Radeon RX 6600 XT vs RX 6900 XT
Aggregate performance score
We've compared Radeon RX 6900 XT and Radeon RX 6600 XT, covering specs and all relevant benchmarks.
RX 6900 XT outperforms RX 6600 XT by an impressive 62% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 25 | 92 |
| Place by popularity | not in top-100 | 75 |
| Cost-effectiveness evaluation | 30.00 | 62.21 |
| Power efficiency | 15.90 | 18.39 |
| Architecture | RDNA 2.0 (2020−2024) | RDNA 2.0 (2020−2024) |
| GPU code name | Navi 21 | Navi 23 |
| Market segment | Desktop | Desktop |
| Release date | 28 October 2020 (4 years ago) | 30 July 2021 (3 years ago) |
| Launch price (MSRP) | $999 | $379 |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
RX 6600 XT has 107% better value for money than RX 6900 XT.
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 cores | 5120 | 2048 |
| Core clock speed | 1825 MHz | 1968 MHz |
| Boost clock speed | 2250 MHz | 2589 MHz |
| Number of transistors | 26,800 million | 11,060 million |
| Manufacturing process technology | 7 nm | 7 nm |
| Power consumption (TDP) | 300 Watt | 160 Watt |
| Texture fill rate | 720.0 | 331.4 |
| Floating-point processing power | 23.04 TFLOPS | 10.6 TFLOPS |
| ROPs | 128 | 64 |
| TMUs | 320 | 128 |
| Ray Tracing Cores | 80 | 32 |
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).
| Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |
| Length | 267 mm | 190 mm |
| Width | 3-slot | 2-slot |
| Supplementary power connectors | 2x 8-pin | 1x 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 type | GDDR6 | GDDR6 |
| Maximum RAM amount | 16 GB | 8 GB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 2000 MHz | 2000 MHz |
| Memory bandwidth | 512.0 GB/s | 256.0 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 Connectors | 1x HDMI, 2x DisplayPort, 1x USB Type-C | 1x HDMI, 2x DisplayPort |
| HDMI | + | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12.0 Ultimate (12_2) |
| Shader Model | 6.5 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.2 | 1.2 |
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.
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.
3DMark 11 Performance GPU
3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.
3DMark Fire Strike Graphics
Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.
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 HD | 194
+47%
| 132
−47%
|
| 1440p | 135
+80%
| 75
−80%
|
| 4K | 86
+100%
| 43
−100%
|
Cost per frame, $
| 1080p | 5.15
−79.3%
| 2.87
+79.3%
|
| 1440p | 7.40
−46.4%
| 5.05
+46.4%
|
| 4K | 11.62
−31.8%
| 8.81
+31.8%
|
- RX 6600 XT has 79% lower cost per frame in 1080p
- RX 6600 XT has 46% lower cost per frame in 1440p
- RX 6600 XT has 32% lower cost per frame in 4K
FPS performance in popular games
Full HD
Low Preset
| Atomic Heart | 190−200
+65.8%
|
120−130
−65.8%
|
| Counter-Strike 2 | 160−170
+36.7%
|
120
−36.7%
|
| Cyberpunk 2077 | 160−170
+104%
|
79
−104%
|
Full HD
Medium Preset
| Atomic Heart | 190−200
+65.8%
|
120−130
−65.8%
|
| Battlefield 5 | 195
+45.5%
|
130−140
−45.5%
|
| Counter-Strike 2 | 160−170
+78.3%
|
90−95
−78.3%
|
| Cyberpunk 2077 | 160−170
+106%
|
78
−106%
|
| Far Cry 5 | 170−180
+15.2%
|
151
−15.2%
|
| Fortnite | 300−350
+76.6%
|
170−180
−76.6%
|
| Forza Horizon 4 | 283
+85%
|
150−160
−85%
|
| Forza Horizon 5 | 180−190
+52%
|
123
−52%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180
+14.2%
|
150−160
−14.2%
|
| Valorant | 350−400
+57.6%
|
220−230
−57.6%
|
Full HD
High Preset
| Atomic Heart | 190−200
+65.8%
|
120−130
−65.8%
|
| Battlefield 5 | 196
+46.3%
|
130−140
−46.3%
|
| Counter-Strike 2 | 160−170
+78.3%
|
90−95
−78.3%
|
| Counter-Strike: Global Offensive | 270−280
+0%
|
270−280
+0%
|
| Cyberpunk 2077 | 160−170
+112%
|
76
−112%
|
| Dota 2 | 160−170
−0.6%
|
170
+0.6%
|
| Far Cry 5 | 170−180
+23.4%
|
141
−23.4%
|
| Fortnite | 300−350
+76.6%
|
170−180
−76.6%
|
| Forza Horizon 4 | 279
+82.4%
|
150−160
−82.4%
|
| Forza Horizon 5 | 180−190
+62.6%
|
115
−62.6%
|
| Grand Theft Auto V | 160−170
+23.7%
|
135
−23.7%
|
| Metro Exodus | 164
+72.6%
|
95
−72.6%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180
+14.2%
|
150−160
−14.2%
|
| The Witcher 3: Wild Hunt | 323
+83.5%
|
176
−83.5%
|
| Valorant | 350−400
+57.6%
|
220−230
−57.6%
|
Full HD
Ultra Preset
| Battlefield 5 | 197
+47%
|
130−140
−47%
|
| Counter-Strike 2 | 160−170
+145%
|
67
−145%
|
| Cyberpunk 2077 | 160−170
+133%
|
69
−133%
|
| Dota 2 | 160−170
+40.8%
|
120
−40.8%
|
| Far Cry 5 | 170−180
+30.8%
|
133
−30.8%
|
| Forza Horizon 4 | 248
+62.1%
|
150−160
−62.1%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180
+14.2%
|
150−160
−14.2%
|
| The Witcher 3: Wild Hunt | 164
+65.7%
|
99
−65.7%
|
| Valorant | 411
+79.5%
|
220−230
−79.5%
|
Full HD
Epic Preset
| Fortnite | 300−350
+76.6%
|
170−180
−76.6%
|
1440p
High Preset
| Counter-Strike 2 | 60−65
+96.9%
|
30−35
−96.9%
|
| Counter-Strike: Global Offensive | 450−500
+80.9%
|
270−280
−80.9%
|
| Grand Theft Auto V | 130−140
+98.5%
|
68
−98.5%
|
| Metro Exodus | 102
+82.1%
|
56
−82.1%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180
+0%
|
170−180
+0%
|
| Valorant | 400−450
+68.1%
|
260−270
−68.1%
|
1440p
Ultra Preset
| Battlefield 5 | 196
+94.1%
|
100−110
−94.1%
|
| Cyberpunk 2077 | 90−95
+128%
|
40
−128%
|
| Far Cry 5 | 150−160
+47.6%
|
105
−47.6%
|
| Forza Horizon 4 | 231
+103%
|
110−120
−103%
|
| The Witcher 3: Wild Hunt | 150−160
+98.7%
|
75−80
−98.7%
|
1440p
Epic Preset
| Fortnite | 150−160
+43.8%
|
100−110
−43.8%
|
4K
High Preset
| Atomic Heart | 55−60
+84.4%
|
30−35
−84.4%
|
| Counter-Strike 2 | 40−45
+120%
|
20−22
−120%
|
| Grand Theft Auto V | 150−160
+144%
|
64
−144%
|
| Metro Exodus | 67
+97.1%
|
34
−97.1%
|
| The Witcher 3: Wild Hunt | 122
+126%
|
54
−126%
|
| Valorant | 300−350
+37.3%
|
240−250
−37.3%
|
4K
Ultra Preset
| Battlefield 5 | 134
+113%
|
60−65
−113%
|
| Counter-Strike 2 | 40−45
+450%
|
8
−450%
|
| Cyberpunk 2077 | 40−45
+214%
|
14
−214%
|
| Dota 2 | 150−160
+84.9%
|
86
−84.9%
|
| Far Cry 5 | 100−110
+100%
|
51
−100%
|
| Forza Horizon 4 | 162
+113%
|
75−80
−113%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 95−100
+74.5%
|
55−60
−74.5%
|
4K
Epic Preset
| Fortnite | 75−80
+51.9%
|
50−55
−51.9%
|
Full HD
Ultra Preset
| Forza Horizon 5 | 97
+0%
|
97
+0%
|
1440p
Ultra Preset
| Forza Horizon 5 | 71
+0%
|
71
+0%
|
4K
Ultra Preset
| Forza Horizon 5 | 36
+0%
|
36
+0%
|
This is how RX 6900 XT and RX 6600 XT compete in popular games:
- RX 6900 XT is 47% faster in 1080p
- RX 6900 XT is 80% faster in 1440p
- RX 6900 XT is 100% faster in 4K
Here's the range of performance differences observed across popular games:
- in Counter-Strike 2, with 4K resolution and the Ultra Preset, the RX 6900 XT is 450% faster.
- in Dota 2, with 1080p resolution and the High Preset, the RX 6600 XT is 1% faster.
All in all, in popular games:
- RX 6900 XT is ahead in 61 test (91%)
- RX 6600 XT is ahead in 1 test (1%)
- there's a draw in 5 tests (7%)
Pros & cons summary
| Performance score | 69.13 | 42.65 |
| Recency | 28 October 2020 | 30 July 2021 |
| Maximum RAM amount | 16 GB | 8 GB |
| Power consumption (TDP) | 300 Watt | 160 Watt |
RX 6900 XT has a 62.1% higher aggregate performance score, and a 100% higher maximum VRAM amount.
RX 6600 XT, on the other hand, has an age advantage of 9 months, and 87.5% lower power consumption.
The Radeon RX 6900 XT is our recommended choice as it beats the Radeon RX 6600 XT in performance tests.
Other comparisons
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