GeForce 320M Mac Edition vs ATI Radeon HD 4870 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 | TeraScale (2005−2013) | Tesla 2.0 (2007−2013) |
| GPU code name | RV770 | C89 |
| Market segment | Desktop | Laptop |
| Release date | 6 January 2009 (16 years ago) | 1 April 2010 (15 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 | 800 | 48 |
| Core clock speed | 750 MHz | 450 MHz |
| Number of transistors | 956 million | 486 million |
| Manufacturing process technology | 55 nm | 40 nm |
| Power consumption (TDP) | 150 Watt | 23 Watt |
| Texture fill rate | 30.00 | 7.200 |
| Floating-point processing power | 1.2 TFLOPS | 0.0912 TFLOPS |
| ROPs | 16 | 8 |
| TMUs | 40 | 16 |
| L1 Cache | 160 KB | no data |
| L2 Cache | 256 KB | no data |
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 2.0 x16 | PCIe 2.0 x16 |
| Length | 250 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 2x 6-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 | System Shared |
| Maximum RAM amount | 512 MB | System Shared |
| Memory bus width | 256 Bit | System Shared |
| Memory clock speed | 850 MHz | System Shared |
| Memory bandwidth | 108.8 GB/s | no data |
| Shared memory | - | + |
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 | 1x DVI, 1x mini-DisplayPort | Portable Device Dependent |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 10.1 (10_1) | 11.1 (10_1) |
| Shader Model | 4.1 | 4.1 |
| OpenGL | 3.3 | 3.3 |
| OpenCL | 1.1 | N/A |
| Vulkan | N/A | N/A |
Pros & cons summary
| Recency | 6 January 2009 | 1 April 2010 |
| Chip lithography | 55 nm | 40 nm |
| Power consumption (TDP) | 150 Watt | 23 Watt |
320M Mac Edition has an age advantage of 1 year, a 37.5% more advanced lithography process, and 552.2% lower power consumption.
We couldn't decide between Radeon HD 4870 Mac Edition and GeForce 320M Mac Edition. We've got no test results to judge.
Be aware that Radeon HD 4870 Mac Edition is a desktop graphics card while GeForce 320M Mac Edition is a notebook one.
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