Radeon RX 7900M vs RX 6600M
Aggregate performance score
We've compared Radeon RX 6600M and Radeon RX 7900M, covering specs and all relevant benchmarks.
RX 7900M outperforms RX 6600M by an impressive 63% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 136 | 38 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 24.68 | 22.42 |
| Architecture | RDNA 2.0 (2020−2024) | RDNA 3.0 (2022−2024) |
| GPU code name | Navi 23 | Navi 31 |
| Market segment | Laptop | Laptop |
| Release date | 31 May 2021 (3 years ago) | 19 October 2023 (1 year ago) |
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 | 1792 | 4608 |
| Core clock speed | 2068 MHz | 1825 MHz |
| Boost clock speed | 2416 MHz | 2090 MHz |
| Number of transistors | 11,060 million | 57,700 million |
| Manufacturing process technology | 7 nm | 5 nm |
| Power consumption (TDP) | 100 Watt | 180 Watt |
| Texture fill rate | 270.6 | 601.9 |
| Floating-point processing power | 8.659 TFLOPS | 38.52 TFLOPS |
| ROPs | 64 | 192 |
| TMUs | 112 | 288 |
| Ray Tracing Cores | 28 | 72 |
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).
| Laptop size | medium sized | large |
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| Supplementary power connectors | None | None |
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 | 8 GB | 16 GB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 1750 MHz | 2250 MHz |
| Memory bandwidth | 224.0 GB/s | 576.0 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 | No outputs | Portable Device Dependent |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| Shader Model | 6.5 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.2 |
| Vulkan | 1.3 | 1.3 |
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.
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.
3DMark Time Spy Graphics
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 | 98
−63.3%
| 160
+63.3%
|
| 1440p | 55
−113%
| 117
+113%
|
| 4K | 31
−155%
| 79
+155%
|
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 110
−54.5%
|
170−180
+54.5%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 108
−10.2%
|
110−120
+10.2%
|
| Assassin's Creed Valhalla | 95
−5.3%
|
100−105
+5.3%
|
| Battlefield 5 | 110−120
−58.3%
|
180−190
+58.3%
|
| Call of Duty: Modern Warfare | 70−75
−50%
|
100−110
+50%
|
| Cyberpunk 2077 | 90
−55.6%
|
140−150
+55.6%
|
| Far Cry 5 | 75−80
−39.7%
|
100−110
+39.7%
|
| Far Cry New Dawn | 85−90
−55.1%
|
130−140
+55.1%
|
| Forza Horizon 4 | 180−190
−23.1%
|
220−230
+23.1%
|
| Hitman 3 | 75−80
−57.3%
|
110−120
+57.3%
|
| Horizon Zero Dawn | 150−160
−44.4%
|
210−220
+44.4%
|
| Metro Exodus | 110−120
−31.9%
|
150−160
+31.9%
|
| Red Dead Redemption 2 | 85−90
−34.1%
|
110−120
+34.1%
|
| Shadow of the Tomb Raider | 120−130
−80.3%
|
220−230
+80.3%
|
| Watch Dogs: Legion | 120−130
−19.5%
|
140−150
+19.5%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 199
+67.2%
|
110−120
−67.2%
|
| Assassin's Creed Valhalla | 79
−26.6%
|
100−105
+26.6%
|
| Battlefield 5 | 110−120
−58.3%
|
180−190
+58.3%
|
| Call of Duty: Modern Warfare | 70−75
−50%
|
100−110
+50%
|
| Cyberpunk 2077 | 72
−52.8%
|
110−120
+52.8%
|
| Far Cry 5 | 75−80
−39.7%
|
100−110
+39.7%
|
| Far Cry New Dawn | 85−90
−55.1%
|
130−140
+55.1%
|
| Forza Horizon 4 | 180−190
−23.1%
|
220−230
+23.1%
|
| Hitman 3 | 75−80
−57.3%
|
110−120
+57.3%
|
| Horizon Zero Dawn | 150−160
−44.4%
|
210−220
+44.4%
|
| Metro Exodus | 110−120
−31.9%
|
150−160
+31.9%
|
| Red Dead Redemption 2 | 85−90
−34.1%
|
110−120
+34.1%
|
| Shadow of the Tomb Raider | 173
−32.4%
|
220−230
+32.4%
|
| The Witcher 3: Wild Hunt | 70−75
−60.8%
|
110−120
+60.8%
|
| Watch Dogs: Legion | 120−130
−19.5%
|
140−150
+19.5%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 79
−50.6%
|
110−120
+50.6%
|
| Assassin's Creed Valhalla | 69
−44.9%
|
100−105
+44.9%
|
| Call of Duty: Modern Warfare | 70−75
−50%
|
100−110
+50%
|
| Cyberpunk 2077 | 61
−55.7%
|
95−100
+55.7%
|
| Far Cry 5 | 75−80
−39.7%
|
100−110
+39.7%
|
| Forza Horizon 4 | 168
−33.3%
|
220−230
+33.3%
|
| Hitman 3 | 75−80
−57.3%
|
110−120
+57.3%
|
| Horizon Zero Dawn | 134
−62.7%
|
210−220
+62.7%
|
| Shadow of the Tomb Raider | 153
−125%
|
344
+125%
|
| The Witcher 3: Wild Hunt | 85
−97.6%
|
168
+97.6%
|
| Watch Dogs: Legion | 59
−149%
|
140−150
+149%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 85−90
−34.1%
|
110−120
+34.1%
|
1440p
High Preset
| Battlefield 5 | 65−70
−80.9%
|
120−130
+80.9%
|
| Far Cry New Dawn | 50−55
−64.8%
|
85−90
+64.8%
|
1440p
Ultra Preset
| Assassin's Creed Odyssey | 51
−27.5%
|
65−70
+27.5%
|
| Assassin's Creed Valhalla | 52
−32.7%
|
65−70
+32.7%
|
| Call of Duty: Modern Warfare | 40−45
−65.9%
|
65−70
+65.9%
|
| Cyberpunk 2077 | 36
−52.8%
|
55−60
+52.8%
|
| Far Cry 5 | 40−45
−63.4%
|
65−70
+63.4%
|
| Forza Horizon 4 | 200−210
−33.7%
|
270−280
+33.7%
|
| Hitman 3 | 45−50
−80%
|
80−85
+80%
|
| Horizon Zero Dawn | 98
−38.8%
|
130−140
+38.8%
|
| Metro Exodus | 85
−17.6%
|
100−105
+17.6%
|
| Shadow of the Tomb Raider | 100
−149%
|
249
+149%
|
| The Witcher 3: Wild Hunt | 62
−54.8%
|
95−100
+54.8%
|
| Watch Dogs: Legion | 180−190
−26.5%
|
220−230
+26.5%
|
1440p
Epic Preset
| Red Dead Redemption 2 | 60−65
−60.7%
|
95−100
+60.7%
|
4K
High Preset
| Battlefield 5 | 35−40
−82.9%
|
60−65
+82.9%
|
| Far Cry New Dawn | 27−30
−86.2%
|
50−55
+86.2%
|
| Hitman 3 | 27−30
−65.5%
|
45−50
+65.5%
|
| Horizon Zero Dawn | 170−180
−28.2%
|
210−220
+28.2%
|
| Metro Exodus | 40−45
−88.6%
|
80−85
+88.6%
|
| The Witcher 3: Wild Hunt | 44
−164%
|
116
+164%
|
4K
Ultra Preset
| Assassin's Creed Odyssey | 29
−51.7%
|
40−45
+51.7%
|
| Assassin's Creed Valhalla | 27
−55.6%
|
40−45
+55.6%
|
| Call of Duty: Modern Warfare | 21−24
−86.4%
|
40−45
+86.4%
|
| Cyberpunk 2077 | 14
−50%
|
21−24
+50%
|
| Far Cry 5 | 20−22
−90%
|
35−40
+90%
|
| Forza Horizon 4 | 74
−18.9%
|
85−90
+18.9%
|
| Shadow of the Tomb Raider | 52
−152%
|
131
+152%
|
| Watch Dogs: Legion | 21
−57.1%
|
30−35
+57.1%
|
4K
Epic Preset
| Red Dead Redemption 2 | 30−35
−80.6%
|
55−60
+80.6%
|
This is how RX 6600M and RX 7900M compete in popular games:
- RX 7900M is 63% faster in 1080p
- RX 7900M is 113% faster in 1440p
- RX 7900M is 155% faster in 4K
Here's the range of performance differences observed across popular games:
- in Assassin's Creed Odyssey, with 1080p resolution and the High Preset, the RX 6600M is 67% faster.
- in The Witcher 3: Wild Hunt, with 4K resolution and the High Preset, the RX 7900M is 164% faster.
All in all, in popular games:
- RX 6600M is ahead in 1 test (2%)
- RX 7900M is ahead in 65 tests (98%)
Pros & cons summary
| Performance score | 35.71 | 58.37 |
| Recency | 31 May 2021 | 19 October 2023 |
| Maximum RAM amount | 8 GB | 16 GB |
| Chip lithography | 7 nm | 5 nm |
| Power consumption (TDP) | 100 Watt | 180 Watt |
RX 6600M has 80% lower power consumption.
RX 7900M, on the other hand, has a 63.5% higher aggregate performance score, an age advantage of 2 years, a 100% higher maximum VRAM amount, and a 40% more advanced lithography process.
The Radeon RX 7900M is our recommended choice as it beats the Radeon RX 6600M in performance tests.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
