GeForce GTX 660M Mac Edition vs Radeon HD 6620G
Aggregate performance score
We've compared Radeon HD 6620G and GeForce GTX 660M Mac Edition, covering specs and all relevant benchmarks.
GTX 660M Mac Edition outperforms HD 6620G by an impressive 81% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1178 | 1006 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.76 | 2.24 |
| Architecture | TeraScale 2 (2009−2015) | Kepler (2012−2018) |
| GPU code name | Sumo | GK107 |
| Market segment | Laptop | Laptop |
| Release date | 7 December 2011 (13 years ago) | 1 April 2013 (12 years 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 | 400 | 384 |
| Core clock speed | 444 MHz | 950 MHz |
| Number of transistors | 1,178 million | 1,270 million |
| Manufacturing process technology | 32 nm | 28 nm |
| Power consumption (TDP) | 35 Watt | 50 Watt |
| Texture fill rate | 8.880 | 30.40 |
| Floating-point processing power | 0.3552 TFLOPS | 0.7296 TFLOPS |
| ROPs | 8 | 16 |
| TMUs | 20 | 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).
| Laptop size | medium sized | no data |
| Interface | IGP | MXM-B (3.0) |
| Supplementary power connectors | no data | 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 | System Shared | GDDR5 |
| Maximum RAM amount | System Shared | 512 MB |
| Memory bus width | System Shared | 128 Bit |
| Memory clock speed | System Shared | 1250 MHz |
| Memory bandwidth | no data | 80 GB/s |
| Shared memory | + | - |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | No outputs |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 (11_0) |
| Shader Model | 5.0 | 5.1 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | N/A | 1.1.126 |
| CUDA | - | 3.0 |
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 | 13
−61.5%
| 21−24
+61.5%
|
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 2−3
−50%
|
3−4
+50%
|
| God of War | 5−6
−80%
|
9−10
+80%
|
Full HD
Medium Preset
| Cyberpunk 2077 | 2−3
−50%
|
3−4
+50%
|
| Far Cry 5 | 1−2
+0%
|
1−2
+0%
|
| Forza Horizon 4 | 6−7
−66.7%
|
10−11
+66.7%
|
| God of War | 5−6
−80%
|
9−10
+80%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−75%
|
14−16
+75%
|
| Valorant | 27−30
−72.4%
|
50−55
+72.4%
|
Full HD
High Preset
| Counter-Strike: Global Offensive | 21−24
−59.1%
|
35−40
+59.1%
|
| Cyberpunk 2077 | 2−3
−50%
|
3−4
+50%
|
| Dota 2 | 12−14
−61.5%
|
21−24
+61.5%
|
| Far Cry 5 | 1−2
+0%
|
1−2
+0%
|
| Forza Horizon 4 | 6−7
−66.7%
|
10−11
+66.7%
|
| God of War | 5−6
−80%
|
9−10
+80%
|
| Metro Exodus | 1−2
+0%
|
1−2
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−75%
|
14−16
+75%
|
| The Witcher 3: Wild Hunt | 6−7
−66.7%
|
10−11
+66.7%
|
| Valorant | 27−30
−72.4%
|
50−55
+72.4%
|
Full HD
Ultra Preset
| Cyberpunk 2077 | 2−3
−50%
|
3−4
+50%
|
| Dota 2 | 12−14
−61.5%
|
21−24
+61.5%
|
| Far Cry 5 | 1−2
+0%
|
1−2
+0%
|
| Forza Horizon 4 | 6−7
−66.7%
|
10−11
+66.7%
|
| God of War | 5−6
−80%
|
9−10
+80%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−75%
|
14−16
+75%
|
| The Witcher 3: Wild Hunt | 6−7
−66.7%
|
10−11
+66.7%
|
| Valorant | 27−30
−72.4%
|
50−55
+72.4%
|
1440p
High Preset
| Counter-Strike 2 | 3−4
−66.7%
|
5−6
+66.7%
|
| Counter-Strike: Global Offensive | 4−5
−75%
|
7−8
+75%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
−77.8%
|
16−18
+77.8%
|
1440p
Ultra Preset
| Forza Horizon 4 | 2−3
−50%
|
3−4
+50%
|
1440p
Epic Preset
| Fortnite | 1−2
+0%
|
1−2
+0%
|
4K
High Preset
| Grand Theft Auto V | 14−16
−80%
|
27−30
+80%
|
| Valorant | 4−5
−75%
|
7−8
+75%
|
4K
Ultra Preset
| God of War | 0−1 | 0−1 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 2−3
−50%
|
3−4
+50%
|
4K
Epic Preset
| Fortnite | 2−3
−50%
|
3−4
+50%
|
This is how HD 6620G and GTX 660M Mac Edition compete in popular games:
- GTX 660M Mac Edition is 62% faster in 1080p
Pros & cons summary
| Performance score | 0.81 | 1.47 |
| Recency | 7 December 2011 | 1 April 2013 |
| Chip lithography | 32 nm | 28 nm |
| Power consumption (TDP) | 35 Watt | 50 Watt |
HD 6620G has 42.9% lower power consumption.
GTX 660M Mac Edition, on the other hand, has a 81.5% higher aggregate performance score, an age advantage of 1 year, and a 14.3% more advanced lithography process.
The GeForce GTX 660M Mac Edition is our recommended choice as it beats the Radeon HD 6620G in performance tests.
Other comparisons
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