Radeon RX 6600 vs RX 6900

VS

Aggregate performance score

We've compared Radeon RX 6900 and Radeon RX 6600, covering specs and all relevant benchmarks.

RX 6900
2020
16 GB GDDR6, 255 Watt
69.54
+76.7%

RX 6900 outperforms RX 6600 by an impressive 77% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking22116
Place by popularitynot in top-10014
Cost-effectiveness evaluationno data66.98
Power efficiency18.8220.57
ArchitectureRDNA 2.0 (2020−2024)RDNA 2.0 (2020−2024)
GPU code nameNavi 21Navi 23
Market segmentDesktopDesktop
Release date28 October 2020 (4 years ago)13 October 2021 (3 years ago)
Launch price (MSRP)no data$329

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores46081792
Core clock speedno data1626 MHz
Boost clock speed2105 MHz2491 MHz
Number of transistors23,000 million11,060 million
Manufacturing process technology7 nm7 nm
Power consumption (TDP)255 Watt132 Watt
Texture fill rate606.2279.0
Floating-point processing power19.4 TFLOPS8.928 TFLOPS
ROPs6464
TMUs288112
Ray Tracing Coresno data28

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 4.0 x16PCIe 4.0 x8
Lengthno data190 mm
Width2-slot2-slot
Supplementary power connectors2x 8-pin1x 8-pin

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR6GDDR6
Maximum RAM amount16 GB8 GB
Memory bus width256 Bit128 Bit
Memory clock speed16 GB/s1750 MHz
Memory bandwidth512.0 GB/s224.0 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x HDMI, 2x DisplayPort, 1x USB Type-C1x HDMI, 3x DisplayPort
HDMI++

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 Ultimate (12_2)12.0 Ultimate (12_2)
Shader Model6.56.5
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.21.2

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

RX 6900 69.54
+76.7%
RX 6600 39.36

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

RX 6900 26739
+76.7%
RX 6600 15135

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD190−200
+71.2%
111
−71.2%
1440p95−100
+69.6%
56
−69.6%
4K50−55
+61.3%
31
−61.3%

Cost per frame, $

1080pno data2.96
1440pno data5.88
4Kno data10.61

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2 111
+0%
111
+0%
Cyberpunk 2077 107
+0%
107
+0%
Elden Ring 122
+0%
122
+0%

Full HD
Medium Preset

Battlefield 5 100−110
+0%
100−110
+0%
Counter-Strike 2 84
+0%
84
+0%
Cyberpunk 2077 81
+0%
81
+0%
Forza Horizon 4 225
+0%
225
+0%
Metro Exodus 140
+0%
140
+0%
Red Dead Redemption 2 75−80
+0%
75−80
+0%
Valorant 150−160
+0%
150−160
+0%

Full HD
High Preset

Battlefield 5 100−110
+0%
100−110
+0%
Counter-Strike 2 68
+0%
68
+0%
Cyberpunk 2077 69
+0%
69
+0%
Dota 2 141
+0%
141
+0%
Elden Ring 132
+0%
132
+0%
Far Cry 5 62
+0%
62
+0%
Fortnite 170−180
+0%
170−180
+0%
Forza Horizon 4 182
+0%
182
+0%
Grand Theft Auto V 137
+0%
137
+0%
Metro Exodus 98
+0%
98
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 200−210
+0%
200−210
+0%
Red Dead Redemption 2 75−80
+0%
75−80
+0%
The Witcher 3: Wild Hunt 140−150
+0%
140−150
+0%
Valorant 150−160
+0%
150−160
+0%
World of Tanks 270−280
+0%
270−280
+0%

Full HD
Ultra Preset

Battlefield 5 100−110
+0%
100−110
+0%
Counter-Strike 2 59
+0%
59
+0%
Cyberpunk 2077 56
+0%
56
+0%
Dota 2 107
+0%
107
+0%
Far Cry 5 95−100
+0%
95−100
+0%
Forza Horizon 4 157
+0%
157
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 200−210
+0%
200−210
+0%
Valorant 150−160
+0%
150−160
+0%

1440p
High Preset

Dota 2 64
+0%
64
+0%
Elden Ring 70
+0%
70
+0%
Grand Theft Auto V 64
+0%
64
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 170−180
+0%
170−180
+0%
Red Dead Redemption 2 35−40
+0%
35−40
+0%
World of Tanks 240−250
+0%
240−250
+0%

1440p
Ultra Preset

Battlefield 5 70−75
+0%
70−75
+0%
Counter-Strike 2 33
+0%
33
+0%
Cyberpunk 2077 32
+0%
32
+0%
Far Cry 5 120−130
+0%
120−130
+0%
Forza Horizon 4 101
+0%
101
+0%
Metro Exodus 97
+0%
97
+0%
The Witcher 3: Wild Hunt 65−70
+0%
65−70
+0%
Valorant 120−130
+0%
120−130
+0%

4K
High Preset

Counter-Strike 2 20
+0%
20
+0%
Dota 2 60
+0%
60
+0%
Elden Ring 25
+0%
25
+0%
Grand Theft Auto V 60
+0%
60
+0%
Metro Exodus 29
+0%
29
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 120−130
+0%
120−130
+0%
Red Dead Redemption 2 24−27
+0%
24−27
+0%
The Witcher 3: Wild Hunt 60
+0%
60
+0%

4K
Ultra Preset

Battlefield 5 45−50
+0%
45−50
+0%
Counter-Strike 2 40−45
+0%
40−45
+0%
Cyberpunk 2077 12
+0%
12
+0%
Dota 2 85
+0%
85
+0%
Far Cry 5 55−60
+0%
55−60
+0%
Fortnite 55−60
+0%
55−60
+0%
Forza Horizon 4 53
+0%
53
+0%
Valorant 65−70
+0%
65−70
+0%

This is how RX 6900 and RX 6600 compete in popular games:

  • RX 6900 is 71% faster in 1080p
  • RX 6900 is 70% faster in 1440p
  • RX 6900 is 61% faster in 4K

All in all, in popular games:

  • there's a draw in 63 tests (100%)

Pros & cons summary


Performance score 69.54 39.36
Recency 28 October 2020 13 October 2021
Maximum RAM amount 16 GB 8 GB
Power consumption (TDP) 255 Watt 132 Watt

RX 6900 has a 76.7% higher aggregate performance score, and a 100% higher maximum VRAM amount.

RX 6600, on the other hand, has an age advantage of 11 months, and 93.2% lower power consumption.

The Radeon RX 6900 is our recommended choice as it beats the Radeon RX 6600 in performance tests.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon RX 6900
Radeon RX 6900
AMD Radeon RX 6600
Radeon RX 6600

Other comparisons

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Community ratings

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Questions & comments

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