XFX Radeon RX 7800 XT SPEEDSTER MERC319 16GB GDDR6
The RDNA 3 architecture and 16GB of GDDR6 memory on a 256-bit bus deliver high frame rates at 1440p, with a 2565MHz boost clock pushing 37.3 FP32 TFLOPS. Its triple-fan MERC319 cooler keeps the 236W TDP in check while the card maintains a relatively compact 2.75-slot design for broad case compatibility. This GPU is best for 1440p gamers seeking strong rasterization performance and 16GB of VRAM for high-resolution textures without stepping up to a flagship price.
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Overzicht
The 30-Second Version
A 16GB 1440p beast that runs cool and won't empty your wallet. Just measure your case first, this thing is a long boy.
Pros & Cons
Pluspunten
- 16GB VRAM is future-proof for 1440p and beyond 92nd
- Excellent cooling, stays quiet and cool under load 90th
- Strong ray tracing for an AMD card 89th
- Undervolts beautifully with minimal performance loss 87th
Minpunten
- 326mm long, it will not fit in smaller cases
- Heavy card, needs a support bracket
- AMD drivers can still be finicky on Windows
- AI and compute tasks are a weak spot
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The Word on the Street
De feiten
Performance
What surprised us most is the thermal headroom. This card sits in the 92nd percentile for cooling, which is wild for a triple-fan design pushing 236W. Owners report it stays cool even under full load, and a few have undervolted it to cut power draw by roughly 25% while only losing a few frames. Raster performance lands in the middle of the pack at the 65th percentile, but ray tracing is a bit stronger at 77th, which is respectable for RDNA 3. The 16GB of GDDR6 with 624 GB/s of bandwidth means you won't be texture-starved at 1440p or even 4K with FSR doing some heavy lifting.
Specifications
Full Specifications
Chipset
| GPU Chipset | Radeon RX 7800 XT |
| Brand | AMD |
| Architecture | RDNA 3 |
| Class | consumer |
| Process | 5 |
Memory
| VRAM | 16 GB |
| Memory Type | GDDR6 |
| Memory Bus | 256 |
| Bandwidth | 624.1 |
Compute
| Stream Processors | 3840 |
| Tensor Cores | 120 |
| RT Cores | 60 |
| Base Clock | 1624 |
| Boost Clock | 2565 |
| FP16 TFLOPS | 74.65 |
| FP32 TFLOPS | 37.32 |
Performance
| PassMark G3D | 24307 |
| GPU Compute | 13562 |
Power & Cooling
| TDP | 236 |
| Recommended PSU | 700 |
| Power Connectors | 2x 8pin |
| Cooler | Triple Fan |
| Fans | 3 |
Connectivity
| Interface | PCI Express 4.0 x16 |
| DisplayPort | 3 |
| HDMI | 1 |
| Max Displays | 4 |
| Max Resolution | 7680 x 4320 |
Physical
| Length | 326 |
| Slot Width | 2.75 |
| Form Factor | ATX |
| Weight | 1.7 kg / 3.7 lbs |
Features
| Ray Tracing | Yes |
| Upscaling | FSR |
| AV1 Encode | Yes |
| VR Ready | Yes |
| DirectX | 12 Ultimate |
| RGB | No |
vs Competition
Against the RTX 5070 Ti and RTX 5080 cards from ASUS, MSI, and Gigabyte, the 7800 XT gives up some raw performance, especially in ray tracing and AI workloads. But those cards cost significantly more, and the 7800 XT's 16GB of VRAM keeps it relevant. The Sapphire NITRO+ is the closest AMD rival, and it's a toss-up on cooling and noise. If you need CUDA for work or you're serious about ray tracing at 4K, go Nvidia. If you just want to game at 1440p without selling a kidney, this XFX is the smarter buy.
| Spec | XFX Radeon RX 7800 XT SPEEDSTER MERC319 | ASUS TUF Gaming TUF-RTX5090-32G-GAMING | MSI Ventus RTX 5070 Ti 16G VENTUS 3X PZ OC | Gigabyte AERO GV-N5080AERO OC-16GD | ZOTAC APOCALYPSE ZT-B50800C-10P | Sapphire NITRO+ 11322-01-40G |
|---|---|---|---|---|---|---|
| Chipset | Radeon RX 7800 XT | GeForce RTX 5090 | GeForce RTX 5070 Ti | GeForce RTX 5080 | GeForce RTX 5080 | Radeon RX 7900 XTX |
| Vram | 16GB GDDR6 | 32GB GDDR7 | 16GB GDDR7 | 16GB GDDR7 | 16GB GDDR7 | 24GB GDDR6 |
| Boost Clock Mhz | 2565 | 2407 | 2482 | 2730 | 2730 | 2680 |
| Tdp W | 236 | 575 | 300 | 360 | 360 | 339 |
| Memory Bus Bits | 256 | 512 | 256 | 256 | 256 | 384 |
| Ray Tracing | true | true | true | true | true | true |
| GPU Class | consumer | consumer | consumer | consumer | consumer | consumer |
| Compare | Compare | Compare | Compare | Compare |
| Product | AI | Rt | Vram | Raster | Compute | Feature | Thermal | Efficiency | Connectivity | Gebruikersoordeel | Affordability |
|---|---|---|---|---|---|---|---|---|---|---|---|
| XFX Radeon RX 7800 XT SPEEDSTER MERC319 | 82.8 | 77.6 | 72.3 | 64.5 | 81.7 | 90 | 91.5 | 66.9 | 87.3 | 88.9 | 53.2 |
| ASUS TUF Gaming TUF-RTX5090-32G-GAMING Compare | 96.7 | 90 | 97.4 | 98.6 | 97.4 | 96.4 | 72.8 | 26.8 | 99.2 | 99.1 | 3.4 |
| MSI Ventus RTX 5070 Ti 16G VENTUS 3X PZ OC Compare | 79 | 92.1 | 85.3 | 88.4 | 87.8 | 96.4 | 91.5 | 73.4 | 94.1 | 88.9 | 20.7 |
| Gigabyte AERO GV-N5080AERO OC-16GD Compare | 85 | 95.2 | 88.5 | 94.1 | 93.1 | 96.4 | 91.5 | 58.9 | 94.1 | 88.9 | 15.9 |
| ZOTAC APOCALYPSE ZT-B50800C-10P Compare | 85 | 97.5 | 88.5 | 94.1 | 93.1 | 96.4 | 91.5 | 58.9 | 94.1 | 99.1 | 19.7 |
| Sapphire NITRO+ 11322-01-40G Compare | 94.7 | 96.2 | 91.5 | 83.6 | 95.4 | 84.4 | 91.5 | 54.5 | 98.7 | 78.4 | 15.2 |
Prijs
Value & Pricing
At $530 to $574, this is a no-brainer if you're building a 1440p rig. You're getting 16GB of VRAM and performance that trades blows with cards costing hundreds more. The affordability score sits right at the 53rd percentile, which means it's not the cheapest option out there, but for what you get, it's hard to beat. If you're on a tight budget, wait for a sale, but don't buy something with 8GB of VRAM just to save fifty bucks.
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Overview
The XFX Speedster MERC319 RX 7800 XT is the card you buy when you're done pretending you need an RTX 4080 for 1440p gaming. This thing is a 16GB monster that chews through modern titles at high refresh rates and stays cool doing it. The one thing to know? It's long. Like, measure your case twice long. At 326mm, this is not a card for compact builds, but if it fits, it's one of the best value plays in the upper mid-range right now.
Common Questions
Q: Does this card come with a support bracket?
No, it doesn't. And honestly, at 326mm and with some real heft to it, you'll want to grab one. A cheap anti-sag bracket or even a little stand will save your PCIe slot from a slow, sad death.
Q: Will this fit in my case?
Only if you've got at least 326mm of clearance. That's the card length, and it's a 2.75-slot design, so you need room for that too. Measure before you buy, not after you've already unboxed it.
Q: Is this good for 4K gaming?
It can do 4K, especially with FSR enabled, but this card is really at its best at 1440p. If you want high refresh 4K without compromises, you're looking at a more expensive tier of GPU.
Who Should Skip This
If you're building a small form factor PC or your case is under 340mm of GPU clearance, this isn't the card for you. Go grab a dual-fan 7800 XT or a shorter RTX 4070 instead. Also, if you do serious AI or compute work, the 66.4 AI score means you'll be happier with an Nvidia card and its CUDA cores.
Verdict
Buy it. The XFX Speedster MERC319 RX 7800 XT is the best upper mid-range card for 1440p gaming right now. It runs cool, has plenty of VRAM, and the price is right. Just make sure your case can handle the length and grab a support bracket.
