Radeon HD 4870 X2 vs Radeon HD 8790M
When comparing Radeon HD 4870 X2 and Radeon HD 8790M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 4870 X2 and Radeon HD 8790M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon HD 4870 X2
Radeon HD 8790M is a Laptop Graphics Card
Note: Radeon HD 8790M 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 Radeon HD 8790M here:
Main Specs
| Radeon HD 4870 X2 | Radeon HD 8790M | |
| Power consumption (TDP) | 286 Watt | |
| Interface | PCIe 2.0 x16 | MXM-A (3.0) |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | None |
| Memory type | GDDR5 | GDDR5 |
| Maximum RAM amount | 1 GB | 2 GB |
| Display Connectors | 2x DVI, 1x S-Video | No outputs |
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- Radeon HD 4870 X2 is connected by PCIe 2.0 x16, and Radeon HD 8790M uses MXM-A (3.0) interface.
- Radeon HD 8790M has 1 GB more memory, than Radeon HD 4870 X2.
- Radeon HD 4870 X2 is used in Desktops, and Radeon HD 8790M - in Laptops.
- Radeon HD 4870 X2 is build with TeraScale architecture, and Radeon HD 8790M - with GCN.
- Core clock speed of Radeon HD 8790M is 150 MHz higher, than Radeon HD 4870 X2.
- Radeon HD 4870 X2 is manufactured by 55 nm process technology, and Radeon HD 8790M - by 28 nm process technology.
- Memory clock speed of Radeon HD 8790M is 900 MHz higher, than Radeon HD 4870 X2.
Game benchmarks
| high / 1080p | 3−4 | 3−4 |
| ultra / 1080p | 1−2 | 1−2 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 14−16 |
| medium / 1080p | 6−7 | 6−7 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Assassin's Creed Odyssey. | ||
| high / 1080p | 8−9 | 8−9 |
| ultra / 1080p | 6−7 | 6−7 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 21−24 | 21−24 |
| medium / 1080p | 9−10 | 9−10 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Battlefield 5. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 40−45 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 130−140 | 120−130 |
| medium / 768p | 100−110 | 100−110 |
| ultra / 1080p | 50−55 | 50−55 |
| QHD / 1440p | 24−27 | 24−27 |
| high / 768p | 75−80 | 75−80 |
| The average gaming FPS of Radeon HD 4870 X2 in Counter-Strike: Global Offensive is 2% more, than Radeon HD 8790M. | ||
| low / 768p | 70−75 | 70−75 |
| ultra / 1080p | 21−24 | 21−24 |
| medium / 1080p | 40−45 | 40−45 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 75−80 | 75−80 |
| medium / 768p | 55−60 | 55−60 |
| ultra / 1080p | 30−35 | 30−35 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Dota 2. | ||
| high / 1080p | 4−5 | 4−5 |
| ultra / 1080p | 4−5 | 4−5 |
| 4K / 2160p | 1−2 | 1−2 |
| low / 720p | 14−16 | 14−16 |
| medium / 1080p | 6−7 | 6−7 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Far Cry 5. | ||
| high / 1080p | 12−14 | 12−14 |
| ultra / 1080p | 7−8 | 7−8 |
| QHD / 1440p | 4−5 | 4−5 |
| low / 720p | 60−65 | 60−65 |
| medium / 1080p | 18−20 | 18−20 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Fortnite. | ||
| high / 1080p | 8−9 | 8−9 |
| ultra / 1080p | 7−8 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 21−24 | 21−24 |
| medium / 1080p | 10−11 | 10−11 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Forza Horizon 4. | ||
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 10−11 | 10−11 |
| ultra / 1080p | 4−5 | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | 40−45 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Grand Theft Auto V. | ||
| high / 1080p | 2−3 | 2−3 |
| ultra / 1080p | 0−1 | 0−1 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 9−10 | 9−10 |
| medium / 1080p | 4−5 | 4−5 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Metro Exodus. | ||
| low / 768p | 85−90 | 85−90 |
| high / 1080p | 70−75 | 70−75 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Minecraft. | ||
| ultra / 1080p | 12−14 | 12−14 |
| low / 720p | 30−35 | 30−35 |
| medium / 1080p | 14−16 | 14−16 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS. | ||
| high / 1080p | 7−8 | 7−8 |
| ultra / 1080p | 4−5 | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 8−9 | 8−9 |
| medium / 1080p | 8−9 | 8−9 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in Red Dead Redemption 2. | ||
| low / 768p | 20−22 | 20−22 |
| medium / 768p | 12−14 | 12−14 |
| high / 1080p | 7−8 | 7−8 |
| ultra / 1080p | 5−6 | 5−6 |
| 4K / 2160p | 1−2 | 1−2 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in The Witcher 3: Wild Hunt. | ||
| low / 768p | 75−80 | 75−80 |
| medium / 768p | 40−45 | 40−45 |
| ultra / 1080p | 18−20 | 18−20 |
| high / 768p | 30−35 | 30−35 |
| Radeon HD 4870 X2 and Radeon HD 8790M have the same average FPS in World of Tanks. | ||
Full Specs
| Radeon HD 4870 X2 | Radeon HD 8790M | |
| Architecture | TeraScale | GCN |
| Code name | R700 | Mars XTX |
| Type | Desktop | Laptop |
| Release date | 12 August 2008 | 16 November 2012 |
| Pipelines | 800 | 384 |
| Core clock speed | 700 MHz | 850 MHz |
| Boost Clock | 900 MHz | |
| Transistor count | 956 million | 950 million |
| Manufacturing process technology | 55 nm | 28 nm |
| Texture fill rate | 28.00 | 21.60 |
| Floating-point performance | 2x 1,120.0 gflops | 691.2 gflops |
| Length | 267 mm | |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 3600 MHz | 4500 MHz |
| Memory bandwidth | 115.2 GB/s | 64 GB/s |
| Shared memory | - | |
| DirectX | 10.1 (10_1) | 12 (11_1) |
| Shader Model | 4.1 | 5.1 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 1.2 |
| Vulkan | N/A | 1.2.131 |
| Bitcoin / BTC (SHA256) | 80 Mh/s | |
| Laptop size | medium sized | |
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