ATI Radeon HD 4850 X2 vs 840M
Aggregate performance score
We've compared Radeon 840M with Radeon HD 4850 X2, including specs and performance data.
840M outperforms HD 4850 X2 by a whopping 239% 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 | 518 | 854 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.13 |
| Power efficiency | no data | 0.83 |
| Architecture | RDNA 3.5 (2024−2025) | TeraScale (2005−2013) |
| GPU code name | Krackan Point | R700 |
| Market segment | Laptop | Desktop |
| Release date | March 2025 (1 year ago) | 7 November 2008 (17 years ago) |
| Launch price (MSRP) | no data | $420 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
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 | 256 | 800 ×2 |
| Core clock speed | 400 MHz | 625 MHz |
| Boost clock speed | 2900 MHz | no data |
| Number of transistors | no data | 956 million |
| Manufacturing process technology | 4 nm | 55 nm |
| Power consumption (TDP) | 15 Watt | 250 Watt |
| Texture fill rate | 46.40 | 25.00 ×2 |
| Floating-point processing power | 1.4848 TFLOPS | 1 TFLOPS ×2 |
| ROPs | 8 | 16 ×2 |
| TMUs | 16 | 40 ×2 |
| Ray Tracing Cores | 4 | no data |
| L0 Cache | 64 KB | no data |
| L1 Cache | 64 KB | 160 KB |
| L2 Cache | 1024 KB | 256 KB |
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).
| Laptop size | medium sized | no data |
| Interface | PCIe 4.0 x8 | PCIe 2.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | None | 1x 6-pin + 1x 8-pin |
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 | System Shared | GDDR3 |
| Maximum RAM amount | System Shared | 512 MB ×2 |
| Memory bus width | System Shared | 256 Bit ×2 |
| Memory clock speed | System Shared | 995 MHz |
| Memory bandwidth | no data | 63.68 GB/s ×2 |
| Shared memory | + | - |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | Portable Device Dependent | 4x DVI, 1x S-Video |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 10.1 (10_1) |
| Shader Model | 6.8 | 4.1 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 2.1 | 1.1 |
| Vulkan | 1.4 | N/A |
Synthetic benchmarks
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 | 23
+283%
| 6−7
−283%
|
Cost per frame, $
| 1080p | no data | 70.00 |
FPS performance in popular games
Full HD
Low
| Counter-Strike 2 | 84
+250%
|
24−27
−250%
|
| Cyberpunk 2077 | 18−20
+280%
|
5−6
−280%
|
| Resident Evil 4 Remake | 18−20
+260%
|
5−6
−260%
|
Full HD
Medium
| Battlefield 5 | 40−45
+242%
|
12−14
−242%
|
| Counter-Strike 2 | 68
+278%
|
18−20
−278%
|
| Cyberpunk 2077 | 18−20
+280%
|
5−6
−280%
|
| Far Cry 5 | 30−33
+275%
|
8−9
−275%
|
| Fortnite | 55−60
+250%
|
16−18
−250%
|
| Forza Horizon 4 | 40−45
+242%
|
12−14
−242%
|
| Forza Horizon 5 | 27−30
+250%
|
8−9
−250%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 30−35
+267%
|
9−10
−267%
|
| Valorant | 90−95
+279%
|
24−27
−279%
|
Full HD
High
| Battlefield 5 | 40−45
+242%
|
12−14
−242%
|
| Counter-Strike 2 | 15
+275%
|
4−5
−275%
|
| Counter-Strike: Global Offensive | 140−150
+255%
|
40−45
−255%
|
| Cyberpunk 2077 | 18−20
+280%
|
5−6
−280%
|
| Far Cry 5 | 30−33
+275%
|
8−9
−275%
|
| Fortnite | 55−60
+250%
|
16−18
−250%
|
| Forza Horizon 4 | 40−45
+242%
|
12−14
−242%
|
| Forza Horizon 5 | 27−30
+250%
|
8−9
−250%
|
| Grand Theft Auto V | 32
+256%
|
9−10
−256%
|
| Metro Exodus | 18−20
+280%
|
5−6
−280%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 30−35
+267%
|
9−10
−267%
|
| The Witcher 3: Wild Hunt | 24−27
+243%
|
7−8
−243%
|
| Valorant | 90−95
+279%
|
24−27
−279%
|
Full HD
Ultra
| Battlefield 5 | 40−45
+242%
|
12−14
−242%
|
| Cyberpunk 2077 | 18−20
+280%
|
5−6
−280%
|
| Far Cry 5 | 30−33
+275%
|
8−9
−275%
|
| Forza Horizon 4 | 40−45
+242%
|
12−14
−242%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 30−35
+267%
|
9−10
−267%
|
| The Witcher 3: Wild Hunt | 24−27
+243%
|
7−8
−243%
|
Full HD
Epic
| Fortnite | 55−60
+250%
|
16−18
−250%
|
1440p
High
| Counter-Strike 2 | 16−18
+240%
|
5−6
−240%
|
| Counter-Strike: Global Offensive | 70−75
+294%
|
18−20
−294%
|
| Grand Theft Auto V | 12−14
+300%
|
3−4
−300%
|
| Metro Exodus | 10−11
+400%
|
2−3
−400%
|
| Valorant | 100−110
+243%
|
30−33
−243%
|
1440p
Ultra
| Battlefield 5 | 21−24
+283%
|
6−7
−283%
|
| Cyberpunk 2077 | 8−9
+300%
|
2−3
−300%
|
| Far Cry 5 | 18−20
+280%
|
5−6
−280%
|
| Forza Horizon 4 | 21−24
+267%
|
6−7
−267%
|
| The Witcher 3: Wild Hunt | 12−14
+333%
|
3−4
−333%
|
1440p
Epic
| Fortnite | 20−22
+300%
|
5−6
−300%
|
4K
High
| Counter-Strike 2 | 4−5
+300%
|
1−2
−300%
|
| Grand Theft Auto V | 20−22
+300%
|
5−6
−300%
|
| Metro Exodus | 5−6
+400%
|
1−2
−400%
|
| The Witcher 3: Wild Hunt | 10−11
+400%
|
2−3
−400%
|
| Valorant | 45−50
+250%
|
14−16
−250%
|
4K
Ultra
| Battlefield 5 | 10−12
+267%
|
3−4
−267%
|
| Cyberpunk 2077 | 3−4 | 0−1 |
| Far Cry 5 | 9−10
+350%
|
2−3
−350%
|
| Forza Horizon 4 | 16−18
+300%
|
4−5
−300%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
+350%
|
2−3
−350%
|
4K
Epic
| Fortnite | 9−10
+350%
|
2−3
−350%
|
This is how Radeon 840M and ATI HD 4850 X2 compete in popular games:
- Radeon 840M is 283% faster in 1080p
Pros & cons summary
| Performance score | 9.19 | 2.71 |
| Chip lithography | 4 nm | 55 nm |
| Power consumption (TDP) | 15 Watt | 250 Watt |
Radeon 840M has a 239% higher aggregate performance score, a 1275% more advanced lithography process, and 1567% lower power consumption.
The Radeon 840M is our recommended choice as it beats the Radeon HD 4850 X2 in performance tests.
Be aware that Radeon 840M is a notebook graphics card while Radeon HD 4850 X2 is a desktop one.
Other comparisons
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