ATI Radeon E2400 vs GeForce GT 640M Mac Edition
Aggregate performance score
We've compared GeForce GT 640M Mac Edition and Radeon E2400, covering specs and all relevant benchmarks.
GT 640M Mac Edition outperforms ATI E2400 by a whopping 700% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1097 | 1429 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.23 | 0.36 |
| Architecture | Kepler (2012−2018) | TeraScale (2005−2013) |
| GPU code name | GK107 | RV610 |
| Market segment | Laptop | Laptop |
| Release date | 3 February 2013 (11 years ago) | 28 June 2007 (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 | 40 |
| Core clock speed | 745 MHz | 600 MHz |
| Number of transistors | 1,270 million | 180 million |
| Manufacturing process technology | 28 nm | 65 nm |
| Power consumption (TDP) | 32 Watt | 25 Watt |
| Texture fill rate | 23.84 | 2.400 |
| Floating-point processing power | 0.5722 TFLOPS | 0.048 TFLOPS |
| ROPs | 8 | 4 |
| TMUs | 32 | 4 |
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-II |
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 | GDDR3 |
| Maximum RAM amount | 512 MB | 128 MB |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 1250 MHz | 700 MHz |
| Memory bandwidth | 40 GB/s | 11.2 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 | No outputs | No outputs |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 10.0 (10_0) |
| Shader Model | 5.1 | 4.0 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | 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 | 1.04 | 0.13 |
| Recency | 3 February 2013 | 28 June 2007 |
| Maximum RAM amount | 512 MB | 128 MB |
| Chip lithography | 28 nm | 65 nm |
| Power consumption (TDP) | 32 Watt | 25 Watt |
GT 640M Mac Edition has a 700% higher aggregate performance score, an age advantage of 5 years, a 300% higher maximum VRAM amount, and a 132.1% more advanced lithography process.
ATI E2400, on the other hand, has 28% lower power consumption.
The GeForce GT 640M Mac Edition is our recommended choice as it beats the Radeon E2400 in performance tests.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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