GeForce 8400 SE vs GT 640M Mac Edition
Aggregate performance score
We've compared GeForce GT 640M Mac Edition with GeForce 8400 SE, including specs and performance data.
GT 640M Mac Edition outperforms 8400 SE by a whopping 500% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1150 | 1460 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.29 | 0.24 |
| Architecture | Kepler (2012−2018) | Tesla (2006−2010) |
| GPU code name | GK107 | G86S |
| Market segment | Laptop | Desktop |
| Release date | 3 February 2013 (12 years ago) | 1 August 2008 (17 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 | 16 |
| Core clock speed | 745 MHz | 459 MHz |
| Number of transistors | 1,270 million | 210 million |
| Manufacturing process technology | 28 nm | 80 nm |
| Power consumption (TDP) | 32 Watt | 50 Watt |
| Texture fill rate | 23.84 | 3.672 |
| Floating-point processing power | 0.5722 TFLOPS | 0.02938 TFLOPS |
| ROPs | 8 | 4 |
| TMUs | 32 | 8 |
| L1 Cache | 32 KB | no data |
| L2 Cache | 128 KB | 16 KB |
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 1.0 x16 |
| Length | no data | 168 mm |
| Width | no data | 1-slot |
| 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 | DDR2 |
| Maximum RAM amount | 512 MB | 128 MB |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 1250 MHz | 400 MHz |
| Memory bandwidth | 40 GB/s | 6.4 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 | 1x DVI, 1x VGA, 1x S-Video |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 11.1 (10_0) |
| Shader Model | 5.1 | 4.0 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.0 | 1.1 |
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 | 0.96 | 0.16 |
| Recency | 3 February 2013 | 1 August 2008 |
| Maximum RAM amount | 512 MB | 128 MB |
| Chip lithography | 28 nm | 80 nm |
| Power consumption (TDP) | 32 Watt | 50 Watt |
GT 640M Mac Edition has a 500% higher aggregate performance score, an age advantage of 4 years, a 300% higher maximum VRAM amount, a 185.7% more advanced lithography process, and 56.3% lower power consumption.
The GeForce GT 640M Mac Edition is our recommended choice as it beats the GeForce 8400 SE in performance tests.
Be aware that GeForce GT 640M Mac Edition is a notebook graphics card while GeForce 8400 SE is a desktop one.
Other comparisons
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