UHD Graphics G1 vs ATI Radeon HD 2900 GT
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1155 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 0.35 | no data |
| Architecture | TeraScale (2005−2013) | Generation 11.0 (2019−2021) |
| GPU code name | R600 | Ice Lake GT1 |
| Market segment | Desktop | Laptop |
| Release date | 6 November 2007 (17 years ago) | 29 May 2019 (5 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 | 240 | 256 |
| Core clock speed | 601 MHz | 300 MHz |
| Boost clock speed | no data | 900 MHz |
| Number of transistors | 720 million | no data |
| Manufacturing process technology | 80 nm | 10 nm |
| Power consumption (TDP) | 150 Watt | 15 Watt |
| Texture fill rate | 7.212 | 14.40 |
| Floating-point processing power | 0.2885 TFLOPS | 0.4608 TFLOPS |
| ROPs | 12 | 8 |
| TMUs | 12 | 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).
| Interface | PCIe 1.0 x16 | PCIe 3.0 x1 |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 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 | GDDR3 | System Shared |
| Maximum RAM amount | 256 MB | System Shared |
| Memory bus width | 256 Bit | System Shared |
| Memory clock speed | 800 MHz | System Shared |
| Memory bandwidth | 51.2 GB/s | no data |
| Shared memory | - | + |
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 | 2x DVI, 1x S-Video | No outputs |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 10.0 (10_0) | 12 (12_1) |
| Shader Model | 4.0 | 6.4 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | N/A | 2.1 |
| Vulkan | N/A | 1.1.97 |
Pros & cons summary
| Recency | 6 November 2007 | 29 May 2019 |
| Chip lithography | 80 nm | 10 nm |
| Power consumption (TDP) | 150 Watt | 15 Watt |
UHD Graphics G1 has an age advantage of 11 years, a 700% more advanced lithography process, and 900% lower power consumption.
We couldn't decide between Radeon HD 2900 GT and UHD Graphics G1. We've got no test results to judge.
Be aware that Radeon HD 2900 GT is a desktop card while UHD Graphics G1 is a notebook 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
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
