Three DMA builds, by budget
Three complete DMA builds by spec class, ranked by cost rather than priced: what each tier gets you, what it gives up, and the one upgrade that matters most at each level.
Short answer
Optional layers, not the card, decide your DMA tier: tier one is radar only, with an entry card, used second PC and spare monitor. Tier two adds a mainstream card and an input device, and tier three adds a fuser and high-refresh display path.
On this page11
- Where does the money in a DMA build go?
- How the three tiers compare
- Tier one: radar on a second screen
- Tier two: ESP with aim assistance
- Tier three: overlay on your main monitor
- Which upgrade matters most at each tier?
- What costs do people forget to budget for?
- What not to spend money on
- What to check before choosing a tier
- Questions about budget
- Sources
Where does the money in a DMA build go?
People plan a DMA build by shopping for a card and are then surprised by the total, because the card is usually not the largest cost. A fuser in the 4K and high-refresh class can cost more than twice a mainstream card. A second PC, an input device and a decent cable together often cost more than the board itself. The tier you end up in is decided by two optional layers, the input device and the display path, while the FPGA class printed on the box barely matters.
How the three tiers compare
The tiers are described by spec class rather than product name, with no currency figures. Firmware and software are priced by whoever publishes them, so no tier here includes them.
| Tier 1: radar | Tier 2: ESP and aim | Tier 3: full stack | |
|---|---|---|---|
| Card class | Entry PCIe (35T) | Mainstream PCIe (75T) | Mainstream or high-headroom (75T/100T) |
| Second PC | Used ex-lease micro desktop | New low-power mini PC | New mini PC with clean USB topology |
| Display path | Any spare 1080p panel you own | A second monitor you can read boxes on | Fuser to the main monitor, priced by class |
| Input device | None | HID board or box | HID board or box |
| Cabling | One USB 3 data cable | Two USB cables | USB plus two video cables to fuser spec |
| What it does | Information: map awareness, rotations, loot | Information plus engagement: boxes, and assistance on target | All of that, on the screen you already play on |
| Setup effort | One evening, four things to get right | One or two evenings, six things | Two evenings, and the fuser is its own project |
| Ways it can break | Card, firmware, USB path, software | Those plus HID enumeration and descriptor issues | Those plus EDID, resolution and black-screen faults |
Read the bottom two rows before the top two. The main difference between the tiers is not money but how many things have to be correct at the same time.
Tier one: radar on a second screen
Tier one is an entry card, a used office micro desktop, a cable and whatever spare monitor you already have. You get positional information and nothing else, which in most objective and extraction games is the majority of the practical benefit. You give up boxes on your main screen and any assistance on target. In return you get a build with four moving parts, so when it breaks there are only four places to look. For a first build this is not just the cheap option but the correct one.
Tier two: ESP with aim assistance
Tier two is a mainstream card, a new mini PC, a second monitor and an input device. The change of card class matters less than people expect, because the real upgrade is the input device. It is also the layer that introduces a genuinely new kind of problem, since something now has to present itself to the gaming PC as a mouse. Budget for a second USB cable and for an evening of getting descriptors and ports right. You still give up the overlay on your main monitor, although most people at this tier mind that less than they expected.
Warning
Tier three: overlay on your main monitor
Tier three is everything from tier two plus a fuser and its video cables. This is the build people picture when they imagine DMA, and it is also the one that goes wrong most often. The fuser has to accept your resolution and refresh rate and present a convincing EDID upstream, without adding latency you can feel. The entry fuser class is affordable, but the class that keeps a high-refresh 1440p or 4K signal intact is the most expensive single item in the whole stack. Buy this tier last, once the rest of the build is stable, and never as your first step.
Which upgrade matters most at each tier?
At every tier there is exactly one thing worth spending your next small upgrade budget on, and it is almost never what people actually buy.
| Tier | The upgrade that matters | Why | What people buy instead |
|---|---|---|---|
| Tier 1 | A proper USB 3 data cable and a direct rear port | The USB path, not the FPGA, sets your real read rate. A good cable on an entry card beats a bad cable on any card. | A bigger card, which fixes nothing a bad cable caused |
| Tier 2 | A better second PC with a clean USB topology | Dropouts and stutter at this tier are usually controller contention, not the board. | A higher FPGA class, or a more expensive input device |
| Tier 3 | A fuser class that actually matches your monitor | An underspecified fuser is the difference between a build you use and a build that black-screens. | A 4K fuser for a 1080p monitor, which is money for headroom you cannot see |
What costs do people forget to budget for?
These small lines add up to a meaningful share of a tier-one build, and nobody includes them in a forum quote.
- USB 3 data cable
- The cheapest line in the build, and the included one is not always adequate
- Second USB cable
- For the input device, if you have one
- Video cables
- Two, to the fuser's actual spec — not the ones in the drawer
- Keyboard, mouse, cables for the second PC
- Or a KVM, or remote desktop over the local network
- A spare SSD
- Optional, but a clean Windows install on the second PC is worth having
- Firmware and software
- Priced by whoever publishes them. Ask for a current figure
- Downtime
- Not money, but the real cost. Builds go down after major game patches
Tip
What not to spend money on
Four purchases are best avoided. The first is a gaming-grade second PC. The reading machine renders nothing and needs no graphics card, so a low-power mini PC with good USB beats a mid-range gaming box at twice the price. The second is a high-headroom FPGA on a first build, because you will not reach that headroom before you have proven the USB path. The third is a 4K fuser feeding a 1080p monitor. The fourth is a spoofer bought alongside a first build, which solves a problem you do not have yet and will not help a build that has never worked.
What to check before choosing a tier
- You have added up the firmware and software cost for your tier, not just the hardware
- The title you play has a live status row for that tier's software
- For tiers 2 and 3, you actually want aim assistance and understand that it needs its own device
- For tier 3, you have checked the fuser class against your monitor's resolution and refresh rate
- You have budgeted for cables as their own line item instead of adding them at the end
- You are prepared for the build to be down for a while after a major game patch
Questions about budget
Can I build a working DMA setup on the smallest budget here?
Yes, and radar only on an entry card is a real build rather than a crippled one. What you lose is boxes on your main screen and any assistance on target, not reliability.
Is a used second PC a false economy?
Usually not. An ex-lease micro desktop with a rear USB 3 port does this job as well as a new mini PC. Before you rely on it, check the port, check that it boots and put a clean Windows install on it.
Should I buy the highest FPGA class to future-proof?
Only if your firmware provider publishes images that use the headroom. Otherwise the money does more work in the second PC or the display path, and no card class can fix a marginal USB link.
Why is the fuser so expensive relative to everything else?
Because it does real-time video processing on a signal where you notice any loss of quality immediately. Entry classes handle 1080p and 2K affordably, and the cost comes from keeping a high-refresh 1440p or 4K signal intact.
Can I upgrade from tier one to tier three later?
Yes, and that is the sensible path, because adding an input device or a fuser later does not make anything in tier one redundant. The one exception is the entry card, if your firmware provider stops publishing images for it.
Sources
The three tiers, the cost ordering and the upgrade advice come from the team's own bench work, not from any published source.
- 01AMD/Xilinx DS180, 7 Series FPGAs overview
the 35T, 75T and 100T FPGA size classes the tiers are built on
docs.amd.com
- 02VESA E-EDID standard, release A2
a fuser having to present a convincing EDID upstream
glenwing.github.io
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