Radeon RX 6600 XT vs ATI Mobility HD 4870 X2
Aggregate performance score
We've compared Mobility Radeon HD 4870 X2 with Radeon RX 6600 XT, including specs and performance data.
RX 6600 XT outperforms ATI Mobility HD 4870 X2 by a whopping 1271% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 769 | 94 |
| Place by popularity | not in top-100 | 75 |
| Cost-effectiveness evaluation | no data | 62.07 |
| Power efficiency | no data | 18.38 |
| Architecture | TeraScale (2005−2013) | RDNA 2.0 (2020−2024) |
| GPU code name | M98 | Navi 23 |
| Market segment | Laptop | Desktop |
| Release date | 9 January 2009 (16 years ago) | 30 July 2021 (3 years ago) |
| Launch price (MSRP) | no data | $379 |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
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 | 800 ×2 | 2048 |
| Core clock speed | 550 MHz | 1968 MHz |
| Boost clock speed | no data | 2589 MHz |
| Number of transistors | 956 million | 11,060 million |
| Manufacturing process technology | 55 nm | 7 nm |
| Power consumption (TDP) | no data | 160 Watt |
| Texture fill rate | 22.00 ×2 | 331.4 |
| Floating-point processing power | 0.88 TFLOPS ×2 | 10.6 TFLOPS |
| ROPs | 16 ×2 | 64 |
| TMUs | 40 ×2 | 128 |
| Ray Tracing Cores | no data | 32 |
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 | large | no data |
| Interface | PCIe 2.0 x16 | PCIe 4.0 x8 |
| Length | no data | 190 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 1 GB ×2 | 8 GB |
| Memory bus width | 256 Bit ×2 | 128 Bit |
| Memory clock speed | 700 MHz | 2000 MHz |
| Memory bandwidth | 89.6 GB/s ×2 | 256.0 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 | 1x HDMI, 2x DisplayPort |
| HDMI | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 10.1 (10_1) | 12.0 Ultimate (12_2) |
| Shader Model | 4.1 | 6.5 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 2.1 |
| Vulkan | N/A | 1.2 |
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.
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.
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 | 44
−200%
| 132
+200%
|
| 1440p | 5−6
−1400%
| 75
+1400%
|
| 4K | 3−4
−1333%
| 43
+1333%
|
Cost per frame, $
| 1080p | no data | 2.87 |
| 1440p | no data | 5.05 |
| 4K | no data | 8.81 |
FPS performance in popular games
Full HD
Low Preset
| Atomic Heart | 7−8
−1614%
|
120−130
+1614%
|
| Counter-Strike 2 | 9−10
−1233%
|
120
+1233%
|
| Cyberpunk 2077 | 6−7
−1217%
|
79
+1217%
|
Full HD
Medium Preset
| Atomic Heart | 7−8
−1614%
|
120−130
+1614%
|
| Battlefield 5 | 10−11
−1240%
|
130−140
+1240%
|
| Counter-Strike 2 | 9−10
−922%
|
90−95
+922%
|
| Cyberpunk 2077 | 6−7
−1200%
|
78
+1200%
|
| Far Cry 5 | 6−7
−2417%
|
151
+2417%
|
| Fortnite | 14−16
−1040%
|
170−180
+1040%
|
| Forza Horizon 4 | 14−16
−993%
|
150−160
+993%
|
| Forza Horizon 5 | 5−6
−2360%
|
123
+2360%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 12−14
−1092%
|
150−160
+1092%
|
| Valorant | 45−50
−398%
|
220−230
+398%
|
Full HD
High Preset
| Atomic Heart | 7−8
−1614%
|
120−130
+1614%
|
| Battlefield 5 | 10−11
−1240%
|
130−140
+1240%
|
| Counter-Strike 2 | 9−10
−922%
|
90−95
+922%
|
| Counter-Strike: Global Offensive | 55−60
−405%
|
270−280
+405%
|
| Cyberpunk 2077 | 6−7
−1167%
|
76
+1167%
|
| Dota 2 | 27−30
−486%
|
170
+486%
|
| Far Cry 5 | 6−7
−2250%
|
141
+2250%
|
| Fortnite | 14−16
−1040%
|
170−180
+1040%
|
| Forza Horizon 4 | 14−16
−993%
|
150−160
+993%
|
| Forza Horizon 5 | 5−6
−2200%
|
115
+2200%
|
| Grand Theft Auto V | 8−9
−1588%
|
135
+1588%
|
| Metro Exodus | 5−6
−1800%
|
95
+1800%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 12−14
−1092%
|
150−160
+1092%
|
| The Witcher 3: Wild Hunt | 9−10
−1856%
|
176
+1856%
|
| Valorant | 45−50
−398%
|
220−230
+398%
|
Full HD
Ultra Preset
| Battlefield 5 | 10−11
−1240%
|
130−140
+1240%
|
| Counter-Strike 2 | 9−10
−644%
|
67
+644%
|
| Cyberpunk 2077 | 6−7
−1050%
|
69
+1050%
|
| Dota 2 | 27−30
−314%
|
120
+314%
|
| Far Cry 5 | 6−7
−2117%
|
133
+2117%
|
| Forza Horizon 4 | 14−16
−993%
|
150−160
+993%
|
| Forza Horizon 5 | 5−6
−1840%
|
97
+1840%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 12−14
−1092%
|
150−160
+1092%
|
| The Witcher 3: Wild Hunt | 9−10
−1000%
|
99
+1000%
|
| Valorant | 45−50
−398%
|
220−230
+398%
|
Full HD
Epic Preset
| Fortnite | 14−16
−1040%
|
170−180
+1040%
|
1440p
High Preset
| Counter-Strike 2 | 4−5
−675%
|
30−35
+675%
|
| Counter-Strike: Global Offensive | 21−24
−1141%
|
270−280
+1141%
|
| Grand Theft Auto V | 2−3
−3300%
|
68
+3300%
|
| Metro Exodus | 1−2
−5500%
|
56
+5500%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 21−24
−695%
|
170−180
+695%
|
| Valorant | 27−30
−829%
|
260−270
+829%
|
1440p
Ultra Preset
| Cyberpunk 2077 | 2−3
−1900%
|
40
+1900%
|
| Far Cry 5 | 5−6
−2000%
|
105
+2000%
|
| Forza Horizon 4 | 7−8
−1529%
|
110−120
+1529%
|
| Forza Horizon 5 | 3−4
−2267%
|
71
+2267%
|
| The Witcher 3: Wild Hunt | 5−6
−1420%
|
75−80
+1420%
|
1440p
Epic Preset
| Fortnite | 5−6
−2000%
|
100−110
+2000%
|
4K
High Preset
| Atomic Heart | 2−3
−1500%
|
30−35
+1500%
|
| Grand Theft Auto V | 16−18
−300%
|
64
+300%
|
| Valorant | 14−16
−1507%
|
240−250
+1507%
|
4K
Ultra Preset
| Cyberpunk 2077 | 1−2
−1300%
|
14
+1300%
|
| Dota 2 | 8−9
−975%
|
86
+975%
|
| Far Cry 5 | 3−4
−1600%
|
51
+1600%
|
| Forza Horizon 4 | 2−3
−3700%
|
75−80
+3700%
|
| Forza Horizon 5 | 1−2
−3500%
|
36
+3500%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 4−5
−1275%
|
55−60
+1275%
|
4K
Epic Preset
| Fortnite | 4−5
−1200%
|
50−55
+1200%
|
1440p
Ultra Preset
| Battlefield 5 | 100−110
+0%
|
100−110
+0%
|
4K
High Preset
| Counter-Strike 2 | 20−22
+0%
|
20−22
+0%
|
| Metro Exodus | 34
+0%
|
34
+0%
|
| The Witcher 3: Wild Hunt | 54
+0%
|
54
+0%
|
4K
Ultra Preset
| Battlefield 5 | 60−65
+0%
|
60−65
+0%
|
| Counter-Strike 2 | 8
+0%
|
8
+0%
|
This is how ATI Mobility HD 4870 X2 and RX 6600 XT compete in popular games:
- RX 6600 XT is 200% faster in 1080p
- RX 6600 XT is 1400% faster in 1440p
- RX 6600 XT is 1333% faster in 4K
Here's the range of performance differences observed across popular games:
- in Metro Exodus, with 1440p resolution and the High Preset, the RX 6600 XT is 5500% faster.
All in all, in popular games:
- RX 6600 XT is ahead in 61 test (91%)
- there's a draw in 6 tests (9%)
Pros & cons summary
| Performance score | 3.09 | 42.37 |
| Recency | 9 January 2009 | 30 July 2021 |
| Maximum RAM amount | 1 GB | 8 GB |
| Chip lithography | 55 nm | 7 nm |
RX 6600 XT has a 1271.2% higher aggregate performance score, an age advantage of 12 years, a 700% higher maximum VRAM amount, and a 685.7% more advanced lithography process.
The Radeon RX 6600 XT is our recommended choice as it beats the Mobility Radeon HD 4870 X2 in performance tests.
Be aware that Mobility Radeon HD 4870 X2 is a notebook card while Radeon RX 6600 XT is a desktop one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
