GeForce MX450 30.5W 8Gbps vs GT 640M Mac Edition
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1146 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.29 | no data |
| Architecture | Kepler (2012−2018) | Turing (2018−2022) |
| GPU code name | GK107 | TU117 |
| Market segment | Laptop | Laptop |
| Release date | 3 February 2013 (12 years ago) | 25 August 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 | 384 | 896 |
| Core clock speed | 745 MHz | 1035 MHz |
| Boost clock speed | no data | 1275 MHz |
| Number of transistors | 1,270 million | 4,700 million |
| Manufacturing process technology | 28 nm | 12 nm |
| Power consumption (TDP) | 32 Watt | 31 Watt |
| Texture fill rate | 23.84 | 71.40 |
| Floating-point processing power | 0.5722 TFLOPS | 2.285 TFLOPS |
| ROPs | 8 | 32 |
| TMUs | 32 | 56 |
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 3.0 x16 | PCIe 4.0 x4 |
| 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 | 512 MB | 2 GB |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 1250 MHz | 2000 MHz |
| Memory bandwidth | 40 GB/s | 64 GB/s |
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 | No outputs |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (12_1) |
| Shader Model | 5.1 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.2 |
| CUDA | 3.0 | 7.5 |
Pros & cons summary
| Recency | 3 February 2013 | 25 August 2020 |
| Maximum RAM amount | 512 MB | 2 GB |
| Chip lithography | 28 nm | 12 nm |
| Power consumption (TDP) | 32 Watt | 31 Watt |
MX450 30.5W 8Gbps has an age advantage of 7 years, a 300% higher maximum VRAM amount, a 133.3% more advanced lithography process, and 3.2% lower power consumption.
We couldn't decide between GeForce GT 640M Mac Edition and GeForce MX450 30.5W 8Gbps. We've got no test results to judge.
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