2 TB Corsair MP600 R2
Display(s) Dell S3422DWG, 7" Waveshare touchscreen
Case Kolink Citadel Mesh black
Audio Device(s) Logitech Z333 2.1 speakers, AKG Y50 headphones
Power Supply Seasonic Prime GX-750
Mouse Logitech MX Master 2S
Keyboard Logitech G413 SE
Software Bazzite (Fedora Linux) KDE
Of course, I wouldn't recommend anyone buy a 10 or even 5 year old video card and consider it miraculous such a thing can even run modern games. The point is the performance per dollar stagnation has reached a point of absolute absurdity, nobody would have ever believed it could reach this point, and that's still the only thing the bulk of this market truly cares about.

The 7770 cost the same $159 as the 6400 and was as good as a GTX 280 IIRC, $650 flagship of 4 years prior (and people said that was a ripoff). Now $159 can get you the same perf as a GPU that sold for $300 a literal decade ago. I know you see the problem.
I agree, the GPU market is in absolute shambles right now - but that isn't the 6400's fault. It's just a symptom of the problem, not the problem itself.

I remember when I bought an X800 XT (a high-end GPU) from pocket money as a high school student with no job. Sure, it was an ex-display unit with a small discount, but still. Now I work night shifts in a full-time job, but I couldn't afford anything better than a 3070 Ti or 6700 XT.
 

ARF

Joined
Jan 28, 2020
Messages
4,670 (2.64/day)
Location
Ex-usa | slava the trolls
The high-end Radeon HD 4890 was just 195$ right before the Radeon HD 5870 launch back in 2009...

I am sorry but AMD will never receive 940€ for an RX 6800 XT 16 GB from me 18 months after its release..
 

Randomiser

New Member
Joined
May 10, 2022
Messages
1 (0.00/day)
Everyone seems to miss the point and the USP for this card. It draws a good bit less than 75 Watts and therefore can be powered solely from the PCIe bus with a modest power supply and no extra connectors. The only competition comes from the non-overclocked versions of the GTX 1650 (NOT Ti)., which has been overpriced and hard to lay hands on. (Not to mention those tend to push 75 W and I'm much surer an RX 6400 will actually run in my rig than a GTX1650) It will fit in a lot of pre-built desktops from major manufacturers and will allow playing a much wider range of games, mainly older, at frame rates and setting levels much better than their integrated graphics defaults. It will save having to buy a new power supply, and allow light/casual gaming much better. I have a Dell Vostro and can't buy new power supply without modding the case. I mostly play RPGs and if you look at those tested the frame rate hit for PCIe 3 is mostly negligible. Yes, it's a niche market, but so are the highest end cards, and I know which niche I think is bigger.
 
Joined
Jul 23, 2018
Messages
37 (0.02/day)
Location
Durban, South Africa
Processor i5-14600KF
Motherboard GA-H610M-H-DDR4
Cooling NH-D15S
Memory F4-3200C16D-16GIS
Video Card(s) Palit 4060Ti 16GB
Display(s) VG249Q
This is actually a great way of finding out which games haven't been optimized properly (looking at just 1080p).
i.e. Valhalla, Cyberpunk, Deathloop, DOOM, F1, Far Cry, Forza, God of War, Halo, Watch Dogs.
Waaay too much use of CPU<->GPU transfers for these.

I suppose though it's a little more fair to use a GPU with a huge amount of VRAM, to try eliminate swapping due to VRAM exhaustion.
 
Last edited:
Joined
Jan 14, 2019
Messages
12,360 (5.75/day)
Location
Midlands, UK
System Name Nebulon B
Processor AMD Ryzen 7 7800X3D
Motherboard MSi PRO B650M-A WiFi
Cooling be quiet! Dark Rock 4
Memory 2x 24 GB Corsair Vengeance DDR5-4800
Video Card(s) AMD Radeon RX 6750 XT 12 GB
Storage 2 TB Corsair MP600 GS, 2 TB Corsair MP600 R2
Display(s) Dell S3422DWG, 7" Waveshare touchscreen
Case Kolink Citadel Mesh black
Audio Device(s) Logitech Z333 2.1 speakers, AKG Y50 headphones
Power Supply Seasonic Prime GX-750
Mouse Logitech MX Master 2S
Keyboard Logitech G413 SE
Software Bazzite (Fedora Linux) KDE
This is actually a great way of finding out which games haven't been optimized properly (looking at just 1080p).
i.e. Valhalla, Cyberpunk, Deathloop, DOOM, F1, Far Cry, Forza, God of War, Halo, Watch Dogs.
Waaay too much use of CPU<->GPU transfers for these.

I suppose though it's a little more fair to use a GPU with a huge amount of VRAM, to try eliminate swapping due to VRAM exhaustion.
That's not a fair assumption, as these games were developed when Navi 24 wasn't even in the news. Developers had no idea that AMD would come up with a PCI-e x4 graphics card targeted at budget-oriented gamers.
 

Mussels

Freshwater Moderator
Joined
Oct 6, 2004
Messages
58,413 (7.93/day)
Location
Oystralia
System Name Rainbow Sparkles (Power efficient, <350W gaming load)
Processor Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard Asus x570-F (BIOS Modded)
Cooling Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory 2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s) Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage 2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s) Phillips 32 32M1N5800A (4k144), LG 32" (4K60) | Gigabyte G32QC (2k165) | Phillips 328m6fjrmb (2K144)
Case Fractal Design R6
Audio Device(s) Logitech G560 | Corsair Void pro RGB |Blue Yeti mic
Power Supply Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse Logitech G Pro wireless + Steelseries Prisma XL
Keyboard Razer Huntsman TE ( Sexy white keycaps)
VR HMD Oculus Rift S + Quest 2
Software Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores Nyooom.
This is actually a great way of finding out which games haven't been optimized properly (looking at just 1080p).
i.e. Valhalla, Cyberpunk, Deathloop, DOOM, F1, Far Cry, Forza, God of War, Halo, Watch Dogs.
Waaay too much use of CPU<->GPU transfers for these.

I suppose though it's a little more fair to use a GPU with a huge amount of VRAM, to try eliminate swapping due to VRAM exhaustion.
welcome to texture streaming

Remember that these are at maximum settings, too - simply turning down texture settings would reduce the problem significantly
 
Joined
Apr 16, 2019
Messages
632 (0.31/day)
welcome to texture streaming

Remember that these are at maximum settings, too - simply turning down texture settings would reduce the problem significantly
Or you know - not gimping it down to ridiculous x4 interface would do the same...
 

Mussels

Freshwater Moderator
Joined
Oct 6, 2004
Messages
58,413 (7.93/day)
Location
Oystralia
System Name Rainbow Sparkles (Power efficient, <350W gaming load)
Processor Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard Asus x570-F (BIOS Modded)
Cooling Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory 2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s) Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage 2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s) Phillips 32 32M1N5800A (4k144), LG 32" (4K60) | Gigabyte G32QC (2k165) | Phillips 328m6fjrmb (2K144)
Case Fractal Design R6
Audio Device(s) Logitech G560 | Corsair Void pro RGB |Blue Yeti mic
Power Supply Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse Logitech G Pro wireless + Steelseries Prisma XL
Keyboard Razer Huntsman TE ( Sexy white keycaps)
VR HMD Oculus Rift S + Quest 2
Software Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores Nyooom.
Joined
Jul 23, 2018
Messages
37 (0.02/day)
Location
Durban, South Africa
Processor i5-14600KF
Motherboard GA-H610M-H-DDR4
Cooling NH-D15S
Memory F4-3200C16D-16GIS
Video Card(s) Palit 4060Ti 16GB
Display(s) VG249Q
welcome to texture streaming

Remember that these are at maximum settings, too - simply turning down texture settings would reduce the problem significantly
Very true. I've been using the RMPcieLinkSpeed=2 registry tweak to limit my 1070Ti to Gen 1.1 x16, and been testing a few rendering apps/games at lowest settings and resolutions, and monitoring Bus Usage in GPU-Z/Afterburner. This makes it so much more obvious who's doing a lot of this, maybe even too much, instead of preloading it all onto GPU VRAM (8GB is a fairly generous amount!). I get that it's a lot more complicated than this though.
 

Mussels

Freshwater Moderator
Joined
Oct 6, 2004
Messages
58,413 (7.93/day)
Location
Oystralia
System Name Rainbow Sparkles (Power efficient, <350W gaming load)
Processor Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard Asus x570-F (BIOS Modded)
Cooling Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory 2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s) Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage 2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s) Phillips 32 32M1N5800A (4k144), LG 32" (4K60) | Gigabyte G32QC (2k165) | Phillips 328m6fjrmb (2K144)
Case Fractal Design R6
Audio Device(s) Logitech G560 | Corsair Void pro RGB |Blue Yeti mic
Power Supply Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse Logitech G Pro wireless + Steelseries Prisma XL
Keyboard Razer Huntsman TE ( Sexy white keycaps)
VR HMD Oculus Rift S + Quest 2
Software Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores Nyooom.
Very true. I've been using the RMPcieLinkSpeed=2 registry tweak to limit my 1070Ti to Gen 1.1 x16, and been testing a few rendering apps/games at lowest settings and resolutions, and monitoring Bus Usage in GPU-Z/Afterburner. This makes it so much more obvious who's doing a lot of this, maybe even too much, instead of preloading it all onto GPU VRAM (8GB is a fairly generous amount!). I get that it's a lot more complicated than this though.
They have far more than 8GB to load in - as you move between views in the game or things like enemies or terrain go off screen, it's constantly switching to new data.

At a design level it's a tossup - do you focus on preloading as much as possible at the detriment of low-VRAM graphics cards, or do you focus on streaming as fast as possible to work better on the low end hardware?


Until this year pretty much, even budget GPUs had x16 links so it was pretty easy to focus on the streaming options as it worked best for everyone overall
 
Top