GeForce GTX 660M Mac Edition vs Radeon HD 6950M
Aggregate performance score
We've compared Radeon HD 6950M and GeForce GTX 660M Mac Edition, covering specs and all relevant benchmarks.
HD 6950M outperforms GTX 660M Mac Edition by a whopping 127% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 721 | 968 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 4.90 | 2.15 |
| Architecture | TeraScale 2 (2009−2015) | Kepler (2012−2018) |
| GPU code name | Blackcomb | GK107 |
| Market segment | Laptop | Laptop |
| Release date | 4 January 2011 (13 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 | 960 | 384 |
| Core clock speed | 580 MHz | 950 MHz |
| Number of transistors | 1,700 million | 1,270 million |
| Manufacturing process technology | 40 nm | 28 nm |
| Power consumption (TDP) | 50 Watt | 50 Watt |
| Texture fill rate | 27.84 | 30.40 |
| Floating-point processing power | 1.114 TFLOPS | 0.7296 TFLOPS |
| ROPs | 32 | 16 |
| TMUs | 48 | 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 | large | no data |
| Interface | MXM-B (3.0) | 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 | GDDR5 | GDDR5 |
| Maximum RAM amount | 1 GB | 512 MB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 900 MHz | 1250 MHz |
| Memory bandwidth | 115.2 GB/s | 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 | 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.
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 6−7
+200%
|
2−3
−200%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 10−11
+150%
|
4−5
−150%
|
| Assassin's Creed Valhalla | 2−3 | 0−1 |
| Battlefield 5 | 7−8
+133%
|
3−4
−133%
|
| Call of Duty: Modern Warfare | 8−9
+167%
|
3−4
−167%
|
| Cyberpunk 2077 | 6−7
+200%
|
2−3
−200%
|
| Far Cry 5 | 7−8
+133%
|
3−4
−133%
|
| Far Cry New Dawn | 10−11
+150%
|
4−5
−150%
|
| Forza Horizon 4 | 20−22
+150%
|
8−9
−150%
|
| Hitman 3 | 9−10
+200%
|
3−4
−200%
|
| Horizon Zero Dawn | 24−27
+150%
|
10−11
−150%
|
| Metro Exodus | 6−7
+200%
|
2−3
−200%
|
| Red Dead Redemption 2 | 9−10
+200%
|
3−4
−200%
|
| Shadow of the Tomb Raider | 14−16
+133%
|
6−7
−133%
|
| Watch Dogs: Legion | 40−45
+128%
|
18−20
−128%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 10−11
+150%
|
4−5
−150%
|
| Assassin's Creed Valhalla | 2−3 | 0−1 |
| Battlefield 5 | 7−8
+133%
|
3−4
−133%
|
| Call of Duty: Modern Warfare | 8−9
+167%
|
3−4
−167%
|
| Cyberpunk 2077 | 6−7
+200%
|
2−3
−200%
|
| Far Cry 5 | 7−8
+133%
|
3−4
−133%
|
| Far Cry New Dawn | 10−11
+150%
|
4−5
−150%
|
| Forza Horizon 4 | 20−22
+150%
|
8−9
−150%
|
| Hitman 3 | 9−10
+200%
|
3−4
−200%
|
| Horizon Zero Dawn | 24−27
+150%
|
10−11
−150%
|
| Metro Exodus | 6−7
+200%
|
2−3
−200%
|
| Red Dead Redemption 2 | 9−10
+200%
|
3−4
−200%
|
| Shadow of the Tomb Raider | 14−16
+133%
|
6−7
−133%
|
| The Witcher 3: Wild Hunt | 14−16
+150%
|
6−7
−150%
|
| Watch Dogs: Legion | 40−45
+128%
|
18−20
−128%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 10−11
+150%
|
4−5
−150%
|
| Assassin's Creed Valhalla | 2−3 | 0−1 |
| Call of Duty: Modern Warfare | 8−9
+167%
|
3−4
−167%
|
| Cyberpunk 2077 | 6−7
+200%
|
2−3
−200%
|
| Far Cry 5 | 7−8
+133%
|
3−4
−133%
|
| Forza Horizon 4 | 20−22
+150%
|
8−9
−150%
|
| Hitman 3 | 9−10
+200%
|
3−4
−200%
|
| Horizon Zero Dawn | 24−27
+150%
|
10−11
−150%
|
| Shadow of the Tomb Raider | 14−16
+133%
|
6−7
−133%
|
| The Witcher 3: Wild Hunt | 14−16
+150%
|
6−7
−150%
|
| Watch Dogs: Legion | 40−45
+128%
|
18−20
−128%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 9−10
+200%
|
3−4
−200%
|
1440p
High Preset
| Battlefield 5 | 6−7
+200%
|
2−3
−200%
|
| Far Cry New Dawn | 5−6
+150%
|
2−3
−150%
|
1440p
Ultra Preset
| Assassin's Creed Odyssey | 3−4
+200%
|
1−2
−200%
|
| Call of Duty: Modern Warfare | 3−4
+200%
|
1−2
−200%
|
| Cyberpunk 2077 | 2−3 | 0−1 |
| Far Cry 5 | 4−5
+300%
|
1−2
−300%
|
| Forza Horizon 4 | 1−2 | 0−1 |
| Hitman 3 | 8−9
+167%
|
3−4
−167%
|
| Horizon Zero Dawn | 9−10
+200%
|
3−4
−200%
|
| The Witcher 3: Wild Hunt | 3−4
+200%
|
1−2
−200%
|
| Watch Dogs: Legion | 21−24
+144%
|
9−10
−144%
|
1440p
Epic Preset
| Red Dead Redemption 2 | 7−8
+133%
|
3−4
−133%
|
4K
High Preset
| Battlefield 5 | 2−3 | 0−1 |
| Far Cry New Dawn | 2−3 | 0−1 |
4K
Ultra Preset
| Assassin's Creed Odyssey | 2−3 | 0−1 |
| Assassin's Creed Valhalla | 1−2 | 0−1 |
| Call of Duty: Modern Warfare | 1−2 | 0−1 |
| Cyberpunk 2077 | 0−1 | 0−1 |
| Far Cry 5 | 2−3 | 0−1 |
| Forza Horizon 4 | 1−2 | 0−1 |
| Watch Dogs: Legion | 1−2 | 0−1 |
4K
Epic Preset
| Red Dead Redemption 2 | 4−5
+300%
|
1−2
−300%
|
Pros & cons summary
| Performance score | 3.57 | 1.57 |
| Recency | 4 January 2011 | 1 April 2013 |
| Maximum RAM amount | 1 GB | 512 MB |
| Chip lithography | 40 nm | 28 nm |
HD 6950M has a 127.4% higher aggregate performance score, and a 100% higher maximum VRAM amount.
GTX 660M Mac Edition, on the other hand, has an age advantage of 2 years, and a 42.9% more advanced lithography process.
The Radeon HD 6950M is our recommended choice as it beats the GeForce GTX 660M Mac Edition 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.
