GeForce GT 640M Mac Edition vs Radeon R5 M420
Aggregated performance score
Radeon R5 M420 outperforms GeForce GT 640M Mac Edition by a moderate 16% based on our aggregated benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 996 | 1045 |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | GCN (2011−2017) | Kepler (2012−2018) |
| GPU code name | Jet | GK107 |
| Market segment | Laptop | Desktop |
| Release date | 1 June 2016 (7 years ago) | 3 February 2013 (11 years ago) |
| Current price | no data | $50 |
Detailed specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 320 | 384 |
| Core clock speed | 780 MHz | 745 MHz |
| Boost clock speed | 850 MHz | no data |
| Number of transistors | 690 million | 1,270 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | no data | 32 Watt |
| Texture fill rate | 17.00 | 23.84 |
| Floating-point performance | 547.2 gflops | 572.2 gflops |
Form factor & compatibility
Information on Radeon R5 M420 and GeForce GT 640M Mac Edition compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
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 | DDR3 | GDDR5 |
| Maximum RAM amount | 4 GB | 512 MB |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 2000 MHz | 5000 MHz |
| Memory bandwidth | 16 GB/s | 40 GB/s |
| Shared memory | - | no data |
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 graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2.131 | 1.1.126 |
| CUDA | no data | 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 | 4−5
+33.3%
|
3−4
−33.3%
|
Full HD
Medium Preset
| Call of Duty: Modern Warfare | 9−10
+28.6%
|
7−8
−28.6%
|
| Cyberpunk 2077 | 4−5
+33.3%
|
3−4
−33.3%
|
| Forza Horizon 4 | 1−2 | 0−1 |
| Hitman 3 | 1−2 | 0−1 |
| Horizon Zero Dawn | 1−2 | 0−1 |
| Red Dead Redemption 2 | 3−4
+50%
|
2−3
−50%
|
| Shadow of the Tomb Raider | 7−8
+16.7%
|
6−7
−16.7%
|
Full HD
High Preset
| Call of Duty: Modern Warfare | 9−10
+28.6%
|
7−8
−28.6%
|
| Cyberpunk 2077 | 4−5
+33.3%
|
3−4
−33.3%
|
| Forza Horizon 4 | 1−2 | 0−1 |
| Hitman 3 | 1−2 | 0−1 |
| Horizon Zero Dawn | 1−2 | 0−1 |
| Metro Exodus | 2−3
+100%
|
1−2
−100%
|
| Red Dead Redemption 2 | 3−4
+50%
|
2−3
−50%
|
| Shadow of the Tomb Raider | 7−8
+16.7%
|
6−7
−16.7%
|
| The Witcher 3: Wild Hunt | 4−5
+33.3%
|
3−4
−33.3%
|
Full HD
Ultra Preset
| Cyberpunk 2077 | 4−5
+33.3%
|
3−4
−33.3%
|
| Forza Horizon 4 | 1−2 | 0−1 |
| The Witcher 3: Wild Hunt | 4−5
+33.3%
|
3−4
−33.3%
|
1440p
High Preset
| Call of Duty: Modern Warfare | 3−4
+50%
|
2−3
−50%
|
| Hitman 3 | 4−5
+33.3%
|
3−4
−33.3%
|
| Horizon Zero Dawn | 8−9
+33.3%
|
6−7
−33.3%
|
| Shadow of the Tomb Raider | 5−6
+25%
|
4−5
−25%
|
1440p
Ultra Preset
| Cyberpunk 2077 | 1−2 | 0−1 |
| Far Cry 5 | 2−3
+100%
|
1−2
−100%
|
| The Witcher 3: Wild Hunt | 1−2 | 0−1 |
4K
High Preset
| Call of Duty: Modern Warfare | 1−2 | 0−1 |
| Hitman 3 | 1−2 | 0−1 |
| Horizon Zero Dawn | 7−8
+16.7%
|
6−7
−16.7%
|
| Red Dead Redemption 2 | 0−1 | 0−1 |
4K
Ultra Preset
| Assassin's Creed Odyssey | 0−1 | 0−1 |
| Assassin's Creed Valhalla | 0−1 | 0−1 |
| Far Cry 5 | 3−4
+50%
|
2−3
−50%
|
| Far Cry New Dawn | 5−6
+25%
|
4−5
−25%
|
Pros & cons summary
| Performance score | 1.26 | 1.09 |
| Recency | 1 June 2016 | 3 February 2013 |
| Maximum RAM amount | 4 GB | 512 MB |
The Radeon R5 M420 is our recommended choice as it beats the GeForce GT 640M Mac Edition in performance tests.
Be aware that Radeon R5 M420 is a notebook card while GeForce GT 640M Mac Edition is a desktop 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.
