Radeon RX 6400 vs HD 6450 GDDR5
Aggregate performance score
We've compared Radeon HD 6450 GDDR5 and Radeon RX 6400, covering specs and all relevant benchmarks.
RX 6400 outperforms HD 6450 GDDR5 by a whopping 1947% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1129 | 292 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 53.66 |
| Power efficiency | 2.46 | 25.69 |
| Architecture | Terascale 2 (2009−2015) | RDNA 2.0 (2020−2024) |
| GPU code name | Caicos | Navi 24 |
| Market segment | Desktop | Desktop |
| Release date | 18 April 2011 (13 years ago) | 19 January 2022 (3 years ago) |
| Launch price (MSRP) | no data | $159 |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
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 | 160 | 768 |
| Core clock speed | 750 MHz | 1923 MHz |
| 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 |
| Floating-point processing power | no data | 3.565 TFLOPS |
| ROPs | no data | 32 |
| TMUs | no data | 48 |
| Ray Tracing Cores | no data | 12 |
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 | 2000 MHz |
| Memory bandwidth | no data | 128.0 GB/s |
| Shared memory | - | - |
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 | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11 | 12 Ultimate (12_2) |
| Shader Model | no data | 6.7 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 2.2 |
| Vulkan | - | 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%
|
Cost per frame, $
| 1080p | no data | 0.53 |
FPS performance in popular games
Full HD
Low Preset
| Atomic Heart | 3−4
−1900%
|
60−65
+1900%
|
| Counter-Strike 2 | 8−9
−1900%
|
160−170
+1900%
|
| Cyberpunk 2077 | 2−3
−1900%
|
40−45
+1900%
|
Full HD
Medium Preset
| Atomic Heart | 3−4
−1900%
|
60−65
+1900%
|
| Counter-Strike 2 | 8−9
−1900%
|
160−170
+1900%
|
| Cyberpunk 2077 | 2−3
−1900%
|
40−45
+1900%
|
| Fortnite | 0−1 | 0−1 |
| Forza Horizon 4 | 5−6
−1900%
|
100−105
+1900%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−1900%
|
160−170
+1900%
|
| Valorant | 30−35
−1835%
|
600−650
+1835%
|
Full HD
High Preset
| Atomic Heart | 3−4
−1900%
|
60−65
+1900%
|
| Counter-Strike 2 | 8−9
−1900%
|
160−170
+1900%
|
| Counter-Strike: Global Offensive | 29
−1797%
|
550−600
+1797%
|
| Cyberpunk 2077 | 2−3
−1900%
|
40−45
+1900%
|
| Dota 2 | 14−16
−1900%
|
280−290
+1900%
|
| Fortnite | 0−1 | 0−1 |
| Forza Horizon 4 | 5−6
−1900%
|
100−105
+1900%
|
| Metro Exodus | 1−2
−1700%
|
18−20
+1700%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−1900%
|
160−170
+1900%
|
| The Witcher 3: Wild Hunt | 5−6
−1900%
|
100−105
+1900%
|
| Valorant | 30−35
−1835%
|
600−650
+1835%
|
Full HD
Ultra Preset
| Counter-Strike 2 | 8−9
−1900%
|
160−170
+1900%
|
| Cyberpunk 2077 | 2−3
−1900%
|
40−45
+1900%
|
| Dota 2 | 14−16
−1900%
|
280−290
+1900%
|
| Forza Horizon 4 | 5−6
−1900%
|
100−105
+1900%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−1900%
|
160−170
+1900%
|
| The Witcher 3: Wild Hunt | 5−6
−1900%
|
100−105
+1900%
|
| Valorant | 30−35
−1835%
|
600−650
+1835%
|
Full HD
Epic Preset
| Fortnite | 0−1 | 0−1 |
1440p
High Preset
| Counter-Strike 2 | 1−2
−1700%
|
18−20
+1700%
|
| Counter-Strike: Global Offensive | 5−6
−1900%
|
100−105
+1900%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 5−6
−1900%
|
100−105
+1900%
|
1440p
Ultra Preset
| Cyberpunk 2077 | 1−2
−1700%
|
18−20
+1700%
|
| Far Cry 5 | 0−1 | 0−1 |
| Forza Horizon 4 | 2−3
−1900%
|
40−45
+1900%
|
| The Witcher 3: Wild Hunt | 2−3
−1900%
|
40−45
+1900%
|
1440p
Epic Preset
| Fortnite | 1−2
−1700%
|
18−20
+1700%
|
4K
High Preset
| Atomic Heart | 0−1 | 0−1 |
| Grand Theft Auto V | 14−16
−1900%
|
300−310
+1900%
|
| Valorant | 5−6
−1900%
|
100−105
+1900%
|
4K
Ultra Preset
| Cyberpunk 2077 | 0−1 | 0−1 |
| Far Cry 5 | 1−2
−1700%
|
18−20
+1700%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 2−3
−1900%
|
40−45
+1900%
|
4K
Epic Preset
| Fortnite | 2−3
−1900%
|
40−45
+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 | 19.86 |
| 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 |
HD 6450 GDDR5 has 96.3% lower power consumption.
RX 6400, on the other hand, has a 1947.4% higher aggregate performance score, an age advantage of 10 years, a 300% higher maximum VRAM amount, and a 566.7% more advanced lithography process.
The Radeon RX 6400 is our recommended choice as it beats the Radeon HD 6450 GDDR5 in performance tests.
Other comparisons
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