ATI Radeon HD 4750 vs GeForce GTX 680MX Mac Edition
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | Kepler (2012−2018) | TeraScale (2005−2013) |
| GPU code name | GK104 | RV740 |
| Market segment | Laptop | Desktop |
| Release date | 23 October 2012 (13 years ago) | 9 September 2009 (16 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 | 1536 | 640 |
| Core clock speed | 719 MHz | 730 MHz |
| Number of transistors | 3,540 million | 826 million |
| Manufacturing process technology | 28 nm | 40 nm |
| Power consumption (TDP) | 122 Watt | 100 Watt |
| Texture fill rate | 92.03 | 23.36 |
| Floating-point processing power | 2.209 TFLOPS | 0.9344 TFLOPS |
| ROPs | 32 | 16 |
| TMUs | 128 | 32 |
| L1 Cache | 128 KB | 128 KB |
| L2 Cache | 512 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).
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Width | no data | 1-slot |
| Supplementary power connectors | no data | 1x 6-pin |
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 | 2 GB | 512 MB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 1250 MHz | 800 MHz |
| Memory bandwidth | 160.0 GB/s | 51.2 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 | 2x DVI, 1x S-Video |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 10.1 (10_1) |
| Shader Model | 5.1 | 4.1 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.0 | - |
Pros & cons summary
| Recency | 23 October 2012 | 9 September 2009 |
| Maximum RAM amount | 2 GB | 512 MB |
| Chip lithography | 28 nm | 40 nm |
| Power consumption (TDP) | 122 Watt | 100 Watt |
GTX 680MX Mac Edition has an age advantage of 3 years, a 300% higher maximum VRAM amount, and a 43% more advanced lithography process.
ATI HD 4750, on the other hand, has 22% lower power consumption.
We couldn't decide between GeForce GTX 680MX Mac Edition and Radeon HD 4750. We've got no test results to judge.
Be aware that GeForce GTX 680MX Mac Edition is a notebook graphics card while Radeon HD 4750 is a desktop one.
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