GeForce GTX TITAN Z vs Radeon R9 390 X2
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 251 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 4.24 |
| Architecture | GCN 2.0 (2013−2017) | Kepler (2012−2018) |
| GPU code name | Grenada | GK110B |
| Market segment | Desktop | Desktop |
| Release date | 3 September 2015 (9 years ago) | 28 May 2014 (10 years ago) |
| Launch price (MSRP) | $1,399 | $2,999 |
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 | 2560 ×2 | 5760 ×2 |
| Core clock speed | 1000 MHz | 705 MHz |
| Boost clock speed | no data | 876 MHz |
| Number of transistors | 6,200 million | 7,080 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 580 Watt | 375 Watt |
| Texture fill rate | 160.0 ×2 | 210.2 ×2 |
| Floating-point processing power | 5.12 TFLOPS ×2 | 5.046 TFLOPS ×2 |
| ROPs | 64 ×2 | 48 ×2 |
| TMUs | 160 ×2 | 240 ×2 |
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).
| Bus support | no data | PCI Express 3.0 |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | no data | 267 mm |
| Height | no data | 4.376" (11.1 cm) |
| Width | 3-slot | 3-slot |
| Supplementary power connectors | 4x 8-pin | 2x 8-pin |
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 | 8 GB ×2 | 12 GB ×2 |
| Memory bus width | 512 Bit ×2 | 768-bit (384-bit per GPU) ×2 |
| Memory clock speed | 1350 MHz | 7.0 GB/s |
| Memory bandwidth | 345.6 GB/s ×2 | 672 GB/s ×2 |
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 | 2x DVI, 1x HDMI, 1x DisplayPort | One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort |
| Multi monitor support | no data | 4 displays |
| HDMI | + | + |
| HDCP | - | + |
| Maximum VGA resolution | no data | 2048x1536 |
| Audio input for HDMI | no data | Internal |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Blu Ray 3D | - | + |
| 3D Gaming | - | + |
| 3D Vision | - | + |
| 3D Vision Live | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 (11_1) |
| Shader Model | 6.3 | 5.1 |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2.131 | 1.1.126 |
| CUDA | - | + |
Pros & cons summary
| Recency | 3 September 2015 | 28 May 2014 |
| Maximum RAM amount | 8 GB | 12 GB |
| Power consumption (TDP) | 580 Watt | 375 Watt |
R9 390 X2 has an age advantage of 1 year.
GTX TITAN Z, on the other hand, has a 50% higher maximum VRAM amount, and 54.7% lower power consumption.
We couldn't decide between Radeon R9 390 X2 and GeForce GTX TITAN Z. We've got no test results to judge.
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