Radeon RX 6600S vs ATI Mobility HD 3850 X2
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 199 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 29.96 |
| Architecture | TeraScale (2005−2013) | RDNA 2.0 (2020−2025) |
| GPU code name | M88 | Navi 23 |
| Market segment | Laptop | Laptop |
| Release date | 4 June 2008 (17 years ago) | 4 January 2022 (4 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 ×2 | 1792 |
| Core clock speed | 580 MHz | 1700 MHz |
| Boost clock speed | no data | 2000 MHz |
| Number of transistors | 666 million | 11,060 million |
| Manufacturing process technology | 55 nm | 7 nm |
| Power consumption (TDP) | 70 Watt | 80 Watt |
| Texture fill rate | 9.280 ×2 | 224.0 |
| Floating-point processing power | 0.3712 TFLOPS ×2 | 7.168 TFLOPS |
| ROPs | 16 ×2 | 64 |
| TMUs | 16 ×2 | 112 |
| Ray Tracing Cores | no data | 28 |
| L0 Cache | no data | 448 KB |
| L1 Cache | no data | 512 KB |
| L2 Cache | 256 KB | 2 MB |
| L3 Cache | no data | 32 MB |
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 | medium sized |
| Interface | PCIe 2.0 x16 | PCIe 4.0 x8 |
| Supplementary power connectors | no data | None |
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 | 4 GB |
| Memory bus width | 256 Bit ×2 | 128 Bit |
| Memory clock speed | 750 MHz | 1750 MHz |
| Memory bandwidth | 48 GB/s ×2 | 224.0 GB/s |
| Shared memory | - | - |
| Resizable BAR | - | + |
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 | 10.1 (10_1) | 12 Ultimate (12_2) |
| Shader Model | 4.1 | 6.5 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | N/A | 2.1 |
| Vulkan | N/A | 1.3 |
Pros & cons summary
| Recency | 4 June 2008 | 4 January 2022 |
| Maximum RAM amount | 512 MB | 4 GB |
| Chip lithography | 55 nm | 7 nm |
| Power consumption (TDP) | 70 Watt | 80 Watt |
ATI Mobility HD 3850 X2 has 14% lower power consumption.
RX 6600S, on the other hand, has an age advantage of 13 years, a 700% higher maximum VRAM amount, and a 686% more advanced lithography process.
We couldn't decide between Mobility Radeon HD 3850 X2 and Radeon RX 6600S. We've got no test results to judge.
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