Iris Xe MAX Graphics vs ATI Radeon HD 3870 Mac Edition
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 683 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 14.43 |
| Architecture | TeraScale (2005−2013) | Generation 12.1 (2020−2021) |
| GPU code name | RV670 | DG1 |
| Market segment | Desktop | Laptop |
| Release date | 12 June 2008 (17 years ago) | 31 October 2020 (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 | 768 |
| Core clock speed | 777 MHz | 300 MHz |
| Boost clock speed | no data | 1650 MHz |
| Number of transistors | 666 million | no data |
| Manufacturing process technology | 55 nm | 10 nm |
| Power consumption (TDP) | 106 Watt | 25 Watt |
| Texture fill rate | 12.43 | 79.20 |
| Floating-point processing power | 0.4973 TFLOPS | 2.534 TFLOPS |
| ROPs | 16 | 24 |
| TMUs | 16 | 48 |
| L2 Cache | 256 KB | 1024 KB |
| L3 Cache | no data | 4 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).
| Interface | PCIe 2.0 x16 | PCIe 4.0 x4 |
| Length | 241 mm | no data |
| Width | 1-slot | no data |
| Supplementary power connectors | 1x 6-pin | no data |
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 | GDDR4 | LPDDR4X |
| Maximum RAM amount | 512 MB | 4 GB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 1126 MHz | 2133 MHz |
| Memory bandwidth | 72.06 GB/s | 68.26 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 | 2x DVI, 1x S-Video | 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 (12_1) |
| Shader Model | 4.1 | 6.4 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | N/A | 3.0 |
| Vulkan | N/A | 1.2 |
Pros & cons summary
| Recency | 12 June 2008 | 31 October 2020 |
| Maximum RAM amount | 512 MB | 4 GB |
| Chip lithography | 55 nm | 10 nm |
| Power consumption (TDP) | 106 Watt | 25 Watt |
Iris Xe MAX Graphics has an age advantage of 12 years, a 700% higher maximum VRAM amount, a 450% more advanced lithography process, and 324% lower power consumption.
We couldn't decide between Radeon HD 3870 Mac Edition and Iris Xe MAX Graphics. We've got no test results to judge.
Be aware that Radeon HD 3870 Mac Edition is a desktop graphics card while Iris Xe MAX Graphics is a notebook one.
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