I built an entire PC out of the best Prime Day component deals on the final day of the big sale

It seems to be becoming a bit of a regular feature that whenever there's a big sales event on such as Prime Day or Black Friday, I've got to try and build the best PC I can using only the discounts available at the time. For reference, I've done this in the past for previous big Prime Day and Amazon Spring Deal Days, and now, for a bit of fun, here is the Eurogamer Prime Day 2026 PC for October.

The CPU - AMD Ryzen 7 7800X3D - £279 (was £449)

We've actually got a veritable treasure trove of CPU deals to pick from, so it was quite difficult to know which to go for as we had both AMD and Intel options on the table. In the end, I settled on this £279 AMD Ryzen 7 7800X3D that provides some especially beefy gaming performance for a rather strong price, especially with the discount in mind.

This is an 8-core/16 thread chip that makes for an excellent option for gaming workloads, especially as we've found in our testing. In actual fact, due to the single chiplet design, it actually offers as good, if not better gaming performance than the higher-end non-X3D chips AMD offers. In addition, while its content creation scores aren't as potent as the non-X3D chips, they remain decently strong.

Building on AM5 is also future-proof for any further upgrades you wish to make down the line, be it to any of the Ryzen 9000 chips (if you want to), or anything that comes later on.

The GPU - Asus Prime RX 9070 XT - £660 (others are £690-£750)

Finding a GPU given the current landscape was always going to be tricky, and the best I can do is this Asus Prime RX 9070 XT for £660. It isn't technically a Prime Day discount, but it's the most affordable variant of the card I can find, and the ones that are earmarked as being discounted are a fair whack more expensive.

In the Digital Foundry review at the time, Rich noted how the 9070 XT has offered a real leap in performance against the previous generation with numbers ahead of the RX 7900 XT and XTX models in some instances, plus having much more capable RT performance - an area where AMD has traditionally struggled.

As for rasterisation, this card pulls even further ahead of the last-gen RX 7900 XT and takes it to Nvidia's choices, too. In F1 24, the 173fps at 1440p puts it on par with the 7900 XT while miraculously also being just three percent behind the RTX 5080, and 14 percent ahead of the RTX 5070 Ti. Forza Horizon 5 sees the 5070 Ti peg back a little, taking a small 2fps lead over the 9070 XT, although it's worth remembering the gulf in price that exists between the two cards.

You also get the powers of AMD's FSR4 upscaler, which is a much more potent performer than the older FSR3 with it able to extract more detail in focused areas, such as on clothing and particle effects. With a recent update, there's AMD's new Redstone suite that ups the ante with improvements to frame gen, a form of ray reconstruction and more besides.

The SSD - Netac NV7000-t 2TB SSD - £161 (was £196)

You and I both knew this was coming, but it doesn't make it any less pleasant. SSD prices have risen quite a bit since previous editions of this article, and from a value standpoint, this time it's a 2TB option to be a little more sensible. The drive I've chosen is this Netac NV7000-t in 2TB flavour at £161. I don't like the price, but it's one of the best I can find at the moment.

The NV7000-t is the brother to Netac's standard NV7000 drive, which adds a heatsink, although removes the DRAM cache. It's rated for up to 7300MB/s reads and up to 6700MB/s writes, while 900K IOPS random reads and 700K IOPS random writes are a little behind the fastest PCIe 4.0 drives but still more than sufficient for PS5 and PC gaming.

Even relying on HMB on PCs, this makes it one of the best value gaming SSDs, with sequential speeds that rival the likes of the WD Black SN850x and Samsung's 990 Pro while being a fair whack cheaper, considering current SSD prices.

A 2TB capacity also means you'll be able to get a fair amount of games and locally stored media alongside a Windows install without so much as breaking a sweat. It's much stronger than 1TB without spending much more and without spending even more on a bigger variant. Truth be told, I'd nearly be running out of space without even installing games, with nearly 1TB being locally stored hi-res music. Your mileage will of course vary, and if you aren't a hoarder like me, I'm sure you'll be fine with 2TB.

The RAM - Crucial Pro 32GB DDR5-6000 CL36 - £400 (was £510)

RAM's one piece of this build where these horrendous price rises are unavoidable, and this Crucial Pro kit that I've oft-recommended in the past is the pick of the bunch of the apparent RAM 'deals' we're seeing at £400.

We've seen higher speed DDR5 RAM have an impact in offering an enviable performance boost in some titles in our CPU testing in the likes of both Cyberpunk 2077 and Flight Simulator 2020 against the base-spec DDR5-4800, and this Crucial kit provides the chance for you to get some extra performance with 6400 MT/s transfer rates, while also giving you a fair amount of capacity. This kit's tighter CL32 timings also mean it's suitable for overclocking, too.

The problem, of course, is price - this used to be a kit that'd go for well under £100, although prices have risen nearly as high as £500 for this kit in the last few months. The only reason it's here is because it's a genuine reduction for the Prime Day sale back down to £400. Again, I don't like it, but it's some of the best I can find.

The Motherboard - Gigabyte B850 Eagle Wifi 6E - £132 (was £150)

Weirdly, finding a motherboard hasn't been the hardest task this time around, as we found this feature-rich Gigabyte B850 Eagle Wifi 6E model for £132 with relative ease on the Amazon deals pages. Usually, it can be quite fiddly to pair a CPU and motherboard during these sales events.

It's an ATX motherboard, and comes with all the things you could want from a modern choice, including PCIe 5.0 x16 for your GPU and three M.2 slots. One of these is a Gen 5 one too for brisk speeds, plus there are two PCIe 4.0 M.2 slots for adding more in if you need down the line. RAM support is DDR5, with speeds of up to 8200MT/s and overclocking if you want to go mad.

On-board Wifi is present with Wifi 6E, plus the port selection on the rear includes Gigabit Ethernet, a fast USB-C and a vast array of eight USB-A ports of varying speeds. You get HDMI and DP for your CPU's integrated graphics if you need it and a PS/2 port.

The PSU - Corsair RM850e (2025) - £76 (was £115)

Perhaps the biggest surprise of this entire list is the power supply. Yes, you don't need an 850W unit for the components in this PC - far from it - but this reliable Corsair RM850e (2025) model is actually as, if not more, affordable as some of the other 750W or lower units, and gives you more power budget if you want to upgrade anything down the line without changing the PSU. For £76, it feels like a bit of a no-brainer.

850W of power is enough for running even some of the beefiest components available, being in line with Nvidia's minimum recommendation for a 5080, and above the 750W that AMD recommends for the 9070 XT. With regards to last-gen components, it's the minimum recommended wattage for more 'standard' RTX 4090s (such as the Founders Edition), while also being above the minimum recommendation for AMD's top of the line RX 7900 XTX. In fact, you get a little bit of headroom in going for an 850W option with AMD's top contender. For the 7800X3D and RX 9070 XT on offer, this is more than adequate.

The RM850e is also fully compliant with the latest ATX 3.1 standards and PCIe 5.1 platform, so will play nicely with the latest systems. In addition, it comes with the new 12V-2x6 connector, too, so you can run modern high power 50-series Nvidia GPUs without needing to purchase any other adapters or cables, which is especially useful.

This is also a fully modular PSU, so you can save on some of the unneeded cable spaghetti when putting it in your system and connecting everything up. It is also Gold-rated with the Cybenetics efficiency rating, which Corsair moved to as it's a more stringent rating system than the 80 Plus system; it still means this is a reliable and efficient unit.

The CPU Cooler - Thermalright Peerless Assassin 120 SE - £23 (was £27)

One thing I almost forgot about was that our Ryzen 7 7800X3D processor above doesn't come with its own CPU cooler bundled in the box, so we'll need to supply our own. Nonetheless, as the chip only has a more modest 120W TDP, it means we don't need to move heaven and earth to find a cooler. This Thermalright Peerless Assassin 120 SE should do the trick, especially for just £23 - a bargain price for what is a legendary tower air cooler.

This Peerless Assassin is a dual-tower air cooler, which should provide enough cooling power for a large range of both AMD and Intel CPUs, judging by its previous results. It comes with dual 120mm fans, as well as six heatpipes. The fans on offer here are a pair of Thermalright TL-C12 PWM options, which offer speeds of up to 1500RPM and a rated airflow of up to 66.17CFM, which is in line with more premium choices that cost a lot more, such as the Noctua NH-U12A and be quiet! Dark Rock Pro 4.

In terms of compatibility, Thermalright rates the Peerless Assassin to work with a wide array of CPUs. AMD's most recent two sockets, AM4 and AM5, are supported, while there is also a range of Intel options from socket LGA115x all the way up to more recent options to LGA1851, so you're supported on both Ryzen 9000 and Intel's latest Core Ultra 2. This is also a good-looking cooler with its two-tone grey chassis, meaning it'll sit well in a variety of systems, including this one where we're going for more of a monochrome and subdued aesthetic.

The Fans - Arctic P12 (5 Pack) - £15 (was £20)

Admittedly, these case fans are simply here in case you want to add more to the stock ones in the case we've picked out. These Arctic P12s are here for their solid value for money, as well as decent airflow for such a cheap set. Five (!) fans for £15 isn't really to be sniffed at. That's enough to fill every spare fan slot in the case, and still have a couple left over for a future build or as spares, which makes them a handy thing to have in the cupboard for very little outlay.

The Case - NZXT H5 Flow (2024) - £42 (was £50)

As with the motherboard situation, there is a veritable treasure trove of ATX PC cases to choose from, and I could have easily gone with something from MSI or Fractal Design for this section. Instead, I've gone with a case I actually have here at home - the 2024 refresh version of the NZXT H5 Flow. For £42, it's a very good choice.

This is actually the exact PC case I used in the AMD Ryzen 5 5600 in 2025 article, which I liked a lot as it's an easy case to build in with lots of room for routing cables thanks to wide channels, as well as hooks and straps to tie them down in place. The case also has room for either a 360mm radiator in the front and a 240mm radiator up top, and comes with two non-RGB 120mm Core fans pre-installed - one for intake in the front and one for exhaust, which is handy. If you need more fans, then you've got the inexpensive Arctic fan pack above.

What's also handy here is the fact the top, side and front panels all pop off with magnets, and they come with a fine mesh pattern for helping airflow and reducing dust ingress, in spite of the fact there aren't physical dust filters as seen on other cases. They do a good job of preventing most dust from getting in, although in my experience, it can lead to dust sitting on the front of the PC in larger portions, arguably because of the power of the Noctua fans that are installed.

The PSU shroud is also perforated on the bottom side, so air intake can be properly directed with the bottom pair of 120mm fan slots. Front I/O is little more than passable though, with a singular USB-C and USB-A, as well as a power button and headphone jack. You may want to invest in an inexpensive USB-C hub to expand front I/O, or make full use of the rear ports that the Gigabyte motherboard above offers.

The Finished Build - Price - £1788

So, there you have it - that's the finished build for you - here's a PC PartPicker list of components if that's easier - although their prices aren't all correct, hence the difference at the end. Nonetheless, this is a very competent system for 1440p RT gaming with a speedy CPU and GPU combo, as well as solid RAM, a snappy and capacious SSD, and decent room for upgrades down the line elsewhere.

With the GPU and RAM taking up the lion's share of the budget, the rest of the parts have been picked to keep costs sensible while leaving plenty of room to grow. Thanks to the AM5 platform and that generous 850W power supply, you could drop in a Ryzen 9000 chip, add more storage or swap in a faster graphics card down the line without having to rebuild the whole system.