RTX A4000H vs Radeon HD 6625M
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 226 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 15.49 |
| Architecture | TeraScale 2 (2009−2015) | Ampere (2020−2025) |
| GPU code name | Whistler | GA104 |
| Market segment | Laptop | Workstation |
| Release date | 4 January 2011 (14 years ago) | 12 April 2021 (4 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 | 480 | 6144 |
| Core clock speed | 450 MHz | 735 MHz |
| Boost clock speed | no data | 1560 MHz |
| Number of transistors | 716 million | 17,400 million |
| Manufacturing process technology | 40 nm | 8 nm |
| Power consumption (TDP) | 26 Watt | 140 Watt |
| Texture fill rate | 10.80 | 299.5 |
| Floating-point processing power | 0.432 TFLOPS | 19.17 TFLOPS |
| ROPs | 8 | 96 |
| TMUs | 24 | 192 |
| Tensor Cores | no data | 192 |
| Ray Tracing Cores | no data | 48 |
| L1 Cache | 48 KB | 6 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).
| Interface | PCIe 2.0 x16 | PCIe 4.0 x16 |
| Length | no data | 241 mm |
| Width | no data | 1-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 | DDR3 | GDDR6 |
| Maximum RAM amount | 1 GB | 16 GB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 800 MHz | 1750 MHz |
| Memory bandwidth | 25.6 GB/s | 448.0 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 | No outputs | 4x DisplayPort 1.4a |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.0 | 6.7 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | N/A | 1.3 |
| CUDA | - | 8.6 |
| DLSS | - | + |
Pros & cons summary
| Recency | 4 January 2011 | 12 April 2021 |
| Maximum RAM amount | 1 GB | 16 GB |
| Chip lithography | 40 nm | 8 nm |
| Power consumption (TDP) | 26 Watt | 140 Watt |
HD 6625M has 438.5% lower power consumption.
RTX A4000H, on the other hand, has an age advantage of 10 years, a 1500% higher maximum VRAM amount, and a 400% more advanced lithography process.
We couldn't decide between Radeon HD 6625M and RTX A4000H. We've got no test results to judge.
Be aware that Radeon HD 6625M is a notebook graphics card while RTX A4000H is a workstation one.
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