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.
660M Mac Edition outperforms HD 8400 by a whopping 130% 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 | 1238 | 1020 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.98 | 2.27 |
| Architecture | GCN 2.0 (2013−2017) | Kepler (2012−2018) |
| GPU code name | Kalindi | GK107 |
| Market segment | Desktop | Laptop |
| Release date | 23 November 2013 (11 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 | 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 |
| L1 Cache | no data | 32 KB |
| L2 Cache | no data | 256 KB |
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
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 support
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
| Cyberpunk 2077 | 1−2
−100%
|
2−3
+100%
|
| Hogwarts Legacy | 5−6
−100%
|
10−11
+100%
|
Full HD
Medium
| Cyberpunk 2077 | 1−2
−100%
|
2−3
+100%
|
| Far Cry 5 | 0−1 | 0−1 |
| Forza Horizon 4 | 5−6
−100%
|
10−11
+100%
|
| Hogwarts Legacy | 5−6
−100%
|
10−11
+100%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−125%
|
18−20
+125%
|
| Valorant | 27−30
−114%
|
60−65
+114%
|
Full HD
High
| Counter-Strike: Global Offensive | 19
−111%
|
40−45
+111%
|
| Cyberpunk 2077 | 1−2
−100%
|
2−3
+100%
|
| Dota 2 | 9
−100%
|
18−20
+100%
|
| Far Cry 5 | 0−1 | 0−1 |
| Forza Horizon 4 | 5−6
−100%
|
10−11
+100%
|
| Hogwarts Legacy | 5−6
−100%
|
10−11
+100%
|
| Metro Exodus | 1−2
−100%
|
2−3
+100%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−125%
|
18−20
+125%
|
| The Witcher 3: Wild Hunt | 5−6
−100%
|
10−11
+100%
|
| Valorant | 27−30
−114%
|
60−65
+114%
|
Full HD
Ultra
| Cyberpunk 2077 | 1−2
−100%
|
2−3
+100%
|
| Dota 2 | 8
−125%
|
18−20
+125%
|
| Far Cry 5 | 0−1 | 0−1 |
| Forza Horizon 4 | 5−6
−100%
|
10−11
+100%
|
| Hogwarts Legacy | 5−6
−100%
|
10−11
+100%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−125%
|
18−20
+125%
|
| The Witcher 3: Wild Hunt | 5−6
−100%
|
10−11
+100%
|
| Valorant | 27−30
−114%
|
60−65
+114%
|
1440p
High
| Counter-Strike 2 | 3−4
−100%
|
6−7
+100%
|
| Counter-Strike: Global Offensive | 3−4
−100%
|
6−7
+100%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 6−7
−100%
|
12−14
+100%
|
1440p
Ultra
| Forza Horizon 4 | 2−3
−100%
|
4−5
+100%
|
| Hogwarts Legacy | 0−1 | 0−1 |
| The Witcher 3: Wild Hunt | 1−2
−100%
|
2−3
+100%
|
1440p
Epic
| Fortnite | 1−2
−100%
|
2−3
+100%
|
4K
High
| Grand Theft Auto V | 14−16
−114%
|
30−33
+114%
|
| Valorant | 3−4
−100%
|
6−7
+100%
|
4K
Ultra
| PLAYERUNKNOWN'S BATTLEGROUNDS | 2−3
−100%
|
4−5
+100%
|
4K
Epic
| Fortnite | 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 | 0.61 | 1.40 |
| 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 129.5% 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 graphics card while GeForce GTX 660M Mac Edition is a notebook one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
