Performance to price ratio. The higher, the better.
Radeon Sky 500 vs HD 7950
Aggregated performance score
HD 7950
2012
3072 MB GDDR5
12.30
Sky 500
2013
4096 MB GDDR5
12.30
General info
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 367 | 368 |
| Place by popularity | not in top-100 | not in top-100 |
| Value for money | 1.34 | 4.47 |
| Architecture | GCN 1.0 (2012−2020) | GCN 1.0 (2012−2020) |
| GPU code name | Tahiti | Pitcairn |
| Market segment | Desktop | Workstation |
| Design | reference | no data |
| Release date | 31 January 2012 (12 years old) | 27 March 2013 (11 years old) |
| Launch price (MSRP) | $449 | no data |
| Current price | $431 (1x MSRP) | $129 |
Value for money
Sky 500 has 234% better value for money than HD 7950.
Technical specs
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 | 1792 | 1280 |
| Compute units | 28 | no data |
| Core clock speed | no data | 950 MHz |
| Boost clock speed | 1250 MHz | no data |
| Number of transistors | 4,313 million | 2,800 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 200 Watt | 150 Watt |
| Texture fill rate | 89.60 | 76.00 |
| Floating-point performance | 2,867 gflops | 2,432 gflops |
Size and 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).
| Bus support | PCIe 3.0 x16 | PCIe 3.0 |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | 267 mm | 242 mm |
| Width | 2-slot | 1-slot |
| Form factor | no data | full height / full length |
| Supplementary power connectors | 2x 6-pin | 1x 6-pin |
Memory
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 | 3 GB | 4 GB |
| Memory bus width | 384 Bit | 256 Bit |
| Memory clock speed | 1250 MHz | 4800 MHz |
| Memory bandwidth | 240 GB/s | 154 GB/s |
Video outputs and ports
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 | 1x DVI, 1x HDMI, 2x mini-DisplayPort | 1x DisplayPort |
| Eyefinity | 1 | no data |
| Number of Eyefinity displays | 6 | no data |
| HDMI | + | no data |
| DisplayPort support | - | no data |
| DisplayPort count | no data | 1 |
| Dual-link DVI support | no data | 1 |
Technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| AppAcceleration | + | no data |
| CrossFire | 1 | no data |
| Enduro | - | no data |
| FreeSync | 1 | no data |
| HD3D | - | no data |
| PowerTune | + | no data |
| TrueAudio | - | no data |
| ZeroCore | + | no data |
API support
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 11 | 12 (11_1) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | no data | 1.2.131 |
| Mantle | - | no data |
Synthetic benchmark performance
Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.
Benchmark coverage: 25%
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Advantages and disadvantages
| Recency | 31 January 2012 | 27 March 2013 |
| Maximum RAM amount | 3 GB | 4 GB |
| Power consumption (TDP) | 200 Watt | 150 Watt |
Given the minimal performance differences, no clear winner can be declared between Radeon HD 7950 and Radeon Sky 500.
Be aware that Radeon HD 7950 is a desktop card while Radeon Sky 500 is a workstation one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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