Radeon RX 6400 vs HD 6450 GDDR5
Aggregated performance score
RX 6400 outperforms HD 6450 GDDR5 by a whopping 1911% based on our aggregated benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 1077 | 271 |
| Place by popularity | not in top-100 | 100 |
| Cost-effectiveness evaluation | 0.01 | 12.23 |
| Architecture | Terascale 2 (2009−2015) | RDNA 2.0 (2020−2022) |
| GPU code name | Caicos | Navi 24 |
| Market segment | Desktop | Desktop |
| Release date | 18 April 2011 (13 years ago) | 19 January 2022 (2 years ago) |
| Launch price (MSRP) | no data | $159 |
| Current price | $129 | $376 (2.4x MSRP) |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
RX 6400 has 122200% better value for money than HD 6450 GDDR5.
Detailed specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 160 | 768 |
| Core clock speed | 750 MHz | no data |
| Boost clock speed | no data | 2321 MHz |
| Number of transistors | no data | 5,400 million |
| Manufacturing process technology | 40 nm | 6 nm |
| Power consumption (TDP) | 27 Watt | 53 Watt |
| Texture fill rate | no data | 111.4 |
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 | no data | PCIe 4.0 x4 |
| Width | no data | 1-slot |
| Supplementary power connectors | no data | 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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 1 GB | 4 GB |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 900 MHz | 16 GB/s |
| Memory bandwidth | no data | 128.0 GB/s |
| Shared memory | - | no data |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | no data | 1x HDMI 2.1, 1x DisplayPort 1.4a |
| HDMI | no data | + |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 11 | 12 Ultimate (12_2) |
| Shader Model | no data | 6.6 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 2.2 |
| Vulkan | no data | 1.3 |
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:
| 900p | 7
−1900%
| 140−150
+1900%
|
| Full HD | 15
−1900%
| 300−350
+1900%
|
| 1200p | 5
−1900%
| 100−110
+1900%
|
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 3−4
−1900%
|
60−65
+1900%
|
Full HD
Medium Preset
| Call of Duty: Modern Warfare | 9−10
−1900%
|
180−190
+1900%
|
| Cyberpunk 2077 | 3−4
−1900%
|
60−65
+1900%
|
| Hitman 3 | 1−2
−1700%
|
18−20
+1700%
|
| Horizon Zero Dawn | 0−1 | 0−1 |
| Red Dead Redemption 2 | 3−4
−1900%
|
60−65
+1900%
|
| Shadow of the Tomb Raider | 7−8
−1900%
|
140−150
+1900%
|
Full HD
High Preset
| Call of Duty: Modern Warfare | 9−10
−1900%
|
180−190
+1900%
|
| Cyberpunk 2077 | 3−4
−1900%
|
60−65
+1900%
|
| Hitman 3 | 1−2
−1700%
|
18−20
+1700%
|
| Horizon Zero Dawn | 0−1 | 0−1 |
| Metro Exodus | 1−2
−1700%
|
18−20
+1700%
|
| Red Dead Redemption 2 | 3−4
−1900%
|
60−65
+1900%
|
| Shadow of the Tomb Raider | 7−8
−1900%
|
140−150
+1900%
|
| The Witcher 3: Wild Hunt | 3−4
−1900%
|
60−65
+1900%
|
Full HD
Ultra Preset
| Cyberpunk 2077 | 3−4
−1900%
|
60−65
+1900%
|
| The Witcher 3: Wild Hunt | 3−4
−1900%
|
60−65
+1900%
|
1440p
High Preset
| Call of Duty: Modern Warfare | 3−4
−1900%
|
60−65
+1900%
|
| Hitman 3 | 3−4
−1900%
|
60−65
+1900%
|
| Horizon Zero Dawn | 8−9
−1900%
|
160−170
+1900%
|
| Shadow of the Tomb Raider | 5−6
−1900%
|
100−105
+1900%
|
1440p
Ultra Preset
| Cyberpunk 2077 | 1−2
−1700%
|
18−20
+1700%
|
| Far Cry 5 | 2−3
−1900%
|
40−45
+1900%
|
| The Witcher 3: Wild Hunt | 1−2
−1700%
|
18−20
+1700%
|
4K
High Preset
| Call of Duty: Modern Warfare | 1−2
−1700%
|
18−20
+1700%
|
| Hitman 3 | 1−2
−1700%
|
18−20
+1700%
|
| Horizon Zero Dawn | 7−8
−1900%
|
140−150
+1900%
|
4K
Ultra Preset
| Far Cry 5 | 3−4
−1900%
|
60−65
+1900%
|
| Far Cry New Dawn | 5−6
−1900%
|
100−105
+1900%
|
This is how HD 6450 GDDR5 and RX 6400 compete in popular games:
- RX 6400 is 1900% faster in 900p
- RX 6400 is 1900% faster in 1080p
- RX 6400 is 1900% faster in 1200p
Pros & cons summary
| Performance score | 0.97 | 19.51 |
| Recency | 18 April 2011 | 19 January 2022 |
| Maximum RAM amount | 1 GB | 4 GB |
| Chip lithography | 40 nm | 6 nm |
| Power consumption (TDP) | 27 Watt | 53 Watt |
The Radeon RX 6400 is our recommended choice as it beats the Radeon HD 6450 GDDR5 in performance tests.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
