Radeon RX 580X Mobile vs HD 7850M
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 794 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 6.31 | no data |
| Architecture | GCN 1.0 (2012−2020) | GCN 4.0 (2016−2020) |
| GPU code name | Heathrow | Polaris 20 |
| Market segment | Laptop | Laptop |
| Release date | 24 April 2012 (13 years ago) | 11 April 2018 (7 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 | 640 | 2304 |
| Core clock speed | 675 MHz | 1000 MHz |
| Boost clock speed | no data | 1077 MHz |
| Number of transistors | 1,500 million | 5,700 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | 40 Watt | 100 Watt |
| Texture fill rate | 27.00 | 155.1 |
| Floating-point processing power | 0.864 TFLOPS | 4.963 TFLOPS |
| ROPs | 16 | 32 |
| TMUs | 40 | 144 |
| L1 Cache | 160 KB | 576 KB |
| L2 Cache | 256 KB | 2 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 | large |
| Interface | PCIe 3.0 x16 | MXM-B (3.0) |
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 | GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 8 GB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 1000 MHz | 2000 MHz |
| Memory bandwidth | 64 GB/s | 256.0 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) | 12 (12_0) |
| Shader Model | 5.1 | 6.4 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.2.131 | 1.2.131 |
Pros & cons summary
| Recency | 24 April 2012 | 11 April 2018 |
| Maximum RAM amount | 2 GB | 8 GB |
| Chip lithography | 28 nm | 14 nm |
| Power consumption (TDP) | 40 Watt | 100 Watt |
HD 7850M has 150% lower power consumption.
RX 580X Mobile, on the other hand, has an age advantage of 5 years, a 300% higher maximum VRAM amount, and a 100% more advanced lithography process.
We couldn't decide between Radeon HD 7850M and Radeon RX 580X Mobile. We've got no test results to judge.
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