Sapphire’s Pulse AMD Radeon RX 6400 ($159) is an intriguing graphics card that brings rather a lot to each budget- and space-strapped PC players. Entry-level playing cards like this aren’t the quickest for gaming by design, however they’ll nonetheless drive a major efficiency increase over built-in graphics and older graphics playing cards for cut price consumers. This card even ups the ante with fashionable options like ray tracing—all whereas concentrating on a second badly uncared for nook of PC gaming: small circumstances. A rarity in at present’s desktop GPU world, the Pulse AMD Radeon RX 6400 is a compact low-profile graphics card, which permits it to suit into smaller techniques that the majority GPUs merely can’t. Whereas the cardboard’s efficiency leaves one thing to be desired—partly a consequence of its measurement and energy profile—this AMD Radeon RX 6400 is nonetheless a welcome addition to the small graphics card market.
Design: The Little Card That May
AMD’s Radeon RX 6400 relies on the chipmaker’s Navi 24 GPU die, which implements the RDNA 2 microarchitecture on a TSMC 6nm manufacturing course of. In full, the Navi 24 GPU incorporates 1,024 streaming processors, 64 texture mapping models (TMUs), 32 raster operation models (ROPs) and 16 ray accelerators. Not all of those are enabled on the Radeon RX 6400, nevertheless, which ships with a partly disabled die with simply 768 streaming processors, 48 TMUs, 32 ROPs, and a dozen ray accelerators compared.
(Credit score: Michael Justin Allen Sexton)The AMD graphics chip can also be loaded with 16MB of L2 cache and the GPU has a 64-bit reminiscence interface that accepts GDDR6 RAM. The Sapphire Pulse Radeon RX 6400 card has 4GB of such reminiscence, which inserts nicely with the opposite {hardware} sources which are out there, offering 128GB/sec of bandwidth.
Once more, this mannequin is additional particular, as it is a compact low-profile card solely half the size of a normal add-on GPU. This implies the cardboard suits simply into compact and small-form-factor desktop PC circumstances. As soon as upon a time, any such card was required for many Mini ITX PC circumstances, as they did not have room for full-size GPUs. That is far much less frequent these days as Mini ITX chassis have grown a bit bigger to accommodate mainstream graphics playing cards.
(Credit score: Michael Justin Allen Sexton)If you wish to construct a mini PC that can match neatly in the identical house as, say, a DVD participant or sport console or VCR, you’d nonetheless be greatest to look right into a low-profile Mini ITX case. And in case you needed that system to pack extra graphics punch than the processor’s built-in graphics, a card just like the Sapphire Pulse RX 6400 is without doubt one of the quickest graphics options that can slot in such a petite case. (The cardboard comes with a separate bracket that allows you to set up it in a full-sized PC if you want to.)
This compact design has just one attainable drawback: much less cooling potential. Fortunately, in our testing this didn’t appear to be a significant situation. The Pulse’s thermal answer is comparatively easy, with an aluminum heatsink, a single skinny metallic heatpipe, and a copper mounting plate, all cooled by a small fan with a diameter of roughly 45mm.
(Credit score: Michael Justin Allen Sexton)Equally vital, the AMD Radeon RX 6400 does not require any extra energy past the 75 watts out there from the PCI Categorical slot. Although that is extra because of the modest GPU than the low-profile card design, it additionally helps to make the cardboard a extra interesting answer for compact PCs, as most techniques like this are usually constructed with comparatively low-capacity energy provides that may’t deal with one in all at present’s monster GPUs.
Take a look at Setup and Competitors
I examined the Sapphire Pulse AMD Radeon RX 6400 on our customary GPU take a look at mattress which options an Intel Core i9-12900K processor working at inventory clock speeds with a Corsair Hydro Collection H100X water cooler. The processor was put in into an Asus ROG Maximus Z690 Hero motherboard for testing functions with 32GB of Corsair Vengeance RAM clocked at 5,600MHz. The system has a 1TB Corsair MP600 Professional NVMe 4.0 solid-state drive as the first storage gadget and a Corsair HX1500i 1,500-watt 80 Plus Platinum energy provide for energy. All exams had been run on Home windows 11 Professional with Microsoft’s newest updates put in.
Although we do not see many low-end graphics playing cards launched as of late, we had been nonetheless capable of scrape collectively some compelling competitors for the Sapphire Pulse RX 6400. The AMD Radeon RX 6500 XT, for instance, makes use of the identical GPU core because the RX 6400 however with none cores disabled, making it an unquestionably sooner choice however with the trade-offs of costing extra, being bigger, and utilizing extra energy.
Nvidia’s closest competing playing cards are a bit dated at this level, based mostly on the Turing structure first used within the firm’s RTX 20-series graphics playing cards. The GeForce GTX 1630 and Nvidia GeForce GTX 1650 Tremendous don’t function ray-tracing cores. Nonetheless, they’re nonetheless pretty succesful graphics options—though they’ve a number of years on them—and they’re nonetheless out there, which makes them wise competitors.
Arguably the fiercest competitors AMD has on this house comes from Intel. The CPU titan’s efforts within the graphics card market to date have been blended, to say the least, however you may’t deny that the Arc A380 is not less than on the cheaper aspect of the GPU market with an MSRP of $139. The Arc A750 is priced a good bit increased, however it may be present in a number of playing cards for $219.
Artificial Assessments
Kicking issues off with artificial benchmarks, we noticed pretty poor outcomes from the RX 6400 in 3DMark. Although it was capable of full the Port Royal take a look at—which is one thing our RX 6500 XT had points with, and lots of the competing Nvidia playing cards flunked as they lack ray-tracing help—its efficiency was among the many worst we have ever seen. It was no higher in Time Spy, both.
Issues picked up a bit in Furmark, the place the RX 6400 was capable of vie with the Arc A380 and handily outpace the GeForce GTX 1630 and GTX 1650 Tremendous. Luxmark additionally confirmed the RX 6400 forward of the GTX 1630, although the A380 and the GTX 1650 Tremendous had been significantly sooner. The identical occurred in Unigine’s Superposition take a look at.
Ray Tracing, DLSS, and FSR Testing
In a single sense, the RX 6400 gained a small win once more in our F1, Returnal, and Cyberpunk benchmarks, because it helps ray-tracing and was capable of full the exams. Once more, that is one thing a lot of the Nvidia competitors could not do; Nvidia has many playing cards that may do ray-tracing however none on this value vary.
That win proved fleeting, nevertheless, because the RX 6400 was fairly gradual in these benchmarks, which raises the query whether or not the cardboard is quick sufficient for ray-tracing within the first place. I might say that it’s, however not at these settings. We take a look at with video games’ highest-quality preset to gauge GPU efficiency and press playing cards as laborious as we will. At extra average settings, the RX 6400 seemingly might use its ray accelerators to some extent, however this might take some fine-tuning to allow. Intel’s Arc A380, which is the closest competing card left within the chart, gave a barely extra spectacular displaying right here with marginally higher take a look at scores with or with out FSR enabled.
The Radeon RX 6400’s abillity to run most of our Returnal and Cyberpunk 2077 exams at excessive settings was attention-grabbing, however not significantly informative. It was too gradual to run Cyberpunk 2077 at 4K decision (it managed solely a single body per second at 1440p), however the truth that it pushed by means of in any respect was oddly spectacular.
Recreation Assessments With out Ray Tracing
AMD and Sapphire’s RX 6400 and the remainder of our low-end playing cards received a greater likelihood to stretch their legs in video games that lack ray-tracing help. That is principally as a result of these video games are older and are subsequently much less demanding, and it is right here we begin to see some actual potential from these playing cards.
In Whole Struggle: Three Kingdoms, the Radeon RX 6400 was handily capable of push previous the Nvidia GTX 1630 in any respect resolutions, although it trailed the GTX 1650 Tremendous. It additionally lagged behind the Intel A380 in any respect resolutions besides 4K, the place the A380 struggled. Issues had been comparable in Shadow of the Tomb Raider, with the RX 6400 surpassing the GTX 1630 whereas dropping to the GTX 1650 Tremendous and buying and selling blows with the Arc A380.
We noticed virtually the very same ends in Far Cry 5, however with a bit extra space between the RX 6400 and Arc A380. The Radeon was clearly sooner at 1080p whereas working this sport, however the Intel GPU pulled forward at 4K. The Arc A380 has a bit extra in the best way of reminiscence bandwidth in addition to extra RAM proper off the bat, which seemingly explains why it was capable of pull forward right here.
Legacy Recreation Assessments
Once I tried some even older video games, the RX 6400 was a bit slower than I anticipated based mostly on its efficiency within the earlier exams. It maintained a wholesome lead over the GTX 1630 in all three video games, nevertheless it could not come near the GeForce GTX 1650 Tremendous.
The AMD card was capable of rating a transparent win over the Arc A380 in these exams, however principally as a result of the latter didn’t run Bioshock Infinite and Sleeping Canine. The Intel card was capable of run Hitman Absolution, however trailed the RX 6400.
Energy and Thermal Assessments
I measured the ability consumption of the graphics card take a look at mattress as a complete utilizing a Kill-A-Watt meter. As nothing was modified besides the graphics card, this provides some perception into the ability draw of every card relative to the others.
Operating solely off the ability offered by the motherboard, the Radeon RX 6400 excelled on this explicit take a look at, because it consumed the least quantity of energy in each take a look at. It additionally did moderately nicely within the thermal take a look at working Furmark, on condition that the Sapphire card has an exceedingly small thermal answer. It wasn’t the coolest-running card, nevertheless it stayed nicely inside the secure vary of operations.
Conclusion: A Middling Finances Card, However A Low-Profile King
As a budget-oriented graphics card, it comes as no shock that the AMD Radeon RX 6400 does not dominate our take a look at charts. Economic system at all times comes with compromises, and on this case it is efficiency. The RX 6400 outruns Nvidia’s GeForce GTX 1630 in addition to built-in graphics options, nevertheless it does not win any races in opposition to different fashionable opponents.
If it can save you and pay a bit of extra, you will discover higher finances GPUs from a pure gaming standpoint. The Intel Arc A380 is a greater choice in lots of circumstances, and so is the getting older however often no costlier Nvidia GeForce GTX 1650 Tremendous. Each of these playing cards use extra energy and are bigger than the RX 6400, although, and in case your finances cannot transcend the worth of an RX 6400, you may nonetheless get a good expertise in lots of video games in case you’re keen to regulate the settings.
Sometimes, we would cease at that, however the Sapphire has an ace within the gap: its low-profile design. On this regard, the cardboard goes from being a merely okay choice for cash-strapped consumers to an distinctive one. The low-profile GPU market is almost lifeless, with fewer choices yearly—certainly, a few of the greatest choices out there are playing cards like AMD’s Radeon R5 250X and Nvidia’s GeForce GT 730, each actually historical by fashionable tech requirements and much slower than the RX 6400. If you would like essentially the most graphics energy you may squeeze right into a low-profile PC, the Sapphire Pulse Radeon RX 6400 is certainly the cardboard to purchase.
