RTX A4500 Mobile vs ATI Radeon HD 4855
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 120 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 21.77 |
| Architecture | TeraScale (2005−2013) | Ampere (2020−2025) |
| GPU code name | RV770 | GA104 |
| Market segment | Desktop | Mobile workstation |
| Release date | 3 January 2010 (15 years ago) | 22 March 2022 (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 | 640 | 5888 |
| Core clock speed | 575 MHz | 930 MHz |
| Boost clock speed | no data | 1500 MHz |
| Number of transistors | 956 million | 17,400 million |
| Manufacturing process technology | 55 nm | 8 nm |
| Power consumption (TDP) | 110 Watt | 140 Watt |
| Texture fill rate | 18.40 | 276.0 |
| Floating-point processing power | 0.736 TFLOPS | 17.66 TFLOPS |
| ROPs | 16 | 96 |
| TMUs | 32 | 184 |
| Tensor Cores | no data | 184 |
| Ray Tracing Cores | no data | 46 |
| L1 Cache | 128 KB | 5.8 MB |
| L2 Cache | 256 KB | 4 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).
| Laptop size | no data | large |
| Interface | PCIe 2.0 x16 | PCIe 4.0 x16 |
| Length | 220 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 6-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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 512 MB | 16 GB |
| Memory bus width | 256 Bit | 256 Bit |
| Memory clock speed | 900 MHz | 2000 MHz |
| Memory bandwidth | 115.2 GB/s | 512.0 GB/s |
| Shared memory | - | - |
| 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 | 1x DVI, 1x HDMI, 1x VGA | Portable Device Dependent |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 10.1 (10_1) | 12 Ultimate (12_2) |
| Shader Model | 4.1 | 6.7 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 3.0 |
| Vulkan | N/A | 1.3 |
| CUDA | - | 8.6 |
| DLSS | - | + |
Pros & cons summary
| Recency | 3 January 2010 | 22 March 2022 |
| Maximum RAM amount | 512 MB | 16 GB |
| Chip lithography | 55 nm | 8 nm |
| Power consumption (TDP) | 110 Watt | 140 Watt |
ATI HD 4855 has 27.3% lower power consumption.
RTX A4500 Mobile, on the other hand, has an age advantage of 12 years, a 3100% higher maximum VRAM amount, and a 587.5% more advanced lithography process.
We couldn't decide between Radeon HD 4855 and RTX A4500 Mobile. We've got no test results to judge.
Be aware that Radeon HD 4855 is a desktop graphics card while RTX A4500 Mobile is a mobile workstation one.
Other comparisons
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