Radeon RX 640 vs Sky 500
Aggregate performance score
We've compared Radeon Sky 500 with Radeon RX 640, including specs and performance data.
Sky 500 outperforms RX 640 by a whopping 114% 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 | 460 | 667 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 5.79 | 8.13 |
| Architecture | GCN 1.0 (2012−2020) | GCN 4.0 (2016−2020) |
| GPU code name | Pitcairn | Polaris 23 |
| Market segment | Workstation | Laptop |
| Release date | 27 March 2013 (12 years ago) | 13 May 2019 (6 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 | 1280 | 640 |
| Core clock speed | 950 MHz | 1082 MHz |
| Boost clock speed | no data | 1218 MHz |
| Number of transistors | 2,800 million | 2,200 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | 150 Watt | 50 Watt |
| Texture fill rate | 76.00 | 48.72 |
| Floating-point processing power | 2.432 TFLOPS | 1.559 TFLOPS |
| ROPs | 32 | 16 |
| TMUs | 80 | 40 |
| L1 Cache | 320 KB | 160 KB |
| L2 Cache | 512 KB | 512 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 | no data | large |
| Bus support | PCIe 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Length | 242 mm | no data |
| Width | 1-slot | no data |
| Form factor | full height / full length | no data |
| Supplementary power connectors | 1x 6-pin | 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 | GDDR5 |
| Maximum RAM amount | 4 GB | 2 GB |
| Memory bus width | 256 Bit | 64 Bit |
| Memory clock speed | 1200 MHz | 1500 MHz |
| Memory bandwidth | 154 GB/s | 48 GB/s |
| Shared memory | - | - |
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 | 1x DisplayPort | No outputs |
| DisplayPort count | 1 | no data |
| Dual-link DVI support | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| FreeSync | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 (12_0) |
| Shader Model | 5.1 | 6.4 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.2.131 | 1.2.131 |
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 | 55−60
+104%
| 27
−104%
|
FPS performance in popular games
Full HD
Low
| Counter-Strike 2 | 24−27
+0%
|
24−27
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Hogwarts Legacy | 10−12
+0%
|
10−12
+0%
|
Full HD
Medium
| Battlefield 5 | 30
+0%
|
30
+0%
|
| Counter-Strike 2 | 24−27
+0%
|
24−27
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Far Cry 5 | 21
+0%
|
21
+0%
|
| Fortnite | 30−35
+0%
|
30−35
+0%
|
| Forza Horizon 4 | 24−27
+0%
|
24−27
+0%
|
| Forza Horizon 5 | 14−16
+0%
|
14−16
+0%
|
| Hogwarts Legacy | 10−12
+0%
|
10−12
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 20−22
+0%
|
20−22
+0%
|
| Valorant | 60−65
+0%
|
60−65
+0%
|
Full HD
High
| Battlefield 5 | 23
+0%
|
23
+0%
|
| Counter-Strike 2 | 24−27
+0%
|
24−27
+0%
|
| Counter-Strike: Global Offensive | 90−95
+0%
|
90−95
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Dota 2 | 53
+0%
|
53
+0%
|
| Far Cry 5 | 16−18
+0%
|
16−18
+0%
|
| Fortnite | 30−35
+0%
|
30−35
+0%
|
| Forza Horizon 4 | 24−27
+0%
|
24−27
+0%
|
| Forza Horizon 5 | 14−16
+0%
|
14−16
+0%
|
| Grand Theft Auto V | 18−20
+0%
|
18−20
+0%
|
| Hogwarts Legacy | 10−12
+0%
|
10−12
+0%
|
| Metro Exodus | 10−11
+0%
|
10−11
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 20−22
+0%
|
20−22
+0%
|
| The Witcher 3: Wild Hunt | 20
+0%
|
20
+0%
|
| Valorant | 60−65
+0%
|
60−65
+0%
|
Full HD
Ultra
| Battlefield 5 | 21−24
+0%
|
21−24
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Dota 2 | 49
+0%
|
49
+0%
|
| Far Cry 5 | 16−18
+0%
|
16−18
+0%
|
| Forza Horizon 4 | 24−27
+0%
|
24−27
+0%
|
| Hogwarts Legacy | 10−12
+0%
|
10−12
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 20−22
+0%
|
20−22
+0%
|
| The Witcher 3: Wild Hunt | 11
+0%
|
11
+0%
|
| Valorant | 60−65
+0%
|
60−65
+0%
|
Full HD
Epic
| Fortnite | 30−35
+0%
|
30−35
+0%
|
1440p
High
| Counter-Strike 2 | 10−11
+0%
|
10−11
+0%
|
| Counter-Strike: Global Offensive | 40−45
+0%
|
40−45
+0%
|
| Grand Theft Auto V | 4−5
+0%
|
4−5
+0%
|
| Metro Exodus | 4−5
+0%
|
4−5
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 35−40
+0%
|
35−40
+0%
|
| Valorant | 55−60
+0%
|
55−60
+0%
|
1440p
Ultra
| Battlefield 5 | 6−7
+0%
|
6−7
+0%
|
| Cyberpunk 2077 | 4−5
+0%
|
4−5
+0%
|
| Far Cry 5 | 10−11
+0%
|
10−11
+0%
|
| Forza Horizon 4 | 12−14
+0%
|
12−14
+0%
|
| Hogwarts Legacy | 6−7
+0%
|
6−7
+0%
|
| The Witcher 3: Wild Hunt | 8−9
+0%
|
8−9
+0%
|
1440p
Epic
| Fortnite | 10−12
+0%
|
10−12
+0%
|
4K
High
| Grand Theft Auto V | 16−18
+0%
|
16−18
+0%
|
| Hogwarts Legacy | 1−2
+0%
|
1−2
+0%
|
| The Witcher 3: Wild Hunt | 2−3
+0%
|
2−3
+0%
|
| Valorant | 27−30
+0%
|
27−30
+0%
|
4K
Ultra
| Battlefield 5 | 3−4
+0%
|
3−4
+0%
|
| Cyberpunk 2077 | 1−2
+0%
|
1−2
+0%
|
| Dota 2 | 18−20
+0%
|
18−20
+0%
|
| Far Cry 5 | 4−5
+0%
|
4−5
+0%
|
| Forza Horizon 4 | 8−9
+0%
|
8−9
+0%
|
| Hogwarts Legacy | 1−2
+0%
|
1−2
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 5−6
+0%
|
5−6
+0%
|
4K
Epic
| Fortnite | 5−6
+0%
|
5−6
+0%
|
This is how Sky 500 and RX 640 compete in popular games:
- Sky 500 is 104% faster in 1080p
All in all, in popular games:
- there's a draw in 63 tests (100%)
Pros & cons summary
| Performance score | 11.29 | 5.28 |
| Recency | 27 March 2013 | 13 May 2019 |
| Maximum RAM amount | 4 GB | 2 GB |
| Chip lithography | 28 nm | 14 nm |
| Power consumption (TDP) | 150 Watt | 50 Watt |
Sky 500 has a 113.8% higher aggregate performance score, and a 100% higher maximum VRAM amount.
RX 640, on the other hand, has an age advantage of 6 years, a 100% more advanced lithography process, and 200% lower power consumption.
The Radeon Sky 500 is our recommended choice as it beats the Radeon RX 640 in performance tests.
Be aware that Radeon Sky 500 is a workstation graphics card while Radeon RX 640 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.
