Radeon 680M vs ATI Mobility HD 3450
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 508 |
| Place by popularity | not in top-100 | 86 |
| Power efficiency | no data | 14.00 |
| Architecture | TeraScale (2005−2013) | RDNA 2.0 (2020−2025) |
| GPU code name | M82 | Rembrandt+ |
| Market segment | Laptop | Laptop |
| Release date | 7 January 2008 (17 years ago) | 3 January 2023 (2 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 | 768 |
| Core clock speed | 500 MHz | 2000 MHz |
| Boost clock speed | no data | 2200 MHz |
| Number of transistors | 181 million | 13,100 million |
| Manufacturing process technology | 55 nm | 6 nm |
| Power consumption (TDP) | 12 Watt | 50 Watt |
| Texture fill rate | 2.000 | 105.6 |
| Floating-point processing power | 0.04 TFLOPS | 3.379 TFLOPS |
| ROPs | 4 | 32 |
| TMUs | 4 | 48 |
| Ray Tracing Cores | no data | 12 |
| L0 Cache | no data | 192 KB |
| L1 Cache | no data | 256 KB |
| L2 Cache | 64 KB | 2 MB |
| L3 Cache | no data | 8 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 | MXM-II | PCIe 4.0 x8 |
| 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 | DDR2 | System Shared |
| Maximum RAM amount | 256 MB | System Shared |
| Memory bus width | 64 Bit | System Shared |
| Memory clock speed | 400 MHz | System Shared |
| Memory bandwidth | 6.4 GB/s | no data |
| 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 | 10.1 | 12 Ultimate (12_2) |
| Shader Model | 4.1 | 6.7 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | N/A | 2.0 |
| Vulkan | N/A | 1.3 |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
3DMark Vantage Performance
3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.
Pros & cons summary
| Recency | 7 January 2008 | 3 January 2023 |
| Chip lithography | 55 nm | 6 nm |
| Power consumption (TDP) | 12 Watt | 50 Watt |
ATI Mobility HD 3450 has 316.7% lower power consumption.
Radeon 680M, on the other hand, has an age advantage of 14 years, and a 816.7% more advanced lithography process.
We couldn't decide between Mobility Radeon HD 3450 and Radeon 680M. We've got no test results to judge.
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