GeForce GT 640M Mac Edition vs Radeon R9 280
Aggregate performance score
We've compared Radeon R9 280 with GeForce GT 640M Mac Edition, including specs and performance data.
R9 280 outperforms 640M Mac Edition by a whopping 1289% 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 | 415 | 1164 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 4.64 | no data |
| Power efficiency | 5.08 | 2.29 |
| Architecture | GCN 1.0 (2012−2020) | Kepler (2012−2018) |
| GPU code name | Tahiti | GK107 |
| Market segment | Desktop | Laptop |
| Design | reference | no data |
| Release date | 4 March 2014 (11 years ago) | 3 February 2013 (12 years ago) |
| Launch price (MSRP) | $279 | no data |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
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 | 1792 | 384 |
| Core clock speed | no data | 745 MHz |
| Boost clock speed | 933 MHz | no data |
| Number of transistors | 4,313 million | 1,270 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 200 Watt | 32 Watt |
| Texture fill rate | 104.5 | 23.84 |
| Floating-point processing power | 3.344 TFLOPS | 0.5722 TFLOPS |
| ROPs | 32 | 8 |
| TMUs | 112 | 32 |
| L1 Cache | 448 KB | 32 KB |
| L2 Cache | 768 KB | 128 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).
| Bus support | PCIe 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | 275 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1 x 6-pin + 1 x 8-pin | 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 | GDDR5 | GDDR5 |
| Maximum RAM amount | 3 GB | 512 MB |
| Memory bus width | 384 Bit | 64 Bit |
| Memory clock speed | 1250 MHz | 1250 MHz |
| Memory bandwidth | 240 GB/s | 40 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 | 2x DVI, 1x HDMI, 2x mini-DisplayPort | No outputs |
| Eyefinity | + | - |
| HDMI | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| CrossFire | + | - |
| FreeSync | + | - |
| HD3D | + | - |
| LiquidVR | + | - |
| TressFX | + | - |
| TrueAudio | + | - |
| UVD | + | - |
| DDMA audio | + | no data |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 12 | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | + | 1.1.126 |
| 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 | 13.06 | 0.94 |
| Recency | 4 March 2014 | 3 February 2013 |
| Maximum RAM amount | 3 GB | 512 MB |
| Power consumption (TDP) | 200 Watt | 32 Watt |
R9 280 has a 1289.4% higher aggregate performance score, an age advantage of 1 year, and a 500% higher maximum VRAM amount.
GT 640M Mac Edition, on the other hand, has 525% lower power consumption.
The Radeon R9 280 is our recommended choice as it beats the GeForce GT 640M Mac Edition in performance tests.
Be aware that Radeon R9 280 is a desktop graphics card while GeForce GT 640M Mac Edition is a notebook one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
