Radeon RX 6600 vs ATI Mobility HD 3870
Aggregate performance score
We've compared Mobility Radeon HD 3870 with Radeon RX 6600, including specs and performance data.
RX 6600 outperforms ATI Mobility HD 3870 by a whopping 2724% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1017 | 118 |
| Place by popularity | not in top-100 | 14 |
| Cost-effectiveness evaluation | no data | 66.42 |
| Power efficiency | 1.73 | 20.39 |
| Architecture | TeraScale (2005−2013) | RDNA 2.0 (2020−2024) |
| GPU code name | M88 | Navi 23 |
| Market segment | Laptop | Desktop |
| Release date | 4 June 2008 (16 years ago) | 13 October 2021 (3 years ago) |
| Launch price (MSRP) | no data | $329 |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
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 | 1792 |
| Core clock speed | 660 MHz | 1626 MHz |
| Boost clock speed | no data | 2491 MHz |
| Number of transistors | 666 million | 11,060 million |
| Manufacturing process technology | 55 nm | 7 nm |
| Power consumption (TDP) | 55 Watt | 132 Watt |
| Texture fill rate | 10.56 | 279.0 |
| Floating-point processing power | 0.4224 TFLOPS | 8.928 TFLOPS |
| ROPs | 16 | 64 |
| TMUs | 16 | 112 |
| Ray Tracing Cores | no data | 28 |
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 | PCIe 2.0 x16 | PCIe 4.0 x8 |
| Length | no data | 190 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 1x 8-pin |
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 | GDDR3 | GDDR6 |
| Maximum RAM amount | 512 MB | 8 GB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 850 MHz | 1750 MHz |
| Memory bandwidth | 54.4 GB/s | 224.0 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 | 1x HDMI, 3x DisplayPort |
| HDMI | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 10.1 (10_1) | 12.0 Ultimate (12_2) |
| Shader Model | 4.1 | 6.5 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | N/A | 2.1 |
| Vulkan | N/A | 1.2 |
Synthetic benchmark performance
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
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.
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 | 3−4
−3600%
| 111
+3600%
|
| 1440p | 1−2
−5500%
| 56
+5500%
|
| 4K | 1−2
−2900%
| 30
+2900%
|
Cost per frame, $
| 1080p | no data | 2.96 |
| 1440p | no data | 5.88 |
| 4K | no data | 10.97 |
FPS performance in popular games
Full HD
Low Preset
| Atomic Heart | 4−5
−4125%
|
169
+4125%
|
| Counter-Strike 2 | 8−9
−1288%
|
111
+1288%
|
| Cyberpunk 2077 | 3−4
−3467%
|
107
+3467%
|
Full HD
Medium Preset
| Atomic Heart | 4−5
−2900%
|
120
+2900%
|
| Battlefield 5 | 2−3
−6250%
|
120−130
+6250%
|
| Counter-Strike 2 | 8−9
−950%
|
84
+950%
|
| Cyberpunk 2077 | 3−4
−2933%
|
91
+2933%
|
| Fortnite | 4−5
−3900%
|
160−170
+3900%
|
| Forza Horizon 4 | 7−8
−1914%
|
140−150
+1914%
|
| Forza Horizon 5 | 0−1 | 123 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
−1511%
|
140−150
+1511%
|
| Valorant | 30−35
−535%
|
210−220
+535%
|
Full HD
High Preset
| Atomic Heart | 4−5
−1650%
|
70
+1650%
|
| Battlefield 5 | 2−3
−6250%
|
120−130
+6250%
|
| Counter-Strike 2 | 8−9
−750%
|
68
+750%
|
| Counter-Strike: Global Offensive | 30−33
−823%
|
270−280
+823%
|
| Cyberpunk 2077 | 3−4
−2333%
|
73
+2333%
|
| Dota 2 | 16−18
−782%
|
150
+782%
|
| Fortnite | 4−5
−3900%
|
160−170
+3900%
|
| Forza Horizon 4 | 7−8
−1914%
|
140−150
+1914%
|
| Forza Horizon 5 | 0−1 | 98 |
| Grand Theft Auto V | 1−2
−13600%
|
137
+13600%
|
| Metro Exodus | 2−3
−4000%
|
82
+4000%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
−1511%
|
140−150
+1511%
|
| The Witcher 3: Wild Hunt | 6−7
−2350%
|
147
+2350%
|
| Valorant | 30−35
−535%
|
210−220
+535%
|
Full HD
Ultra Preset
| Battlefield 5 | 2−3
−6250%
|
120−130
+6250%
|
| Counter-Strike 2 | 8−9
−638%
|
59
+638%
|
| Cyberpunk 2077 | 3−4
−1867%
|
59
+1867%
|
| Dota 2 | 16−18
−529%
|
107
+529%
|
| Forza Horizon 4 | 7−8
−1914%
|
140−150
+1914%
|
| Forza Horizon 5 | 0−1 | 85 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
−1511%
|
140−150
+1511%
|
| The Witcher 3: Wild Hunt | 6−7
−1400%
|
90
+1400%
|
| Valorant | 30−35
−535%
|
210−220
+535%
|
Full HD
Epic Preset
| Fortnite | 4−5
−3900%
|
160−170
+3900%
|
1440p
High Preset
| Counter-Strike 2 | 1−2
−2900%
|
30−33
+2900%
|
| Counter-Strike: Global Offensive | 8−9
−3025%
|
250−260
+3025%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−2088%
|
170−180
+2088%
|
| Valorant | 5−6
−4880%
|
240−250
+4880%
|
1440p
Ultra Preset
| Cyberpunk 2077 | 1−2
−3300%
|
34
+3300%
|
| Far Cry 5 | 1−2
−9000%
|
91
+9000%
|
| Forza Horizon 4 | 3−4
−3333%
|
100−110
+3333%
|
| The Witcher 3: Wild Hunt | 2−3
−3300%
|
65−70
+3300%
|
1440p
Epic Preset
| Fortnite | 2−3
−4650%
|
95−100
+4650%
|
4K
High Preset
| Atomic Heart | 1−2
−2800%
|
27−30
+2800%
|
| Grand Theft Auto V | 14−16
−300%
|
60
+300%
|
| Valorant | 7−8
−3071%
|
220−230
+3071%
|
4K
Ultra Preset
| Cyberpunk 2077 | 0−1 | 14 |
| Dota 2 | 1−2
−8400%
|
85
+8400%
|
| Far Cry 5 | 2−3
−2100%
|
44
+2100%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 2−3
−2250%
|
45−50
+2250%
|
4K
Epic Preset
| Fortnite | 2−3
−2200%
|
45−50
+2200%
|
Full HD
Medium Preset
| Far Cry 5 | 154
+0%
|
154
+0%
|
Full HD
High Preset
| Far Cry 5 | 142
+0%
|
142
+0%
|
Full HD
Ultra Preset
| Far Cry 5 | 134
+0%
|
134
+0%
|
1440p
High Preset
| Grand Theft Auto V | 64
+0%
|
64
+0%
|
| Metro Exodus | 48
+0%
|
48
+0%
|
1440p
Ultra Preset
| Battlefield 5 | 90−95
+0%
|
90−95
+0%
|
| Forza Horizon 5 | 60
+0%
|
60
+0%
|
4K
High Preset
| Counter-Strike 2 | 18−20
+0%
|
18−20
+0%
|
| Metro Exodus | 29
+0%
|
29
+0%
|
| The Witcher 3: Wild Hunt | 44
+0%
|
44
+0%
|
4K
Ultra Preset
| Battlefield 5 | 55−60
+0%
|
55−60
+0%
|
| Counter-Strike 2 | 7
+0%
|
7
+0%
|
| Forza Horizon 4 | 65−70
+0%
|
65−70
+0%
|
| Forza Horizon 5 | 29
+0%
|
29
+0%
|
This is how ATI Mobility HD 3870 and RX 6600 compete in popular games:
- RX 6600 is 3600% faster in 1080p
- RX 6600 is 5500% faster in 1440p
- RX 6600 is 2900% faster in 4K
Here's the range of performance differences observed across popular games:
- in Grand Theft Auto V, with 1080p resolution and the High Preset, the RX 6600 is 13600% faster.
All in all, in popular games:
- RX 6600 is ahead in 49 tests (78%)
- there's a draw in 14 tests (22%)
Pros & cons summary
| Performance score | 1.39 | 39.25 |
| Recency | 4 June 2008 | 13 October 2021 |
| Maximum RAM amount | 512 MB | 8 GB |
| Chip lithography | 55 nm | 7 nm |
| Power consumption (TDP) | 55 Watt | 132 Watt |
ATI Mobility HD 3870 has 140% lower power consumption.
RX 6600, on the other hand, has a 2723.7% higher aggregate performance score, an age advantage of 13 years, a 1500% higher maximum VRAM amount, and a 685.7% more advanced lithography process.
The Radeon RX 6600 is our recommended choice as it beats the Mobility Radeon HD 3870 in performance tests.
Be aware that Mobility Radeon HD 3870 is a notebook card while Radeon RX 6600 is a desktop one.
Other comparisons
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