ATI Mobility Radeon HD 3670 vs R5 M420
Aggregate performance score
We've compared Radeon R5 M420 and Mobility Radeon HD 3670, covering specs and all relevant benchmarks.
R5 M420 outperforms ATI Mobility HD 3670 by a whopping 183% 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 | 1085 | 1299 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 1.07 |
| Architecture | GCN 1.0 (2012−2020) | TeraScale (2005−2013) |
| GPU code name | Jet | M86 |
| Market segment | Laptop | Laptop |
| Release date | 15 May 2016 (9 years ago) | 7 January 2008 (17 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 | 320 | 120 |
| Core clock speed | 780 MHz | 680 MHz |
| Boost clock speed | 850 MHz | no data |
| Number of transistors | 690 million | 378 million |
| Manufacturing process technology | 28 nm | 55 nm |
| Power consumption (TDP) | no data | 30 Watt |
| Texture fill rate | 17.00 | 5.440 |
| Floating-point processing power | 0.544 TFLOPS | 0.1632 TFLOPS |
| ROPs | 8 | 4 |
| TMUs | 20 | 8 |
| L1 Cache | 80 KB | no data |
| L2 Cache | 128 KB | 128 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).
| Laptop size | no data | medium sized |
| Interface | PCIe 3.0 x8 | 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 | DDR3 | GDDR3 |
| Maximum RAM amount | 4 GB | 256 MB |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 1000 MHz | 800 MHz |
| Memory bandwidth | 16 GB/s | 25.6 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 (11_1) | 10.1 (10_1) |
| Shader Model | 5.1 | 4.1 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.2.131 | N/A |
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 | 3−4
+200%
|
1−2
−200%
|
| Hogwarts Legacy | 6−7
+20%
|
5−6
−20%
|
Full HD
Medium Preset
| Battlefield 5 | 1−2 | 0−1 |
| Cyberpunk 2077 | 3−4
+200%
|
1−2
−200%
|
| Far Cry 5 | 3−4
+200%
|
1−2
−200%
|
| Fortnite | 3−4
+200%
|
1−2
−200%
|
| Forza Horizon 4 | 7−8
+75%
|
4−5
−75%
|
| Forza Horizon 5 | 1−2 | 0−1 |
| Hogwarts Legacy | 6−7
+20%
|
5−6
−20%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
+28.6%
|
7−8
−28.6%
|
| Valorant | 30−35
+22.2%
|
27−30
−22.2%
|
Full HD
High Preset
| Battlefield 5 | 1−2 | 0−1 |
| Counter-Strike: Global Offensive | 27−30
+86.7%
|
14−16
−86.7%
|
| Cyberpunk 2077 | 3−4
+200%
|
1−2
−200%
|
| Dota 2 | 16−18
+60%
|
10−11
−60%
|
| Far Cry 5 | 3−4
+200%
|
1−2
−200%
|
| Fortnite | 3−4
+200%
|
1−2
−200%
|
| Forza Horizon 4 | 7−8
+75%
|
4−5
−75%
|
| Forza Horizon 5 | 1−2 | 0−1 |
| Grand Theft Auto V | 0−1 | 0−1 |
| Hogwarts Legacy | 6−7
+20%
|
5−6
−20%
|
| Metro Exodus | 2−3 | 0−1 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
+28.6%
|
7−8
−28.6%
|
| The Witcher 3: Wild Hunt | 7−8
+40%
|
5−6
−40%
|
| Valorant | 30−35
+22.2%
|
27−30
−22.2%
|
Full HD
Ultra Preset
| Battlefield 5 | 1−2 | 0−1 |
| Cyberpunk 2077 | 3−4
+200%
|
1−2
−200%
|
| Dota 2 | 16−18
+60%
|
10−11
−60%
|
| Far Cry 5 | 3−4
+200%
|
1−2
−200%
|
| Forza Horizon 4 | 7−8
+75%
|
4−5
−75%
|
| Hogwarts Legacy | 6−7
+20%
|
5−6
−20%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
+28.6%
|
7−8
−28.6%
|
| The Witcher 3: Wild Hunt | 7−8
+40%
|
5−6
−40%
|
| Valorant | 30−35
+22.2%
|
27−30
−22.2%
|
Full HD
Epic Preset
| Fortnite | 3−4
+200%
|
1−2
−200%
|
1440p
High Preset
| Counter-Strike 2 | 3−4
+50%
|
2−3
−50%
|
| Counter-Strike: Global Offensive | 7−8
+600%
|
1−2
−600%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 12−14
+200%
|
4−5
−200%
|
| Valorant | 3−4
+200%
|
1−2
−200%
|
1440p
Ultra Preset
| Cyberpunk 2077 | 1−2 | 0−1 |
| Far Cry 5 | 1−2 | 0−1 |
| Forza Horizon 4 | 3−4
+50%
|
2−3
−50%
|
| Hogwarts Legacy | 1−2 | 0−1 |
| The Witcher 3: Wild Hunt | 2−3 | 0−1 |
1440p
Epic Preset
| Fortnite | 2−3 | 0−1 |
4K
High Preset
| Grand Theft Auto V | 14−16
+0%
|
14−16
+0%
|
| Valorant | 6−7
+200%
|
2−3
−200%
|
4K
Ultra Preset
| Dota 2 | 1−2 | 0−1 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 2−3
+0%
|
2−3
+0%
|
4K
Epic Preset
| Fortnite | 2−3
+0%
|
2−3
+0%
|
Here's the range of performance differences observed across popular games:
- in Counter-Strike: Global Offensive, with 1440p resolution and the High Preset, the R5 M420 is 600% faster.
All in all, in popular games:
- R5 M420 performs better in 27 tests (90%)
- there's a draw in 3 tests (10%)
Pros & cons summary
| Performance score | 1.13 | 0.40 |
| Recency | 15 May 2016 | 7 January 2008 |
| Maximum RAM amount | 4 GB | 256 MB |
| Chip lithography | 28 nm | 55 nm |
R5 M420 has a 182.5% higher aggregate performance score, an age advantage of 8 years, a 1500% higher maximum VRAM amount, and a 96.4% more advanced lithography process.
The Radeon R5 M420 is our recommended choice as it beats the Mobility Radeon HD 3670 in performance tests.
Other comparisons
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