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AMD Radeon RX 6800 Review: Chipping at the Heels of the RTX 3080

AMD’s RDNA 2 based Radeon Big Navi graphics cards are finally set to hit retail today, with the RX 6800 and 6800 XT reference models expected to be available across all major markets in limited quantities. In this post, we have a look at the Radeon RX 6800 and see how it holds up compared to the competition. We’ll be checking the raster performance, ray-tracing grit, and an analysis of the much-advertised Smart Access Memory (SAM) which for the time being is exclusive to the Ryzen 5000 CPU-Radeon RDNA 2 GPU combos. Finally, we’ll also try overclocking the GPU, and yes, it does really reach 2.5-2.6GHz, unless you have a really crappy part. Read our architectural deep-dive here:

AMD Radeon RDNA 2 “Big Navi” Architectural Deep Dive: A Focus on Efficiency

Test Bench

  • CPU: AMD Ryzen 5 5600X @ 5GHz
  • Motherboard: ASRock X570 Taichi (Latest BIOS)
  • Memory: Trident Z Royal 8GB x2 @ 3900MT/s (1:1:1)
  • PSU: Corsair HX1000i
SpecificationsRTX 3080RTX 3070Radeon RX 6800Radeon RX 6800XT
Shaders8704588838404,608
Ray-Accelerators/RT Cores68466072
Boost Clock1710MHz1725MHz2,105MHz2,250MHz
Memory10GB GDDR6X8GB GDDR616GB GDDR616GB GDDR6
Bus Width320-bit256-bit256-bit256-bit
Bandwidth760GB/s448GB/s512GB/s512GB/s
TMUs272184240288
ROPs969696128
TDP320W220W250W300W
Price$699$499$579$649

Radeon RX 6800 vs RTX 3070: 1440p Gaming Benchmarks

In general, the Radeon RX 6800 is 5-10% faster than the RTX 3070, with some AMD favored titles like Shadow of the Tomb Raider and Borderlands 3 showing a delta as wide as 20-25%. In hindsight, that may seem like a good thing, but keep in mind that the former costs $79 more than the latter. Compared to the RTX 3080 ($699), the 6800 lags by ~15% on average, with some games like Metro Exodus and Strange Brigade extending it to 25%.

Radeon RX 6800 vs RTX 3070: 4K Gaming Benchmarks

At 4K, the Radeon RX 6800’s lead over the RTX 3070 grows to nearly 25%, with multiple entries seeing deltas of around 30%. An extra 25-30% performance for $79 seems rather acceptable, doesn’t it? On the other hand, the RTX 3080 continues to be 20-25% faster than the 6800 across most titles, although some do see the gap reduce to under 10% (Odyssey, Far Cry, Tomb Raider).

Radeon RX 6800 vs RTX 3070: Ray-Tracing Performance

Continued on the next page…

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Areej

Computer Engineering dropout (3 years), writer, journalist, and amateur poet. I started Techquila while in college to address my hardware passion. Although largely successful, it suffered from many internal weaknesses. Left and now working on Hardware Times, a site purely dedicated to.Processor architectures and in-depth benchmarks. That's what we do here at Hardware Times!
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