GeForce GTX 775M Mac Edition vs GT 640
Aggregate performance score
We've compared GeForce GT 640 and GeForce GTX 775M Mac Edition, covering specs and all relevant benchmarks.
GTX 775M Mac Edition outperforms GT 640 by a moderate 11% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
Place in performance ranking | 767 | 735 |
Place by popularity | not in top-100 | not in top-100 |
Cost-effectiveness evaluation | 0.20 | no data |
Architecture | Kepler (2012−2018) | Kepler (2012−2018) |
GPU code name | GK107 | GK104 |
Market segment | Desktop | Desktop |
Release date | 5 June 2012 (12 years ago) | 8 November 2013 (10 years ago) |
Launch price (MSRP) | $99 | no data |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
Pipelines / CUDA cores | 384 | 1344 |
Core clock speed | 902 MHz | 797 MHz |
Number of transistors | 1,270 million | 3,540 million |
Manufacturing process technology | 28 nm | 28 nm |
Power consumption (TDP) | 65 Watt | 100 Watt |
Texture fill rate | 28.86 | 89.26 |
Floating-point performance | 0.6927 gflops | 2.142 gflops |
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 | MXM-B (3.0) |
Length | 145 mm | no data |
Width | 1-slot | MXM Module |
Supplementary power connectors | None | no data |
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 |
Maximum RAM amount | 2 GB | 2 GB |
Memory bus width | 128 Bit | 256 Bit |
Memory clock speed | 1782 MHz | 5000 MHz |
Memory bandwidth | 28.51 GB/s | 160.0 GB/s |
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 | 1x DVI, 1x HDMI, 1x DisplayPort | No outputs |
HDMI | + | - |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
DirectX | 12 (11_0) | 12 (11_0) |
Shader Model | 5.1 | 5.1 |
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 1.2 |
Vulkan | 1.1.126 | 1.1.126 |
CUDA | 3.0 | 3.0 |
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
Performance score | 3.04 | 3.36 |
Recency | 5 June 2012 | 8 November 2013 |
Power consumption (TDP) | 65 Watt | 100 Watt |
GT 640 has 53.8% lower power consumption.
GTX 775M Mac Edition, on the other hand, has a 10.5% higher aggregate performance score, and an age advantage of 1 year.
The GeForce GTX 775M Mac Edition is our recommended choice as it beats the GeForce GT 640 in performance tests.
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.