Radeon HD 6450A vs 820M
Aggregate performance score
We've compared Radeon 820M and Radeon HD 6450A, covering specs and all relevant benchmarks.
820M outperforms HD 6450A by a whopping 723% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 676 | 1260 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 1.91 |
| Architecture | RDNA 3.5 (2024−2025) | TeraScale 2 (2009−2015) |
| GPU code name | Krackan Point | Caicos |
| Market segment | Laptop | Laptop |
| Release date | March 2025 (1 year ago) | 7 April 2011 (15 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 | 128 | 160 |
| Core clock speed | 400 MHz | 625 MHz |
| Boost clock speed | 2800 MHz | no data |
| Number of transistors | no data | 370 million |
| Manufacturing process technology | 4 nm | 40 nm |
| Power consumption (TDP) | 15 Watt | 25 Watt |
| Texture fill rate | 22.40 | 5.000 |
| Floating-point processing power | 0.7168 TFLOPS | 0.2 TFLOPS |
| ROPs | 4 | 4 |
| TMUs | 8 | 8 |
| Ray Tracing Cores | 2 | no data |
| L0 Cache | 32 KB | no data |
| L1 Cache | 32 KB | 16 KB |
| L2 Cache | 1024 KB | 128 KB |
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 | medium sized | no data |
| Interface | PCIe 4.0 x8 | MXM-A (3.0) |
| Supplementary power connectors | None | 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 | System Shared | DDR3 |
| Maximum RAM amount | System Shared | 512 MB |
| Memory bus width | System Shared | 64 Bit |
| Memory clock speed | System Shared | 533 MHz |
| Memory bandwidth | no data | 8.528 GB/s |
| Shared memory | + | no data |
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 | Portable Device Dependent | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 11.2 (11_0) |
| Shader Model | 6.8 | 5.0 |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 2.1 | 1.2 |
| Vulkan | 1.4 | N/A |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Average FPS across all PC games
Here are the average frames per second in a large set of popular games across different resolutions:
| Full HD | 10
+900%
| 1−2
−900%
|
FPS performance in popular games
Full HD
Low
| Counter-Strike 2 | 24−27
+1100%
|
2−3
−1100%
|
| Cyberpunk 2077 | 10−12
+1000%
|
1−2
−1000%
|
| Resident Evil 4 Remake | 8−9 | 0−1 |
Full HD
Medium
| Battlefield 5 | 21−24
+1000%
|
2−3
−1000%
|
| Counter-Strike 2 | 24−27
+1100%
|
2−3
−1100%
|
| Cyberpunk 2077 | 10−12
+1000%
|
1−2
−1000%
|
| Far Cry 5 | 16−18
+1500%
|
1−2
−1500%
|
| Fortnite | 30−35
+933%
|
3−4
−933%
|
| Forza Horizon 4 | 24−27
+1100%
|
2−3
−1100%
|
| Forza Horizon 5 | 14−16
+1400%
|
1−2
−1400%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 20−22
+900%
|
2−3
−900%
|
| Valorant | 60−65
+800%
|
7−8
−800%
|
Full HD
High
| Battlefield 5 | 21−24
+1000%
|
2−3
−1000%
|
| Counter-Strike 2 | 24−27
+1100%
|
2−3
−1100%
|
| Counter-Strike: Global Offensive | 85−90
+790%
|
10−11
−790%
|
| Cyberpunk 2077 | 10−12
+1000%
|
1−2
−1000%
|
| Far Cry 5 | 16−18
+1500%
|
1−2
−1500%
|
| Fortnite | 30−35
+933%
|
3−4
−933%
|
| Forza Horizon 4 | 24−27
+1100%
|
2−3
−1100%
|
| Forza Horizon 5 | 14−16
+1400%
|
1−2
−1400%
|
| Grand Theft Auto V | 16
+1500%
|
1−2
−1500%
|
| Metro Exodus | 10−11
+900%
|
1−2
−900%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 20−22
+900%
|
2−3
−900%
|
| The Witcher 3: Wild Hunt | 14−16
+1300%
|
1−2
−1300%
|
| Valorant | 60−65
+800%
|
7−8
−800%
|
Full HD
Ultra
| Battlefield 5 | 21−24
+1000%
|
2−3
−1000%
|
| Cyberpunk 2077 | 10−12
+1000%
|
1−2
−1000%
|
| Far Cry 5 | 16−18
+1500%
|
1−2
−1500%
|
| Forza Horizon 4 | 24−27
+1100%
|
2−3
−1100%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 20−22
+900%
|
2−3
−900%
|
| The Witcher 3: Wild Hunt | 14−16
+1300%
|
1−2
−1300%
|
Full HD
Epic
| Fortnite | 30−35
+933%
|
3−4
−933%
|
1440p
High
| Counter-Strike 2 | 10−11
+900%
|
1−2
−900%
|
| Counter-Strike: Global Offensive | 40−45
+900%
|
4−5
−900%
|
| Grand Theft Auto V | 4−5 | 0−1 |
| Metro Exodus | 4−5 | 0−1 |
| Valorant | 55−60
+850%
|
6−7
−850%
|
1440p
Ultra
| Battlefield 5 | 6−7 | 0−1 |
| Cyberpunk 2077 | 4−5 | 0−1 |
| Far Cry 5 | 10−11
+900%
|
1−2
−900%
|
| Forza Horizon 4 | 12−14
+1100%
|
1−2
−1100%
|
| The Witcher 3: Wild Hunt | 7−8 | 0−1 |
1440p
Epic
| Fortnite | 10−11
+900%
|
1−2
−900%
|
4K
High
| Grand Theft Auto V | 16−18
+1500%
|
1−2
−1500%
|
| The Witcher 3: Wild Hunt | 2−3 | 0−1 |
| Valorant | 24−27
+767%
|
3−4
−767%
|
4K
Ultra
| Battlefield 5 | 3−4 | 0−1 |
| Cyberpunk 2077 | 1−2 | 0−1 |
| Far Cry 5 | 4−5 | 0−1 |
| Forza Horizon 4 | 7−8 | 0−1 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 5−6 | 0−1 |
4K
Epic
| Fortnite | 5−6 | 0−1 |
This is how Radeon 820M and HD 6450A compete in popular games:
- Radeon 820M is 900% faster in 1080p
Pros & cons summary
| Performance score | 5.10 | 0.62 |
| Chip lithography | 4 nm | 40 nm |
| Power consumption (TDP) | 15 Watt | 25 Watt |
Radeon 820M has a 723% higher aggregate performance score, a 900% more advanced lithography process, and 67% lower power consumption.
The Radeon 820M is our recommended choice as it beats the Radeon HD 6450A in performance tests.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
