GeForce GTX 660M vs Radeon HD 4850 X2
When choosing between GeForce GTX 660M and Radeon HD 4850 X2, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 660M and Radeon HD 4850 X2.
Radeon HD 4850 X2
GeForce GTX 660M is a Laptop Graphics Card
Note: GeForce GTX 660M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GTX 660M here:
Main Specs
| GeForce GTX 660M | Radeon HD 4850 X2 | |
| Power consumption (TDP) | 50 Watt | 250 Watt |
| Interface | MXM-B (3.0) | PCIe 2.0 x16 |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | |
| Memory type | GDDR5 | GDDR3 |
| Maximum RAM amount | 2 GB | 512 MB |
| Display Connectors | No outputs | 4x DVI, 1x S-Video |
| Check Price |
- Radeon HD 4850 X2 has 400% more power consumption, than GeForce GTX 660M.
- GeForce GTX 660M is connected by MXM-B (3.0), and Radeon HD 4850 X2 uses PCIe 2.0 x16 interface.
- Radeon HD 4850 X2 has 510 GB more memory, than GeForce GTX 660M.
- GeForce GTX 660M is used in Laptops, and Radeon HD 4850 X2 - in Desktops.
- GeForce GTX 660M is build with Kepler architecture, and Radeon HD 4850 X2 - with TeraScale.
- Core clock speed of GeForce GTX 660M is 210 MHz higher, than Radeon HD 4850 X2.
- GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon HD 4850 X2 - by 55 nm process technology.
- Memory clock speed of GeForce GTX 660M is 10 MHz higher, than Radeon HD 4850 X2.
Game benchmarks
| high / 1080p | 6−7 | 3−4 |
| ultra / 1080p | 4−5 | 2−3 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 16−18 | 14−16 |
| medium / 1080p | 8−9 | 5−6 |
| The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 50% more, than Radeon HD 4850 X2. | ||
| high / 1080p | 12−14 | − |
| ultra / 1080p | 10−11 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 24−27 | 18−20 |
| medium / 1080p | 12−14 | 8−9 |
| The average gaming FPS of GeForce GTX 660M in Battlefield 5 is 45% more, than Radeon HD 4850 X2. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 45−50 | 30−35 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GTX 660M in Call of Duty: Warzone is 17% more, than Radeon HD 4850 X2. | ||
| low / 768p | 130−140 | 120−130 |
| medium / 768p | 110−120 | 90−95 |
| ultra / 1080p | 50−55 | 40−45 |
| QHD / 1440p | 27−30 | 24−27 |
| 4K / 2160p | 27−30 | 18−20 |
| high / 768p | 80−85 | 65−70 |
| The average gaming FPS of GeForce GTX 660M in Counter-Strike: Global Offensive is 17% more, than Radeon HD 4850 X2. | ||
| low / 768p | 55−60 | 80−85 |
| ultra / 1080p | 18−20 | 14−16 |
| medium / 1080p | 45−50 | 40−45 |
| The average gaming FPS of Radeon HD 4850 X2 in Cyberpunk 2077 is 12% more, than GeForce GTX 660M. | ||
| low / 768p | 80−85 | 75−80 |
| medium / 768p | 55−60 | 50−55 |
| ultra / 1080p | 30−35 | 27−30 |
| The average gaming FPS of GeForce GTX 660M in Dota 2 is 9% more, than Radeon HD 4850 X2. | ||
| high / 1080p | 8−9 | 5−6 |
| ultra / 1080p | 7−8 | − |
| 4K / 2160p | 3−4 | 2−3 |
| low / 720p | 18−20 | 14−16 |
| medium / 1080p | 8−9 | 6−7 |
| The average gaming FPS of GeForce GTX 660M in Far Cry 5 is 28% more, than Radeon HD 4850 X2. | ||
| high / 1080p | 14−16 | 12−14 |
| ultra / 1080p | 10−11 | 7−8 |
| low / 720p | 60−65 | 50−55 |
| medium / 1080p | 21−24 | 14−16 |
| The average gaming FPS of GeForce GTX 660M in Fortnite is 22% more, than Radeon HD 4850 X2. | ||
| high / 1080p | 12−14 | 7−8 |
| ultra / 1080p | 10−12 | − |
| QHD / 1440p | 1−2 | 0−1 |
| low / 720p | 24−27 | 20−22 |
| medium / 1080p | 14−16 | 9−10 |
| The average gaming FPS of GeForce GTX 660M in Forza Horizon 4 is 41% more, than Radeon HD 4850 X2. | ||
| low / 768p | 50−55 | 45−50 |
| medium / 768p | 45−50 | − |
| high / 1080p | 12−14 | 8−9 |
| ultra / 1080p | 6−7 | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | − | 40−45 |
| The average gaming FPS of GeForce GTX 660M in Grand Theft Auto V is 20% more, than Radeon HD 4850 X2. | ||
| high / 1080p | 4−5 | 3−4 |
| ultra / 1080p | 3−4 | 1−2 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 12−14 | 8−9 |
| medium / 1080p | 6−7 | 4−5 |
| The average gaming FPS of GeForce GTX 660M in Metro Exodus is 50% more, than Radeon HD 4850 X2. | ||
| low / 768p | 95−100 | 85−90 |
| high / 1080p | 90−95 | 85−90 |
| ultra / 1080p | 80−85 | 80−85 |
| medium / 1080p | 90−95 | 85−90 |
| The average gaming FPS of GeForce GTX 660M in Minecraft is 5% more, than Radeon HD 4850 X2. | ||
| high / 1080p | 16−18 | − |
| ultra / 1080p | 14−16 | 12−14 |
| low / 720p | 30−35 | 27−30 |
| medium / 1080p | 18−20 | 14−16 |
| The average gaming FPS of GeForce GTX 660M in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than Radeon HD 4850 X2. | ||
| ultra / 1080p | 7−8 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 8−9 |
| medium / 1080p | 10−12 | − |
| The average gaming FPS of GeForce GTX 660M in Red Dead Redemption 2 is 25% more, than Radeon HD 4850 X2. | ||
| low / 768p | 24−27 | 16−18 |
| medium / 768p | 16−18 | 12−14 |
| high / 1080p | 9−10 | 6−7 |
| ultra / 1080p | 6−7 | 5−6 |
| 4K / 2160p | 6−7 | − |
| The average gaming FPS of GeForce GTX 660M in The Witcher 3: Wild Hunt is 40% more, than Radeon HD 4850 X2. | ||
| low / 768p | 85−90 | 70−75 |
| medium / 768p | 45−50 | 35−40 |
| ultra / 1080p | 18−20 | 16−18 |
| high / 768p | 35−40 | 30−35 |
| The average gaming FPS of GeForce GTX 660M in World of Tanks is 20% more, than Radeon HD 4850 X2. | ||
Full Specs
| GeForce GTX 660M | Radeon HD 4850 X2 | |
| Architecture | Kepler | TeraScale |
| Code name | N13E-GE | R700 |
| Type | Laptop | Desktop |
| Release date | 22 March 2012 | 7 November 2008 |
| Pipelines | 384 | 800 |
| Core clock speed | 835 MHz | 625 MHz |
| Boost Clock | 950 MHz | |
| Transistor count | 1,270 million | 956 million |
| Manufacturing process technology | 28 nm | 55 nm |
| Texture fill rate | 30.4 billion/sec | 25.00 |
| Floating-point performance | 729.6 gflops | 2x 1,000.0 gflops |
| Length | 267 mm | |
| Memory bus width | 128bit | 256 Bit |
| Memory clock speed | 2000 MHz | 1990 MHz |
| Memory bandwidth | 64.0 GB/s | 63.68 GB/s |
| Shared memory | - | |
| DirectX | 12 API | 10.1 (10_1) |
| Shader Model | 5.1 | 4.1 |
| OpenGL | 4.5 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | + | |
| CUDA cores | 384 | |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
| SLI options | + | |
| HDMI | + | |
| HDCP | + | |
| Maximum VGA resolution | Up to 2048x1536 | |
| Bitcoin / BTC (SHA256) | 36 Mh/s | |
| Laptop size | large | |
| Optimus | + | |
| Check Price |