GeForce GTX 660M Mac Edition vs Radeon HD 8400
Aggregate performance score
We've compared Radeon HD 8400 with GeForce GTX 660M Mac Edition, including specs and performance data.
GTX 660M Mac Edition outperforms HD 8400 by a whopping 126% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1172 | 964 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.91 | 2.16 |
| Architecture | GCN 2.0 (2013−2017) | Kepler (2012−2018) |
| GPU code name | Kalindi | GK107 |
| Market segment | Desktop | Laptop |
| Release date | 23 November 2013 (10 years ago) | 1 April 2013 (11 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 | 128 | 384 |
| Core clock speed | 400 MHz | 950 MHz |
| Number of transistors | 1,178 million | 1,270 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 25 Watt | 50 Watt |
| Texture fill rate | 3.200 | 30.40 |
| Floating-point processing power | 0.1024 TFLOPS | 0.7296 TFLOPS |
| ROPs | 4 | 16 |
| TMUs | 8 | 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 | IGP | MXM-B (3.0) |
| Width | IGP | no data |
| 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
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 | No outputs |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 (11_0) |
| Shader Model | 6.3 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2.131 | 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 | 10
−110%
| 21−24
+110%
|
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 3−4
−100%
|
6−7
+100%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 4−5
−125%
|
9−10
+125%
|
| Call of Duty: Modern Warfare | 3−4
−100%
|
6−7
+100%
|
| Cyberpunk 2077 | 3−4
−100%
|
6−7
+100%
|
| Far Cry New Dawn | 1−2
−100%
|
2−3
+100%
|
| Hitman 3 | 5−6
−100%
|
10−11
+100%
|
| Horizon Zero Dawn | 10−12
−118%
|
24−27
+118%
|
| Red Dead Redemption 2 | 0−1 | 0−1 |
| Shadow of the Tomb Raider | 6−7
−100%
|
12−14
+100%
|
| Watch Dogs: Legion | 30−33
−117%
|
65−70
+117%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 4−5
−125%
|
9−10
+125%
|
| Call of Duty: Modern Warfare | 3−4
−100%
|
6−7
+100%
|
| Cyberpunk 2077 | 3−4
−100%
|
6−7
+100%
|
| Far Cry New Dawn | 1−2
−100%
|
2−3
+100%
|
| Hitman 3 | 5−6
−100%
|
10−11
+100%
|
| Horizon Zero Dawn | 10−12
−118%
|
24−27
+118%
|
| Red Dead Redemption 2 | 0−1 | 0−1 |
| Shadow of the Tomb Raider | 6−7
−100%
|
12−14
+100%
|
| The Witcher 3: Wild Hunt | 10−11
−110%
|
21−24
+110%
|
| Watch Dogs: Legion | 30−33
−117%
|
65−70
+117%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 4−5
−125%
|
9−10
+125%
|
| Call of Duty: Modern Warfare | 3−4
−100%
|
6−7
+100%
|
| Cyberpunk 2077 | 3−4
−100%
|
6−7
+100%
|
| Hitman 3 | 5−6
−100%
|
10−11
+100%
|
| Horizon Zero Dawn | 10−12
−118%
|
24−27
+118%
|
| Shadow of the Tomb Raider | 6−7
−100%
|
12−14
+100%
|
| The Witcher 3: Wild Hunt | 10−11
−110%
|
21−24
+110%
|
| Watch Dogs: Legion | 30−33
−117%
|
65−70
+117%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 0−1 | 0−1 |
1440p
High Preset
| Far Cry New Dawn | 1−2
−100%
|
2−3
+100%
|
1440p
Ultra Preset
| Assassin's Creed Odyssey | 0−1 | 0−1 |
| Cyberpunk 2077 | 1−2
−100%
|
2−3
+100%
|
| Far Cry 5 | 1−2
−100%
|
2−3
+100%
|
| Hitman 3 | 6−7
−100%
|
12−14
+100%
|
| Horizon Zero Dawn | 3−4
−100%
|
6−7
+100%
|
| Watch Dogs: Legion | 2−3
−100%
|
4−5
+100%
|
1440p
Epic Preset
| Red Dead Redemption 2 | 3−4
−100%
|
6−7
+100%
|
4K
High Preset
| Far Cry New Dawn | 0−1 | 0−1 |
4K
Ultra Preset
| Assassin's Creed Odyssey | 1−2
−100%
|
2−3
+100%
|
| Assassin's Creed Valhalla | 0−1 | 0−1 |
4K
Epic Preset
| Red Dead Redemption 2 | 2−3
−100%
|
4−5
+100%
|
This is how HD 8400 and GTX 660M Mac Edition compete in popular games:
- GTX 660M Mac Edition is 110% faster in 1080p
Pros & cons summary
| Performance score | 0.69 | 1.56 |
| Recency | 23 November 2013 | 1 April 2013 |
| Power consumption (TDP) | 25 Watt | 50 Watt |
HD 8400 has an age advantage of 7 months, and 100% lower power consumption.
GTX 660M Mac Edition, on the other hand, has a 126.1% higher aggregate performance score.
The GeForce GTX 660M Mac Edition is our recommended choice as it beats the Radeon HD 8400 in performance tests.
Be aware that Radeon HD 8400 is a desktop card while GeForce GTX 660M Mac Edition is a notebook one.
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.
