Radeon RX 6300M vs GeForce GT 640 OEM Rebrand
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 383 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 33.77 |
| Architecture | Fermi 2.0 (2010−2014) | RDNA 2.0 (2020−2025) |
| GPU code name | GF116 | Navi 24 |
| Market segment | Desktop | Laptop |
| Release date | 24 April 2012 (14 years ago) | 4 January 2022 (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. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 144 | 768 |
| Core clock speed | 720 MHz | 2000 MHz |
| Boost clock speed | no data | 2400 MHz |
| Number of transistors | 1,170 million | 5,400 million |
| Manufacturing process technology | 40 nm | 6 nm |
| Power consumption (TDP) | 75 Watt | 35 Watt |
| Texture fill rate | 17.28 | 115.2 |
| Floating-point processing power | 0.4147 TFLOPS | 3.686 TFLOPS |
| ROPs | 24 | 32 |
| TMUs | 24 | 48 |
| Ray Tracing Cores | no data | 12 |
| L0 Cache | no data | 192 KB |
| L1 Cache | 192 KB | 256 KB |
| L2 Cache | 384 KB | 1024 KB |
| L3 Cache | no data | 8 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 x4 |
| Length | 145 mm | no data |
| Width | 1-slot | no data |
| Supplementary power connectors | None | None |
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 | 1536 MB | 2 GB |
| Memory bus width | 192 Bit | 32 Bit |
| Memory clock speed | 800 MHz | 2250 MHz |
| Memory bandwidth | 38.4 GB/s | 72 GB/s |
| Shared memory | no data | - |
| 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 mini-HDMI | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.6 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 2.2 |
| Vulkan | N/A | 1.3 |
| CUDA | 2.1 | - |
Pros & cons summary
| Recency | 24 April 2012 | 4 January 2022 |
| Maximum RAM amount | 1536 MB | 2 GB |
| Chip lithography | 40 nm | 6 nm |
| Power consumption (TDP) | 75 Watt | 35 Watt |
RX 6300M has an age advantage of 9 years, a 33% higher maximum VRAM amount, a 567% more advanced lithography process, and 114% lower power consumption.
We couldn't decide between GeForce GT 640 OEM Rebrand and Radeon RX 6300M. We've got no test results to judge.
Be aware that GeForce GT 640 OEM Rebrand is a desktop graphics card while Radeon RX 6300M is a notebook one.
Other comparisons
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