Radeon Pro 575X vs GeForce GT 640M
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 841 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 5.21 | no data |
| Architecture | Kepler (2012−2018) | GCN 4.0 (2016−2020) |
| GPU code name | GK107 | Polaris 20 |
| Market segment | Laptop | Mobile workstation |
| Release date | 22 March 2012 (12 years ago) | 18 March 2019 (5 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 | 2048 |
| Core clock speed | Up to 625 MHz | 1096 MHz |
| Boost clock speed | 645 MHz | no data |
| Number of transistors | 1,270 million | 5,700 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | 32 Watt | 120 Watt |
| Texture fill rate | 20.00 | 140.3 |
| Floating-point processing power | 0.48 TFLOPS | 4.489 TFLOPS |
| ROPs | 16 | 32 |
| TMUs | 32 | 128 |
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 | medium sized | no data |
| Bus support | PCI Express 2.0, PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| 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 | DDR3\GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Memory bus width | 128bit | 256 Bit |
| Memory clock speed | 900 MHz | 1700 MHz |
| Memory bandwidth | Up to 64.0 GB/s | 217.6 GB/s |
| Shared memory | - | - |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | No outputs | No outputs |
| HDMI | + | - |
| HDCP | + | - |
| Maximum VGA resolution | Up to 2048x1536 | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Blu-Ray | + | - |
| Optimus | + | - |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 API | 12 (12_0) |
| Shader Model | 5.1 | 6.4 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.1 | 2.0 |
| Vulkan | 1.1.126 | 1.2.131 |
| CUDA | + | - |
Synthetic benchmark performance
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
GeekBench 5 OpenCL
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.
GeekBench 5 Vulkan
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses Vulkan API by AMD & Khronos Group.
Pros & cons summary
| Recency | 22 March 2012 | 18 March 2019 |
| Maximum RAM amount | 2 GB | 4 GB |
| Chip lithography | 28 nm | 14 nm |
| Power consumption (TDP) | 32 Watt | 120 Watt |
GT 640M has 275% lower power consumption.
Pro 575X, on the other hand, has an age advantage of 6 years, a 100% higher maximum VRAM amount, and a 100% more advanced lithography process.
We couldn't decide between GeForce GT 640M and Radeon Pro 575X. We've got no test results to judge.
Be aware that GeForce GT 640M is a notebook graphics card while Radeon Pro 575X is a mobile workstation one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
