GeForce GT 420M vs Radeon HD 6620G
Aggregate performance score
We've compared Radeon HD 6620G and GeForce GT 420M, covering specs and all relevant benchmarks.
GT 420M outperforms HD 6620G by a moderate 19% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 1090 | 1060 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.02 | 0.03 |
| Architecture | Terascale 2 (2009−2015) | Fermi (2010−2014) |
| GPU code name | Llano | N11P-GE |
| Market segment | Laptop | Laptop |
| Release date | 15 June 2011 (13 years ago) | 3 September 2010 (13 years ago) |
| Current price | $338 | $310 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
GT 420M has 50% better value for money than HD 6620G.
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 | 400 | 96 |
| CUDA cores | no data | 96 |
| Core clock speed | 400 MHz | 500 MHz |
| Number of transistors | 1000 Million | 585 million |
| Manufacturing process technology | 32 nm | 40 nm |
| Power consumption (TDP) | 35 Watt | 23 Watt |
| Texture fill rate | 8.880 | 6.0 billion/sec |
| Floating-point performance | no data | 192 gflops |
Form factor & compatibility
Information on Radeon HD 6620G and GeForce GT 420M compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. 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.
| Laptop size | medium sized | medium sized |
| Interface | IGP | PCIe 2.0 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 | System Shared | (G)DDR3 |
| Maximum RAM amount | System Shared | 1 GB |
| Memory bus width | System Shared | 128 Bit |
| Memory clock speed | System Shared | 800 MHz |
| Memory bandwidth | no data | 25.6 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 graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 API |
| Shader Model | 5.0 | 5.1 |
| OpenGL | 4.4 | 4.5 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | N/A | N/A |
| CUDA | no data | + |
Synthetic benchmark performance
Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
GeForce GT 420M outperforms Radeon HD 6620G by 19% based on our aggregate benchmark results.
Passmark
This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Benchmark coverage: 25%
GeForce GT 420M outperforms Radeon HD 6620G by 19% in Passmark.
3DMark 11 Performance GPU
3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.
Benchmark coverage: 17%
GeForce GT 420M outperforms Radeon HD 6620G by 5% in 3DMark 11 Performance GPU.
3DMark Vantage Performance
3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.
Benchmark coverage: 17%
GeForce GT 420M outperforms Radeon HD 6620G by 25% in 3DMark Vantage Performance.
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:
| 900p | 10−12
−20%
| 12
+20%
|
| Full HD | 13
−15.4%
| 15
+15.4%
|
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 1−2
+0%
|
1−2
+0%
|
| Call of Duty: Modern Warfare | 3−4
−33.3%
|
4−5
+33.3%
|
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
| Far Cry 5 | 0−1 | 1−2 |
| Far Cry New Dawn | 2−3
+0%
|
2−3
+0%
|
| Forza Horizon 4 | 1−2
−100%
|
2−3
+100%
|
| Hitman 3 | 2−3
−50%
|
3−4
+50%
|
| Horizon Zero Dawn | 12−14
+0%
|
12−14
+0%
|
| Red Dead Redemption 2 | 1−2
+0%
|
1−2
+0%
|
| Shadow of the Tomb Raider | 8−9
+0%
|
8−9
+0%
|
| Watch Dogs: Legion | 10−11
−10%
|
10−12
+10%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 1−2
+0%
|
1−2
+0%
|
| Call of Duty: Modern Warfare | 3−4
−33.3%
|
4−5
+33.3%
|
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
| Far Cry 5 | 0−1 | 1−2 |
| Far Cry New Dawn | 2−3
+0%
|
2−3
+0%
|
| Forza Horizon 4 | 1−2
−100%
|
2−3
+100%
|
| Hitman 3 | 2−3
−50%
|
3−4
+50%
|
| Horizon Zero Dawn | 12−14
+0%
|
12−14
+0%
|
| Red Dead Redemption 2 | 1−2
+0%
|
1−2
+0%
|
| Shadow of the Tomb Raider | 8−9
+0%
|
8−9
+0%
|
| The Witcher 3: Wild Hunt | 4−5
+0%
|
4−5
+0%
|
| Watch Dogs: Legion | 10−11
−10%
|
10−12
+10%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 1−2
+0%
|
1−2
+0%
|
| Call of Duty: Modern Warfare | 3−4
−33.3%
|
4−5
+33.3%
|
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
| Far Cry 5 | 0−1 | 1−2 |
| Forza Horizon 4 | 1−2
−100%
|
2−3
+100%
|
| Horizon Zero Dawn | 12−14
+0%
|
12−14
+0%
|
| Shadow of the Tomb Raider | 8−9
+0%
|
8−9
+0%
|
| The Witcher 3: Wild Hunt | 4−5
+0%
|
4−5
+0%
|
| Watch Dogs: Legion | 10−11
−10%
|
10−12
+10%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 1−2
+0%
|
1−2
+0%
|
1440p
High Preset
| Battlefield 5 | 0−1 | 1−2 |
| Far Cry New Dawn | 0−1 | 0−1 |
1440p
Ultra Preset
| Assassin's Creed Odyssey | 0−1 | 0−1 |
| Call of Duty: Modern Warfare | 4−5
+0%
|
4−5
+0%
|
| Cyberpunk 2077 | 1−2
+0%
|
1−2
+0%
|
| Far Cry 5 | 1−2
−100%
|
2−3
+100%
|
| Forza Horizon 4 | 0−1 | 0−1 |
| Hitman 3 | 7−8
+0%
|
7−8
+0%
|
| Horizon Zero Dawn | 4−5
+0%
|
4−5
+0%
|
| The Witcher 3: Wild Hunt | 0−1 | 0−1 |
1440p
Epic Preset
| Red Dead Redemption 2 | 3−4
−33.3%
|
4−5
+33.3%
|
4K
High Preset
| Far Cry New Dawn | 0−1 | 0−1 |
| Horizon Zero Dawn | 1−2
+0%
|
1−2
+0%
|
4K
Ultra Preset
| Assassin's Creed Odyssey | 1−2
+0%
|
1−2
+0%
|
| Assassin's Creed Valhalla | 0−1 | 0−1 |
| Far Cry 5 | 0−1 | 0−1 |
| Horizon Zero Dawn | 1−2
+0%
|
1−2
+0%
|
| Metro Exodus | 4−5
+0%
|
4−5
+0%
|
4K
Epic Preset
| Red Dead Redemption 2 | 2−3
+0%
|
2−3
+0%
|
4K
Ultra Preset
| Call of Duty: Modern Warfare | 0−1 | 0−1 |
This is how HD 6620G and GT 420M compete in popular games:
- GT 420M is 20% faster in 900p
- GT 420M is 15% faster in 1080p
Here's the range of performance differences observed across popular games:
- in Forza Horizon 4, with 1080p resolution and the Medium Preset, the GT 420M is 100% faster.
All in all, in popular games:
- GT 420M is ahead in 13 tests (31%)
- there's a draw in 29 tests (69%)
Pros & cons summary
| Performance score | 0.88 | 1.05 |
| Recency | 15 June 2011 | 3 September 2010 |
| Chip lithography | 32 nm | 40 nm |
| Power consumption (TDP) | 35 Watt | 23 Watt |
The GeForce GT 420M is our recommended choice as it beats the Radeon HD 6620G 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.
