GeForce 320M Mac Edition vs Radeon HD 6990M Crossfire
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 440 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | Terascale 2 (2009−2015) | Tesla 2.0 (2007−2013) |
| GPU code name | Blackcomb XTX | C89 |
| Market segment | Laptop | Laptop |
| Release date | 12 July 2011 (13 years ago) | 1 April 2010 (14 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 | 2240 | 48 |
| Core clock speed | 715 MHz | 450 MHz |
| Number of transistors | 2x1700 Million | 486 million |
| Manufacturing process technology | 40 nm | 40 nm |
| Power consumption (TDP) | no data | 23 Watt |
| Texture fill rate | no data | 7.200 |
| Floating-point processing power | no data | 0.0912 TFLOPS |
| ROPs | no data | 8 |
| TMUs | no data | 16 |
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).
| Laptop size | large | no data |
| Interface | no data | PCIe 2.0 x16 |
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 | 2x2 GB | System Shared |
| Memory bus width | 256 Bit | System Shared |
| Memory clock speed | 900 MHz | System Shared |
| Shared memory | - | no data |
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 data | Portable Device Dependent |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11 | 11.1 (10_1) |
| Shader Model | no data | 4.1 |
| OpenGL | no data | 3.3 |
| OpenCL | no data | N/A |
| Vulkan | - | N/A |
Pros & cons summary
| Recency | 12 July 2011 | 1 April 2010 |
HD 6990M Crossfire has an age advantage of 1 year.
We couldn't decide between Radeon HD 6990M Crossfire and GeForce 320M Mac Edition. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
