ATI Radeon X1950 XT vs GeForce 945A
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 703 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 10.28 | no data |
| Architecture | Maxwell (2014−2017) | R500 (2005−2007) |
| GPU code name | GM108 | R580+ |
| Market segment | Laptop | Desktop |
| Release date | 13 March 2015 (10 years ago) | 17 October 2006 (19 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 | 384 | no data |
| Core clock speed | 1006 MHz | 625 MHz |
| Boost clock speed | 1189 MHz | no data |
| Number of transistors | no data | 384 million |
| Manufacturing process technology | 28 nm | 90 nm |
| Power consumption (TDP) | 33 Watt | 96 Watt |
| Texture fill rate | 28.54 | 10.00 |
| Floating-point processing power | 0.9132 TFLOPS | no data |
| ROPs | 8 | 16 |
| TMUs | 24 | 16 |
| L1 Cache | 192 KB | no data |
| L2 Cache | 1024 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 3.0 x8 | PCIe 1.0 x16 |
| Width | no data | 2-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 | GDDR3 |
| Maximum RAM amount | 1 GB | 256 MB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 1253 MHz | 900 MHz |
| Memory bandwidth | 40.1 GB/s | 57.6 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) | 9.0c (9_3) |
| Shader Model | 5.1 | 3.0 |
| OpenGL | 4.6 | 2.0 |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | 5.0 | - |
Pros & cons summary
| Recency | 13 March 2015 | 17 October 2006 |
| Maximum RAM amount | 1 GB | 256 MB |
| Chip lithography | 28 nm | 90 nm |
| Power consumption (TDP) | 33 Watt | 96 Watt |
GeForce 945A has an age advantage of 8 years, a 300% higher maximum VRAM amount, a 221.4% more advanced lithography process, and 190.9% lower power consumption.
We couldn't decide between GeForce 945A and Radeon X1950 XT. We've got no test results to judge.
Be aware that GeForce 945A is a notebook graphics card while Radeon X1950 XT is a desktop one.
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