Radeon RX 6600S vs HD 6450 GDDR5
Aggregate performance score
We've compared Radeon HD 6450 GDDR5 with Radeon RX 6600S, including specs and performance data.
6600S outperforms HD 6450 GDDR5 by a whopping 3398% 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 | 1191 | 199 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.54 | 29.96 |
| Architecture | Terascale 2 (2009−2015) | RDNA 2.0 (2020−2025) |
| GPU code name | Caicos | Navi 23 |
| Market segment | Desktop | Laptop |
| Release date | 18 April 2011 (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. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 160 | 1792 |
| Core clock speed | 750 MHz | 1700 MHz |
| Boost clock speed | no data | 2000 MHz |
| Number of transistors | no data | 11,060 million |
| Manufacturing process technology | 40 nm | 7 nm |
| Power consumption (TDP) | 27 Watt | 80 Watt |
| Texture fill rate | no data | 224.0 |
| Floating-point processing power | no data | 7.168 TFLOPS |
| ROPs | no data | 64 |
| TMUs | no data | 112 |
| Ray Tracing Cores | no data | 28 |
| L0 Cache | no data | 448 KB |
| L1 Cache | no data | 512 KB |
| L2 Cache | no data | 2 MB |
| L3 Cache | no data | 32 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).
| Laptop size | no data | medium sized |
| Interface | no data | PCIe 4.0 x8 |
| 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 | 128 Bit |
| Memory clock speed | 900 MHz | 1750 MHz |
| Memory bandwidth | no data | 224.0 GB/s |
| Shared memory | - | - |
| 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 data | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11 | 12 Ultimate (12_2) |
| Shader Model | no data | 6.5 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 2.1 |
| Vulkan | - | 1.3 |
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.
3DMark Fire Strike Graphics
Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.
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
−3329%
| 240−250
+3329%
|
| Full HD | 15
−3233%
| 500−550
+3233%
|
| 1200p | 5
−3300%
| 170−180
+3300%
|
FPS performance in popular games
Full HD
Low
| Cyberpunk 2077 | 2−3
−3450%
|
70−75
+3450%
|
Full HD
Medium
| Cyberpunk 2077 | 2−3
−3450%
|
70−75
+3450%
|
| Far Cry 5 | 1−2
−10100%
|
100−110
+10100%
|
| Fortnite | 1−2
−14200%
|
140−150
+14200%
|
| Forza Horizon 4 | 6−7
−1950%
|
120−130
+1950%
|
| Forza Horizon 5 | 0−1 | 100−105 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−1488%
|
120−130
+1488%
|
| Valorant | 30−33
−557%
|
190−200
+557%
|
Full HD
High
| Counter-Strike: Global Offensive | 29
−855%
|
270−280
+855%
|
| Cyberpunk 2077 | 2−3
−3450%
|
70−75
+3450%
|
| Dota 2 | 14−16
−871%
|
130−140
+871%
|
| Far Cry 5 | 1−2
−10100%
|
100−110
+10100%
|
| Fortnite | 1−2
−14200%
|
140−150
+14200%
|
| Forza Horizon 4 | 6−7
−1950%
|
120−130
+1950%
|
| Forza Horizon 5 | 0−1 | 100−105 |
| Metro Exodus | 1−2
−7200%
|
70−75
+7200%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−1488%
|
120−130
+1488%
|
| The Witcher 3: Wild Hunt | 6−7
−1617%
|
100−110
+1617%
|
| Valorant | 30−33
−557%
|
190−200
+557%
|
Full HD
Ultra
| Cyberpunk 2077 | 2−3
−3450%
|
70−75
+3450%
|
| Dota 2 | 14−16
−871%
|
130−140
+871%
|
| Far Cry 5 | 1−2
−10100%
|
100−110
+10100%
|
| Forza Horizon 4 | 6−7
−1950%
|
120−130
+1950%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
−1488%
|
120−130
+1488%
|
| The Witcher 3: Wild Hunt | 6−7
−1617%
|
100−110
+1617%
|
| Valorant | 30−33
−557%
|
190−200
+557%
|
Full HD
Epic
| Fortnite | 1−2
−14200%
|
140−150
+14200%
|
1440p
High
| Counter-Strike 2 | 4−5
−1750%
|
70−75
+1750%
|
| Counter-Strike: Global Offensive | 5−6
−4320%
|
220−230
+4320%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
−1844%
|
170−180
+1844%
|
1440p
Ultra
| Cyberpunk 2077 | 0−1 | 30−35 |
| Far Cry 5 | 0−1 | 75−80 |
| Forza Horizon 4 | 2−3
−4150%
|
85−90
+4150%
|
| The Witcher 3: Wild Hunt | 2−3
−2650%
|
55−60
+2650%
|
1440p
Epic
| Fortnite | 1−2
−7900%
|
80−85
+7900%
|
4K
High
| Grand Theft Auto V | 14−16
−357%
|
60−65
+357%
|
| Valorant | 4−5
−4700%
|
190−200
+4700%
|
4K
Ultra
| PLAYERUNKNOWN'S BATTLEGROUNDS | 2−3
−1800%
|
35−40
+1800%
|
4K
Epic
| Fortnite | 2−3
−1800%
|
35−40
+1800%
|
Full HD
Low
| Counter-Strike 2 | 170−180
+0%
|
170−180
+0%
|
| Resident Evil 4 Remake | 80−85
+0%
|
80−85
+0%
|
Full HD
Medium
| Battlefield 5 | 110−120
+0%
|
110−120
+0%
|
| Counter-Strike 2 | 170−180
+0%
|
170−180
+0%
|
Full HD
High
| Battlefield 5 | 110−120
+0%
|
110−120
+0%
|
| Counter-Strike 2 | 170−180
+0%
|
170−180
+0%
|
| Grand Theft Auto V | 110−120
+0%
|
110−120
+0%
|
Full HD
Ultra
| Battlefield 5 | 110−120
+0%
|
110−120
+0%
|
1440p
High
| Grand Theft Auto V | 60−65
+0%
|
60−65
+0%
|
| Metro Exodus | 40−45
+0%
|
40−45
+0%
|
| Valorant | 230−240
+0%
|
230−240
+0%
|
1440p
Ultra
| Battlefield 5 | 80−85
+0%
|
80−85
+0%
|
4K
High
| Counter-Strike 2 | 30−35
+0%
|
30−35
+0%
|
| Metro Exodus | 27−30
+0%
|
27−30
+0%
|
| The Witcher 3: Wild Hunt | 45−50
+0%
|
45−50
+0%
|
4K
Ultra
| Battlefield 5 | 50−55
+0%
|
50−55
+0%
|
| Counter-Strike 2 | 30−35
+0%
|
30−35
+0%
|
| Cyberpunk 2077 | 14−16
+0%
|
14−16
+0%
|
| Dota 2 | 95−100
+0%
|
95−100
+0%
|
| Far Cry 5 | 35−40
+0%
|
35−40
+0%
|
| Forza Horizon 4 | 55−60
+0%
|
55−60
+0%
|
This is how HD 6450 GDDR5 and RX 6600S compete in popular games:
- RX 6600S is 3329% faster in 900p
- RX 6600S is 3233% faster in 1080p
- RX 6600S is 3300% faster in 1200p
Here's the range of performance differences observed across popular games:
- in Fortnite, with 1080p resolution and the Medium Preset, the RX 6600S is 14200% faster.
All in all, in popular games:
- RX 6600S performs better in 35 tests (63%)
- there's a draw in 21 tests (38%)
Pros & cons summary
| Performance score | 0.89 | 31.13 |
| Recency | 18 April 2011 | 4 January 2022 |
| Maximum RAM amount | 1 GB | 4 GB |
| Chip lithography | 40 nm | 7 nm |
| Power consumption (TDP) | 27 Watt | 80 Watt |
HD 6450 GDDR5 has 196% lower power consumption.
RX 6600S, on the other hand, has a 3398% higher aggregate performance score, an age advantage of 10 years, a 300% higher maximum VRAM amount, and a 471% more advanced lithography process.
The Radeon RX 6600S is our recommended choice as it beats the Radeon HD 6450 GDDR5 in performance tests.
Be aware that Radeon HD 6450 GDDR5 is a desktop graphics card while Radeon RX 6600S is a notebook one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
