AMD Radeon RX 6600 Review: Lower-Cost RDNA 2 For 1080p Gamers

Radeon RX 6600: Unigine, UL And VR Benchmarks

How We Configured Our Test Systems: We tested the graphics cards represented in this article on a MSI X570 Godlike motherboard, equipped with a Ryzen 9 5950X and 16GB of G.SKILL DDR4 RAM clocked at 3,200MHz. The first thing we did when configuring the test system was enter the UEFI and set all values to their "high performance" defaults, then we disabled any integrated peripherals that wouldn't be put to use. The memory's clock was dialed in to its optimal performance settings using its XMP profile and the solid state drive was then formatted and Windows 10 Professional x64 was installed and fully updated. When the Windows installation was complete, we installed all of the drivers, games, applications and benchmark tools necessary to complete our tests. For all of the standard tests, the Radeon RX 6000 series cards were tested using their "Balanced" performance profile.

radeon 6600 angle 1

Our Test System Configuration:

Hardware Used:
AMD Ryzen 9 5950X
(3.4GHz - 4.9GHz, 16-Core)

MSI X570 Godlike (AMD X570 Chipset)
16GB G.SKILL DDR4-3200

Samsung SSD 970 EVO
Integrated Audio
Integrated Network

NVIDIA GeForce RTX 3060 Ti FE
NVIDIA GeForce RTX 3060 FE
NVIDIA GeForce RTX 2060 Super FE
AMD Radeon RX 6700 XT
AMD Radeon RX 5700 XT
AMD Radeon RX 5600 XT
PowerColor Radeon RX 6600 Fighter
Relevant Software:
Windows 10 Pro x64 (21H1)
AMD Radeon Software v21.30.17.06
NVIDIA GeForce Drivers v471.41

Benchmarks Used:
3DMark (Time Spy, Fire Strike, Port Royal, DXR)
Unigine Superposition
Crytek Neon Noir
Metro Exodus
Final Fantasy XIV Endwalker
Gears 5
F1 2021
FarCry: New Dawn

Unigine Superposition Benchmarks

Superposition is the latest benchmark from Unigine, powered by the UNIGINE 2 Engine. It offers an array of benchmark modes, targeting gaming workloads as well as VR, with both DirectX and OpenGL code paths. There is an extreme hardware stability test built-in as well. Unigine Superposition uses the developer’s unique SSRTGI (Screen-Space Ray-Traced Global Illumination) dynamic lighting technology, along with high quality textures and models, to produce some stunning visuals. We ran Superposition in two modes using the DirectX code path – 1080p Extreme and VR Future -- to compare the performance of all of the graphics cards featured here.

unigine superposition
Unigine Superposition

unigine 1 radeon rx 6600 performance

unigine 2 radeon rx 6600 performance

Unigine Superposition's 1080p Extreme test has the new Radeon RX 6600 slotting in just behind the GeForce RTX 3060, but about 10% ahead of the previous-gen Radeon RX 5600 XT.

unigine 3 radeon rx 6600 performance

unigine 4a radeon rx 6600 performance

unigine 5 radeon rx 6600 performance

Superposition's VR Future benchmark has the Radeon RX 6600 outgunning its previous-gen counterpart by about 10%, but the RTX 3060 jumps out to a larger lead here, not to mention the higher-end cards.

UL VR Mark Blue Room Benchmarks

UL's VRMark is designed to test a PC’s readiness for the HTC Vive and Oculus Rift virtual reality headsets. The benchmark does not, however, require that one of the headsets is attached to the PC to run and it uses an in-house graphics engine and content to ensure comparable results between different platforms. We ran the "Blue Room" VRMark test at defaults settings here, which is currently the most taxing test offered by the tool.

vr mark thumb

radeon rx 6600 vrmark details
 VRMark Radeon RX 6600 Details

vrmark 1 radeon rx 6600 performance

vrmark 2 radeon rx 6600 performance

The new Radeon RX 6600 ends up trailing all of the other cards we tested in VR Mark. Though its clocks, fillrate and compute performance are higher than the older 5600 XT, the RX 6600's lower peak memory bandwidth holds it back here.

UL 3DMark Time Spy DX12 Benchmarks

3DMark Time Spy is a synthetic DirectX benchmark test from UL. It features a DirectX 12 engine built from the ground up to support bleeding-edge features like asynchronous compute, explicit multi-adapter, and multithreading. Time Spy is designed to test the DX12 performance of the latest graphics cards using a variety of techniques and varied visual sequences. This benchmark was developed with input from AMD, Intel, Microsoft, NVIDIA, and the other members of the UL Benchmark Development Program, to showcase the performance and visual potential of graphics cards and other system resources driven by close-to-the-metal, low-overhead APIs.

time spy
3DMark Time Spy

radeon rx 6600 timespy details
Time Spy Radeon RX 6600 Details

time spy 1 radeon rx 6600 performance

time spy 2 radeon rx 6600 performance

In the DX12-based 3DMark Time Spy benchmark, the Radeon RX 6600 trades blows with the GeForce RTX 2060 Super and nearly catches the RTX 3060. Once again, the Radeon RX 6600 finishes ahead of the Radeon RX 5600 XT, but only by a few percentage points.

UL 3DMark Fire Strike Ultra Benchmarks

3DMark Fire Strike has multiple benchmark modes: Normal mode runs at 1920x1080, Extreme mode targets 2560x1440, and Ultra mode runs at a 4K resolution. GPU target frame buffer utilization for normal mode is 1GB and the benchmark uses tessellation, ambient occlusion, volume illumination, and a medium-quality depth of field filter. The more taxing Extreme mode targets 1.5GB of frame buffer memory and increases detail levels across the board. Ultra mode is explicitly designed for high-end and CrossFire / SLI systems and cranks up the quality even further. GT 1 focuses on geometry and illumination, with over 100 shadow casting spot lights, 140 non-shadow casting point lights, and 3.9 million vertices calculated for tessellation per frame. GT2 emphasizes particles and GPU simulations.

3d mark fire strike
3DMark Fire Strike

radeon rx 6600 fire strike details
Fire Strike Radeon RX 6600 Details

fire strike 1 radeon rx 6600 performance

fire strike 2 radeon rx 6600 performance

The Radeon RX 5600 XT's wider memory bus and increased memory bandwidth give it a slight edge over the Radeon RX 6600 in the Fire Strike Ultra benchmark. The newest mainstream Radeon has enough oomph to dispatch the GeForce RTX 2060 Super and RTX 3060 here, however.

UL 3DMark Port Royal Ray Tracing Benchmarks

Port Royal was released earlier this year as an update to UL’s popular 3DMark suite. It is designed to test real-time ray tracing performance of graphics cards that support Microsoft DirectX Raytracing, or DXR. Although DXR is technically compatible with all DX12-class GPUs, the graphics card must have drivers that enable DXR.

3mark port royal dxr
3DMark Port Royal

radeon rx 6600 port royal details
Port Royal Radeon RX 6600 Details

port royal 1 radeon rx 6600 performance

port royal 2 radeon rx 6600 performance

The previous-gen GPUs which lack DXR support drop out of the charts here. 3DMark's Port Royal benchmark, which mixes DXR Ray Tracing effects with traditional rasterization, puts the Radeon RX 6600 at the bottom of the heap, about 17% behind the Radeon RX 6600 XT.

We also experimented with the DirectX Ray Tracing Feature test, which was recently released as an update to 3DMark...

radeon rx 6600 dxr details
DXR Feature Test Radeon RX 6600 Details

dxr 1 radeon rx 6600 performance

This more specialized benchmark, which focuses solely on DXR Ray Tracing effects, also has the Radeon RX 6600 trailing the rest of the pack. Here, the Radeon RX 6600 finishes about 16% behind the higher-end Radeon RX 6600 XT, but well behind the GeForces.

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