Radeon Instinct MI250X vs HD 6990M Rebrand
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 2 (2009−2015) | CDNA 2.0 (2021) |
| GPU code name | Broadway | Aldebaran |
| Market segment | Laptop | Workstation |
| Release date | 12 July 2011 (13 years ago) | 8 November 2021 (3 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 | 14080 |
| Core clock speed | 800 MHz | 1000 MHz |
| Boost clock speed | no data | 1700 MHz |
| Number of transistors | 1,040 million | 58,200 million |
| Manufacturing process technology | 40 nm | 6 nm |
| Power consumption (TDP) | 100 Watt | 500 Watt |
| Texture fill rate | 32.00 | 1,496 |
| Floating-point processing power | 1.28 TFLOPS | 47.87 TFLOPS |
| ROPs | 16 | no data |
| TMUs | 40 | 880 |
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 | MXM-B (3.0) | PCIe 4.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 2x 8-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 | HBM2e |
| Maximum RAM amount | 1 GB | 128 GB |
| Memory bus width | 128 Bit | 8192 Bit |
| Memory clock speed | 1100 MHz | 1600 MHz |
| Memory bandwidth | 70.4 GB/s | 3,277 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 | 11.2 (11_0) | N/A |
| Shader Model | 5.0 | N/A |
| OpenGL | 4.4 | N/A |
| OpenCL | 1.2 | 3.0 |
| Vulkan | N/A | N/A |
Pros & cons summary
| Recency | 12 July 2011 | 8 November 2021 |
| Maximum RAM amount | 1 GB | 128 GB |
| Chip lithography | 40 nm | 6 nm |
| Power consumption (TDP) | 100 Watt | 500 Watt |
HD 6990M Rebrand has 400% lower power consumption.
Instinct MI250X, on the other hand, has an age advantage of 10 years, a 12700% higher maximum VRAM amount, and a 566.7% more advanced lithography process.
We couldn't decide between Radeon HD 6990M Rebrand and Radeon Instinct MI250X. We've got no test results to judge.
Be aware that Radeon HD 6990M Rebrand is a notebook card while Radeon Instinct MI250X is a workstation one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
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