L20 vs ATI Radeon X1900 XTX
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 188 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 8.99 |
| Architecture | R500 (2005−2007) | Ada Lovelace (2022−2024) |
| GPU code name | R580 | AD102 |
| Market segment | Desktop | Workstation |
| Release date | 24 January 2006 (20 years ago) | 16 November 2023 (2 years ago) |
| Launch price (MSRP) | $399 | no data |
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 | no data | 11776 |
| Core clock speed | 650 MHz | 1440 MHz |
| Boost clock speed | no data | 2520 MHz |
| Number of transistors | 384 million | 76,300 million |
| Manufacturing process technology | 90 nm | 5 nm |
| Power consumption (TDP) | 135 Watt | 275 Watt |
| Texture fill rate | 10.40 | 927.4 |
| Floating-point processing power | no data | 59.35 TFLOPS |
| ROPs | 16 | 128 |
| TMUs | 16 | 368 |
| Tensor Cores | no data | 368 |
| Ray Tracing Cores | no data | 92 |
| L1 Cache | no data | 11.5 MB |
| L2 Cache | no data | 96 MB |
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 4.0 x16 |
| Length | 242 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin | 1x 16-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 | GDDR3 | GDDR6 |
| Maximum RAM amount | 512 MB | 48 GB |
| Memory bus width | 256 Bit | 384 Bit |
| Memory clock speed | 775 MHz | 2250 MHz |
| Memory bandwidth | 49.6 GB/s | 864.0 GB/s |
| Resizable BAR | - | + |
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 | 2x DVI, 1x S-Video | 4x DisplayPort 1.4a |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0c (9_3) | 12 Ultimate (12_2) |
| Shader Model | 3.0 | 6.7 |
| OpenGL | 2.1 (full) 3.0 (partial) | 4.6 |
| OpenCL | N/A | 3.0 |
| Vulkan | N/A | 1.3 |
| CUDA | - | 8.9 |
| DLSS | - | + |
Pros & cons summary
| Recency | 24 January 2006 | 16 November 2023 |
| Maximum RAM amount | 512 MB | 48 GB |
| Chip lithography | 90 nm | 5 nm |
| Power consumption (TDP) | 135 Watt | 275 Watt |
ATI X1900 XTX has 104% lower power consumption.
L20, on the other hand, has an age advantage of 17 years, a 9500% higher maximum VRAM amount, and a 1700% more advanced lithography process.
We couldn't decide between Radeon X1900 XTX and L20. We've got no test results to judge.
Be aware that Radeon X1900 XTX is a desktop graphics card while L20 is a workstation one.
Other comparisons
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