Mobility Radeon HD 4870 vs GeForce 840M
Aggregate performance score
GeForce 840M outperforms Mobility Radeon HD 4870 by a substantial 36% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 758 | 834 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.14 | 0.17 |
| Architecture | Maxwell (2014−2018) | Terascale 1 (2008−2010) |
| GPU code name | N15S-GT | M98-XT |
| Market segment | Laptop | Laptop |
| Release date | 12 March 2014 (10 years ago) | 9 January 2009 (15 years ago) |
| Current price | $743 | $305 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
ATI Mobility HD 4870 has 21% better value for money than GeForce 840M.
Detailed specifications
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 | 384 | 800 |
| Core clock speed | 1029 MHz | 550 MHz |
| Boost clock speed | 1124 MHz | no data |
| Number of transistors | no data | 956 million |
| Manufacturing process technology | 28 nm | 55 nm |
| Power consumption (TDP) | 33 Watt | no data |
| Texture fill rate | 17.98 | 22.00 |
| Floating-point performance | 863.2 gflops | 880.0 gflops |
Form factor & compatibility
Information on GeForce 840M and Mobility Radeon HD 4870 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Laptop size | medium sized | large |
| Bus support | PCI Express 2.0, PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x8 | PCIe 2.0 x16 |
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 | DDR3 | GDDR5 |
| Maximum RAM amount | 4 GB | 1 GB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 2000 MHz | 888 MHz |
| Memory bandwidth | 16.02 GB/s | 56.83 GB/s |
| Shared memory | - | - |
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 | No outputs | No outputs |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| GPU Boost | 2.0 | no data |
| Optimus | + | no data |
| GameWorks | + | no data |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 10.1 (10_1) |
| Shader Model | 5.1 | 4.1 |
| OpenGL | 4.5 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | + | 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.
GeForce 840M outperforms Mobility Radeon HD 4870 by 36% based on our aggregate benchmark results.
3DMark Vantage Performance
3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.
Benchmark coverage: 17%
GeForce 840M outperforms Mobility Radeon HD 4870 by 8% in 3DMark Vantage Performance.
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:
| 900p | 45
+50%
| 30−35
−50%
|
| Full HD | 18
−38.9%
| 25
+38.9%
|
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 5−6 | no data |
Full HD
Medium Preset
| Assassin's Creed Odyssey | 5−6 | no data |
| Battlefield 5 | 4−5 | no data |
| Call of Duty: Modern Warfare | 7−8 | no data |
| Cyberpunk 2077 | 5−6 | no data |
| Far Cry 5 | 5−6 | no data |
| Far Cry New Dawn | 8−9 | no data |
| Forza Horizon 4 | 12−14 | no data |
| Hitman 3 | 6−7 | no data |
| Horizon Zero Dawn | 18−20 | no data |
| Red Dead Redemption 2 | 7−8 | no data |
| Shadow of the Tomb Raider | 12−14 | no data |
| Watch Dogs: Legion | 16−18 | no data |
Full HD
High Preset
| Assassin's Creed Odyssey | 5−6 | no data |
| Battlefield 5 | 4−5 | no data |
| Call of Duty: Modern Warfare | 7−8 | no data |
| Cyberpunk 2077 | 5−6 | no data |
| Far Cry 5 | 5−6 | no data |
| Far Cry New Dawn | 8−9 | no data |
| Forza Horizon 4 | 12−14 | no data |
| Hitman 3 | 6−7 | no data |
| Horizon Zero Dawn | 18−20 | no data |
| Red Dead Redemption 2 | 7−8 | no data |
| Shadow of the Tomb Raider | 12−14 | no data |
| The Witcher 3: Wild Hunt | 9 | no data |
| Watch Dogs: Legion | 16−18 | no data |
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 5−6 | no data |
| Call of Duty: Modern Warfare | 7−8 | no data |
| Cyberpunk 2077 | 5−6 | no data |
| Far Cry 5 | 5−6 | no data |
| Forza Horizon 4 | 12−14 | no data |
| Horizon Zero Dawn | 18−20 | no data |
| Shadow of the Tomb Raider | 12−14 | no data |
| The Witcher 3: Wild Hunt | 6 | no data |
| Watch Dogs: Legion | 16−18 | no data |
Full HD
Epic Preset
| Red Dead Redemption 2 | 7−8 | no data |
1440p
High Preset
| Battlefield 5 | 5−6 | no data |
| Far Cry New Dawn | 3−4 | no data |
1440p
Ultra Preset
| Assassin's Creed Odyssey | 2−3 | no data |
| Call of Duty: Modern Warfare | 5−6 | no data |
| Cyberpunk 2077 | 1−2 | no data |
| Far Cry 5 | 4−5 | no data |
| Forza Horizon 4 | 4−5 | no data |
| Hitman 3 | 8−9 | no data |
| Horizon Zero Dawn | 7−8 | no data |
| The Witcher 3: Wild Hunt | 2−3 | no data |
| Watch Dogs: Legion | 1−2 | no data |
1440p
Epic Preset
| Red Dead Redemption 2 | 6−7 | no data |
4K
High Preset
| Battlefield 5 | 1−2 | no data |
| Far Cry New Dawn | 2−3 | no data |
| Horizon Zero Dawn | 3−4 | no data |
4K
Ultra Preset
| Assassin's Creed Odyssey | 2−3 | no data |
| Assassin's Creed Valhalla | 1−2 | no data |
| Call of Duty: Modern Warfare | 1−2 | no data |
| Far Cry 5 | 1−2 | no data |
| Forza Horizon 4 | 0−1 | 0−1 |
| Horizon Zero Dawn | 3−4 | no data |
| Metro Exodus | 5−6 | no data |
| Watch Dogs: Legion | 0−1 | no data |
4K
Epic Preset
| Red Dead Redemption 2 | 4−5 | no data |
This is how GeForce 840M and ATI Mobility HD 4870 compete in popular games:
- GeForce 840M is 50% faster in 900p
- ATI Mobility HD 4870 is 39% faster in 1080p
Pros & cons summary
| Performance score | 2.82 | 2.07 |
| Recency | 12 March 2014 | 9 January 2009 |
| Maximum RAM amount | 4 GB | 1 GB |
| Chip lithography | 28 nm | 55 nm |
The GeForce 840M is our recommended choice as it beats the Mobility Radeon HD 4870 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.
