Radeon E8870 MXM 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 2.0 (2013−2017) |
| GPU code name | Heathrow | Saturn |
| Market segment | Laptop | Laptop |
| Release date | 24 April 2012 (13 years ago) | 29 September 2015 (10 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 | 768 |
| Core clock speed | 675 MHz | 1000 MHz |
| Number of transistors | 1,500 million | 2,080 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 40 Watt | 75 Watt |
| Texture fill rate | 27.00 | 48.00 |
| Floating-point processing power | 0.864 TFLOPS | 1.536 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 40 | 48 |
| L1 Cache | 160 KB | 192 KB |
| L2 Cache | 256 KB | 256 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 | large | no data |
| Interface | PCIe 3.0 x16 | MXM-B (3.0) |
| 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 | GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Memory bus width | 128 Bit | 128 Bit |
| Memory clock speed | 1000 MHz | 1500 MHz |
| Memory bandwidth | 64 GB/s | 96 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 | Portable Device Dependent |
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 | 6.5 (6.0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2.131 | 1.2.170 |
Pros & cons summary
| Recency | 24 April 2012 | 29 September 2015 |
| Maximum RAM amount | 2 GB | 4 GB |
| Power consumption (TDP) | 40 Watt | 75 Watt |
HD 7850M has 88% lower power consumption.
E8870 MXM, on the other hand, has an age advantage of 3 years, and a 100% higher maximum VRAM amount.
We couldn't decide between Radeon HD 7850M and Radeon E8870 MXM. We've got no test results to judge.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
