ATI Radeon HD 4520 vs ATI Mobility HD 3870 X2
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 925 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.47 | no data |
| Architecture | TeraScale (2005−2013) | TeraScale (2005−2013) |
| GPU code name | M88 | RV710 |
| Market segment | Laptop | Desktop |
| Release date | 1 September 2008 (17 years ago) | 2 December 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 | 320 ×2 | 80 |
| Core clock speed | 660 MHz | 600 MHz |
| Number of transistors | 666 million | 242 million |
| Manufacturing process technology | 55 nm | 55 nm |
| Power consumption (TDP) | 110 Watt | 25 Watt |
| Texture fill rate | 10.56 ×2 | 4.800 |
| Floating-point processing power | 0.4224 TFLOPS ×2 | 0.096 TFLOPS |
| ROPs | 16 ×2 | 4 |
| TMUs | 16 ×2 | 8 |
| L1 Cache | no data | 16 KB |
| L2 Cache | 256 KB | 64 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 2.0 x16 | PCIe 2.0 x16 |
| Length | no data | 168 mm |
| Width | no data | 1-slot |
| 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 | DDR2 |
| Maximum RAM amount | 512 MB ×2 | 512 MB |
| Memory bus width | 256 Bit ×2 | 64 Bit |
| Memory clock speed | 850 MHz | 400 MHz |
| Memory bandwidth | 54.4 GB/s ×2 | 6.4 GB/s |
| Shared memory | - | no data |
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 | 1x DVI, 1x HDMI, 1x DisplayPort |
| HDMI | - | + |
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 | 1 September 2008 | 2 December 2009 |
| Power consumption (TDP) | 110 Watt | 25 Watt |
ATI HD 4520 has an age advantage of 1 year, and 340% lower power consumption.
We couldn't decide between Mobility Radeon HD 3870 X2 and Radeon HD 4520. We've got no test results to judge.
Be aware that Mobility Radeon HD 3870 X2 is a notebook graphics card while Radeon HD 4520 is a desktop one.
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