Radeon HD 7990 vs GeForce GTX TITAN X
Aggregate performance score
We've compared GeForce GTX TITAN X and Radeon HD 7990, covering specs and all relevant benchmarks.
GTX TITAN X outperforms HD 7990 by a whopping 133% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 155 | 357 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 8.22 | 1.48 |
| Architecture | Maxwell 2.0 (2015−2019) | GCN 1.0 (2012−2020) |
| GPU code name | GM200 | Malta |
| Market segment | Desktop | Desktop |
| Release date | 17 March 2015 (9 years ago) | 24 April 2013 (11 years ago) |
| Launch price (MSRP) | $999 | $999 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
GTX TITAN X has 455% better value for money than HD 7990.
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 | 3072 | 2048 |
| CUDA cores | 3072 | no data |
| Core clock speed | 1000 MHz | 950 MHz |
| Boost clock speed | 1075 MHz | 1000 MHz |
| Number of transistors | 8,000 million | 4,313 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 250 Watt | 375 Watt |
| Texture fill rate | 209.1 | 128.0 |
| Floating-point processing power | 6.691 gflops | 4.096 gflops |
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 | PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | 267 mm | 307 mm |
| Height | 4.376" (11.1 cm) | no data |
| Width | 2-slot | 2-slot |
| Recommended system power (PSU) | 600 Watt | no data |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | 2x 8-pin |
| SLI options | 4x | - |
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 | 12 GB | 3 GB |
| Memory bus width | 384 Bit | 384 Bit |
| Memory clock speed | 7.0 GB/s | 6000 MHz |
| Memory bandwidth | 336.5 GB/s | 288.0 GB/s |
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 | Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2 | 1x DVI, 4x mini-DisplayPort |
| Multi monitor support | 4 displays | no data |
| HDMI | + | - |
| HDCP | + | - |
| Maximum VGA resolution | 2048x1536 | no data |
| Audio input for HDMI | Internal | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| GameStream | + | - |
| GeForce ShadowPlay | + | - |
| GPU Boost | 2.0 | no data |
| GameWorks | + | - |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 (11_1) |
| Shader Model | 6.4 | 5.1 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.2.131 |
| CUDA | 5.2 | - |
Synthetic benchmark performance
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. 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. 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.
Pros & cons summary
| Performance score | 33.65 | 14.43 |
| Recency | 17 March 2015 | 24 April 2013 |
| Maximum RAM amount | 12 GB | 3 GB |
| Power consumption (TDP) | 250 Watt | 375 Watt |
GTX TITAN X has a 133.2% higher aggregate performance score, an age advantage of 1 year, a 300% higher maximum VRAM amount, and 50% lower power consumption.
The GeForce GTX TITAN X is our recommended choice as it beats the Radeon HD 7990 in performance tests.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
