GeForce GT 640M Mac Edition: specs and benchmarks
Aggregate performance score
GeForce GT 640M Mac Edition provides poor gaming and benchmark performance at 1.04% of a leader's which is GeForce RTX 4090.
Summary
NVIDIA started GeForce GT 640M Mac Edition sales 3 February 2013. This is a Kepler architecture notebook card based on 28 nm manufacturing process and primarily aimed at office use. 512 MB of GDDR5 memory clocked at 1.25 GHz are supplied, and together with 64 Bit memory interface this creates a bandwidth of 40 GB/s.
Compatibility-wise, this is a graphics card attached via PCIe 3.0 x16 interface. Power consumption is at 32 Watt.
Primary details
Some basic facts about GeForce GT 640M Mac Edition: architecture, market segment, release date etc.
| Place in the ranking | 1094 | |
| Place by popularity | not in top-100 | |
| Power efficiency | 2.27 | of 100.00 (Radeon 890M) |
| Architecture | Kepler (2012−2018) | |
| GPU code name | GK107 | |
| Market segment | Laptop | |
| Release date | 3 February 2013 (11 years ago) |
Detailed specifications
GeForce GT 640M Mac Edition's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of GeForce GT 640M Mac Edition's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 384 | of 21760 (GeForce RTX 5090) |
| Core clock speed | 745 MHz | of 2610 MHz (Radeon RX 6500 XT) |
| Number of transistors | 1,270 million | of 208,000 million (B200 SXM 192 GB) |
| Manufacturing process technology | 28 nm | of 3 nm (Arc Graphics 140V) |
| Power consumption (TDP) | 32 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 23.84 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 0.5722 TFLOPS | of 109.7 (GeForce RTX 5090) |
| ROPs | 8 | of 192 (Radeon RX 7900 XTX) |
| TMUs | 32 | of 1280 (Data Center GPU Max NEXT) |
Form factor & compatibility
This section provides details about the physical dimensions of GeForce GT 640M Mac Edition and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).
| Interface | PCIe 3.0 x16 |
VRAM capacity and type
Parameters of memory installed on GeForce GT 640M Mac Edition: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.
| Memory type | GDDR5 | |
| Maximum RAM amount | 512 MB | of 294912 (Radeon Instinct MI325X) |
| Memory bus width | 64 Bit | of 8192 Bit (Radeon Instinct MI250X) |
| Memory clock speed | 1250 MHz | of 20000 (RTX 5000 Ada Generation Mobile) |
| Memory bandwidth | 40 GB/s | of 5,171 GB/s (Radeon Instinct MI300X) |
Connectivity and outputs
Types and number of video connectors present on GeForce GT 640M Mac Edition. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.
| Display Connectors | No outputs |
API compatibility
APIs supported by GeForce GT 640M Mac Edition, sometimes including their particular versions.
| DirectX | 12 (11_0) | |
| Shader Model | 5.1 | |
| OpenGL | 4.6 | |
| OpenCL | 1.2 | |
| Vulkan | 1.1.126 | |
| CUDA | 3.0 |
Benchmark performance
Synthetic benchmark performance of GeForce GT 640M Mac Edition. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
We have no data on GeForce GT 640M Mac Edition benchmark results.
Send your test results of GeForce GT 640M Mac Edition.
AMD equivalent
According to our data, the closest AMD alternative to GeForce GT 640M Mac Edition is Mobility Radeon HD 4650, which is nearly equal in speed and lower by 1 position in our ranking.
Here are some closest AMD rivals to GeForce GT 640M Mac Edition:
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
Recommended processors
These processors are most commonly used with GeForce GT 640M Mac Edition according to our statistics.
