Radeon RX 6600 vs ATI HD 3870 X2
Aggregate performance score
We've compared Radeon HD 3870 X2 and Radeon RX 6600, covering specs and all relevant benchmarks.
RX 6600 outperforms ATI HD 3870 X2 by a whopping 2036% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 925 | 118 |
| Place by popularity | not in top-100 | 14 |
| Cost-effectiveness evaluation | 0.05 | 65.77 |
| Power efficiency | 0.77 | 20.45 |
| Architecture | TeraScale (2005−2013) | RDNA 2.0 (2020−2024) |
| GPU code name | R680 | Navi 23 |
| Market segment | Desktop | Desktop |
| Release date | 26 January 2008 (17 years ago) | 13 October 2021 (3 years ago) |
| Launch price (MSRP) | $449 | $329 |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
RX 6600 has 131440% better value for money than ATI HD 3870 X2.
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 ×2 | 1792 |
| Core clock speed | 825 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) | 165 Watt | 132 Watt |
| Texture fill rate | 13.20 ×2 | 279.0 |
| Floating-point processing power | 0.528 TFLOPS ×2 | 8.928 TFLOPS |
| ROPs | 16 ×2 | 64 |
| TMUs | 16 ×2 | 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).
| Interface | PCIe 2.0 x16 | PCIe 4.0 x8 |
| Length | 267 mm | 190 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | 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 ×2 | 8 GB |
| Memory bus width | 256 Bit ×2 | 128 Bit |
| Memory clock speed | 901 MHz | 1750 MHz |
| Memory bandwidth | 57.66 GB/s ×2 | 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 | 2x DVI, 1x S-Video | 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.
Passmark
This is the most ubiquitous GPU benchmark. 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.
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 | 5−6
−2120%
| 111
+2120%
|
| 1440p | 2−3
−2700%
| 56
+2700%
|
| 4K | 1−2
−2900%
| 30
+2900%
|
Cost per frame, $
| 1080p | 89.80
−2930%
| 2.96
+2930%
|
| 1440p | 224.50
−3721%
| 5.88
+3721%
|
| 4K | 449.00
−3994%
| 10.97
+3994%
|
- RX 6600 has 2930% lower cost per frame in 1080p
- RX 6600 has 3721% lower cost per frame in 1440p
- RX 6600 has 3994% lower cost per frame in 4K
FPS performance in popular games
Full HD
Low Preset
| Atomic Heart | 169
+0%
|
169
+0%
|
| Counter-Strike 2 | 111
+0%
|
111
+0%
|
| Cyberpunk 2077 | 107
+0%
|
107
+0%
|
Full HD
Medium Preset
| Atomic Heart | 120
+0%
|
120
+0%
|
| Battlefield 5 | 120−130
+0%
|
120−130
+0%
|
| Counter-Strike 2 | 84
+0%
|
84
+0%
|
| Cyberpunk 2077 | 91
+0%
|
91
+0%
|
| Far Cry 5 | 154
+0%
|
154
+0%
|
| Fortnite | 160−170
+0%
|
160−170
+0%
|
| Forza Horizon 4 | 140−150
+0%
|
140−150
+0%
|
| Forza Horizon 5 | 123
+0%
|
123
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 140−150
+0%
|
140−150
+0%
|
| Valorant | 210−220
+0%
|
210−220
+0%
|
Full HD
High Preset
| Atomic Heart | 70
+0%
|
70
+0%
|
| Battlefield 5 | 120−130
+0%
|
120−130
+0%
|
| Counter-Strike 2 | 68
+0%
|
68
+0%
|
| Counter-Strike: Global Offensive | 270−280
+0%
|
270−280
+0%
|
| Cyberpunk 2077 | 73
+0%
|
73
+0%
|
| Dota 2 | 150
+0%
|
150
+0%
|
| Far Cry 5 | 142
+0%
|
142
+0%
|
| Fortnite | 160−170
+0%
|
160−170
+0%
|
| Forza Horizon 4 | 140−150
+0%
|
140−150
+0%
|
| Forza Horizon 5 | 98
+0%
|
98
+0%
|
| Grand Theft Auto V | 137
+0%
|
137
+0%
|
| Metro Exodus | 82
+0%
|
82
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 140−150
+0%
|
140−150
+0%
|
| The Witcher 3: Wild Hunt | 147
+0%
|
147
+0%
|
| Valorant | 210−220
+0%
|
210−220
+0%
|
Full HD
Ultra Preset
| Battlefield 5 | 120−130
+0%
|
120−130
+0%
|
| Counter-Strike 2 | 59
+0%
|
59
+0%
|
| Cyberpunk 2077 | 59
+0%
|
59
+0%
|
| Dota 2 | 107
+0%
|
107
+0%
|
| Far Cry 5 | 134
+0%
|
134
+0%
|
| Forza Horizon 4 | 140−150
+0%
|
140−150
+0%
|
| Forza Horizon 5 | 85
+0%
|
85
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 140−150
+0%
|
140−150
+0%
|
| The Witcher 3: Wild Hunt | 90
+0%
|
90
+0%
|
| Valorant | 210−220
+0%
|
210−220
+0%
|
Full HD
Epic Preset
| Fortnite | 160−170
+0%
|
160−170
+0%
|
1440p
High Preset
| Counter-Strike 2 | 30−33
+0%
|
30−33
+0%
|
| Counter-Strike: Global Offensive | 250−260
+0%
|
250−260
+0%
|
| Grand Theft Auto V | 64
+0%
|
64
+0%
|
| Metro Exodus | 48
+0%
|
48
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180
+0%
|
170−180
+0%
|
| Valorant | 240−250
+0%
|
240−250
+0%
|
1440p
Ultra Preset
| Battlefield 5 | 90−95
+0%
|
90−95
+0%
|
| Cyberpunk 2077 | 34
+0%
|
34
+0%
|
| Far Cry 5 | 91
+0%
|
91
+0%
|
| Forza Horizon 4 | 100−110
+0%
|
100−110
+0%
|
| Forza Horizon 5 | 60
+0%
|
60
+0%
|
| The Witcher 3: Wild Hunt | 65−70
+0%
|
65−70
+0%
|
1440p
Epic Preset
| Fortnite | 95−100
+0%
|
95−100
+0%
|
4K
High Preset
| Atomic Heart | 27−30
+0%
|
27−30
+0%
|
| Counter-Strike 2 | 18−20
+0%
|
18−20
+0%
|
| Grand Theft Auto V | 60
+0%
|
60
+0%
|
| Metro Exodus | 29
+0%
|
29
+0%
|
| The Witcher 3: Wild Hunt | 44
+0%
|
44
+0%
|
| Valorant | 220−230
+0%
|
220−230
+0%
|
4K
Ultra Preset
| Battlefield 5 | 55−60
+0%
|
55−60
+0%
|
| Counter-Strike 2 | 7
+0%
|
7
+0%
|
| Cyberpunk 2077 | 14
+0%
|
14
+0%
|
| Dota 2 | 85
+0%
|
85
+0%
|
| Far Cry 5 | 44
+0%
|
44
+0%
|
| Forza Horizon 4 | 65−70
+0%
|
65−70
+0%
|
| Forza Horizon 5 | 29
+0%
|
29
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 45−50
+0%
|
45−50
+0%
|
4K
Epic Preset
| Fortnite | 45−50
+0%
|
45−50
+0%
|
This is how ATI HD 3870 X2 and RX 6600 compete in popular games:
- RX 6600 is 2120% faster in 1080p
- RX 6600 is 2700% faster in 1440p
- RX 6600 is 2900% faster in 4K
All in all, in popular games:
- there's a draw in 67 tests (100%)
Pros & cons summary
| Performance score | 1.80 | 38.44 |
| Recency | 26 January 2008 | 13 October 2021 |
| Maximum RAM amount | 512 MB | 8 GB |
| Chip lithography | 55 nm | 7 nm |
| Power consumption (TDP) | 165 Watt | 132 Watt |
RX 6600 has a 2035.6% higher aggregate performance score, an age advantage of 13 years, a 1500% higher maximum VRAM amount, a 685.7% more advanced lithography process, and 25% lower power consumption.
The Radeon RX 6600 is our recommended choice as it beats the Radeon HD 3870 X2 in performance tests.
Other comparisons
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