ATI Mobility Radeon HD 4670 Mac Edition vs ATI HD 4250
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1397 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 0.89 | no data |
| Architecture | TeraScale (2005−2013) | TeraScale (2005−2013) |
| GPU code name | RV620 | M96 |
| Market segment | Desktop | Laptop |
| Release date | 25 February 2009 (17 years ago) | 16 September 2009 (16 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 | 40 | 320 |
| Core clock speed | 594 MHz | 680 MHz |
| Number of transistors | 181 million | 514 million |
| Manufacturing process technology | 55 nm | 55 nm |
| Power consumption (TDP) | 25 Watt | 35 Watt |
| Texture fill rate | 2.376 | 21.76 |
| Floating-point processing power | 0.04752 TFLOPS | 0.4352 TFLOPS |
| ROPs | 4 | 8 |
| TMUs | 4 | 32 |
| L1 Cache | no data | 64 KB |
| L2 Cache | 64 KB | 128 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).
| Interface | PCIe 2.0 x16 | MXM-A (3.0) |
| Width | 1-slot | no data |
| Supplementary power connectors | None | 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 | DDR2 | GDDR3 |
| Maximum RAM amount | 512 MB | 256 MB |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 396 MHz | 790 MHz |
| Memory bandwidth | 6.336 GB/s | 25.28 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 | 1x DVI, 1x VGA, 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) | 10.1 (10_1) |
| Shader Model | 4.1 | 4.1 |
| OpenGL | 3.3 | 3.3 |
| OpenCL | N/A | 1.1 |
| Vulkan | N/A | N/A |
Pros & cons summary
| Recency | 25 February 2009 | 16 September 2009 |
| Maximum RAM amount | 512 MB | 256 MB |
| Power consumption (TDP) | 25 Watt | 35 Watt |
ATI HD 4250 has a 100% higher maximum VRAM amount, and 40% lower power consumption.
ATI Mobility HD 4670 Mac Edition, on the other hand, has an age advantage of 6 months.
We couldn't decide between Radeon HD 4250 and Mobility Radeon HD 4670 Mac Edition. We've got no test results to judge.
Be aware that Radeon HD 4250 is a desktop graphics card while Mobility Radeon HD 4670 Mac Edition is a notebook one.
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