GeForce GTX 660 vs Radeon RX 7800M
Aggregate performance score
We've compared Radeon RX 7800M with GeForce GTX 660, including specs and performance data.
RX 7800M outperforms GTX 660 by a whopping 311% 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 | 115 | 476 |
| Place by popularity | not in top-100 | 93 |
| Cost-effectiveness evaluation | no data | 2.93 |
| Power efficiency | 16.67 | 5.22 |
| Architecture | RDNA 3.0 (2022−2025) | Kepler (2012−2018) |
| GPU code name | Navi 32 | GK106 |
| Market segment | Laptop | Desktop |
| Release date | 11 September 2024 (less than a year ago) | 6 September 2012 (12 years ago) |
| Launch price (MSRP) | no data | $229 |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
Performance to price scatter graph
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 | 3840 | 960 |
| Core clock speed | 1295 MHz | 980 MHz |
| Boost clock speed | 2335 MHz | 1033 MHz |
| Number of transistors | 28,100 million | 2,540 million |
| Manufacturing process technology | 5 nm | 28 nm |
| Power consumption (TDP) | 180 Watt | 140 Watt |
| Texture fill rate | 560.4 | 82.56 |
| Floating-point processing power | 35.87 TFLOPS | 1.981 TFLOPS |
| ROPs | 96 | 24 |
| TMUs | 240 | 80 |
| Ray Tracing Cores | 60 | no data |
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 4.0 x16 | PCIe 3.0 x16 |
| Length | no data | 241 mm |
| Height | no data | 4.376" (11.1 cm) |
| Width | no data | 2-slot |
| Supplementary power connectors | None | 1x 6-pin |
| SLI options | - | + |
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 | GDDR6 | GDDR5 |
| Maximum RAM amount | 12 GB | 2 GB |
| Memory bus width | 192 Bit | 192-bit GDDR5 |
| Memory clock speed | 2250 MHz | 6.0 GB/s |
| Memory bandwidth | 432.0 GB/s | 144.2 GB/s |
| Resizable BAR | + | - |
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 | Portable Device Dependent | 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.
| 3D Blu-Ray | - | + |
| 3D Gaming | - | + |
| 3D Vision | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 (11_0) |
| Shader Model | 6.8 | 5.1 |
| OpenGL | 4.6 | 4.3 |
| OpenCL | 2.2 | 1.2 |
| Vulkan | 1.3 | 1.1.126 |
| CUDA | - | + |
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.
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 | 190−200
+304%
| 47
−304%
|
Cost per frame, $
| 1080p | no data | 4.87 |
Pros & cons summary
| Performance score | 38.24 | 9.31 |
| Recency | 11 September 2024 | 6 September 2012 |
| Maximum RAM amount | 12 GB | 2 GB |
| Chip lithography | 5 nm | 28 nm |
| Power consumption (TDP) | 180 Watt | 140 Watt |
RX 7800M has a 310.7% higher aggregate performance score, an age advantage of 12 years, a 500% higher maximum VRAM amount, and a 460% more advanced lithography process.
GTX 660, on the other hand, has 28.6% lower power consumption.
The Radeon RX 7800M is our recommended choice as it beats the GeForce GTX 660 in performance tests.
Be aware that Radeon RX 7800M is a notebook graphics card while GeForce GTX 660 is a desktop one.
Other comparisons
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