ATI Mobility Radeon HD 4870 vs HD 6790
Aggregate performance score
We've compared Radeon HD 6790 with Mobility Radeon HD 4870, including specs and performance data.
HD 6790 outperforms Mobility HD 4870 by an impressive 88% 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 | 757 | 925 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.70 | no data |
| Power efficiency | 1.92 | no data |
| Architecture | TeraScale 2 (2009−2015) | TeraScale (2005−2013) |
| GPU code name | Barts | M98 |
| Market segment | Desktop | Laptop |
| Release date | 4 April 2011 (14 years ago) | 9 January 2009 (16 years ago) |
| Launch price (MSRP) | $149 | no data |
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 | 800 | 800 |
| Core clock speed | 840 MHz | 550 MHz |
| Number of transistors | 1,700 million | 956 million |
| Manufacturing process technology | 40 nm | 55 nm |
| Power consumption (TDP) | 150 Watt | no data |
| Texture fill rate | 33.60 | 22.00 |
| Floating-point processing power | 1.344 TFLOPS | 0.88 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 40 | 40 |
| L1 Cache | 160 KB | 160 KB |
| L2 Cache | 512 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 | no data | large |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Length | 198 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 2x 6-pin | no data |
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 | GDDR3 |
| Maximum RAM amount | 1 GB | 512 MB |
| Memory bus width | 256 Bit | 256 Bit |
| Memory clock speed | 1050 MHz | 888 MHz |
| Memory bandwidth | 134.4 GB/s | 56.83 GB/s |
| 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 | 2x DVI, 1x HDMI, 1x DisplayPort | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 10.1 (10_1) |
| Shader Model | 5.0 | 4.1 |
| OpenGL | 4.4 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | N/A | 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.
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:
| 900p | 52
+92.6%
| 27−30
−92.6%
|
| Full HD | 61
+118%
| 28
−118%
|
Cost per frame, $
| 1080p | 2.44 | no data |
FPS performance in popular games
Full HD
Low
| Counter-Strike 2 | 14−16
+275%
|
4−5
−275%
|
| Cyberpunk 2077 | 8−9
+100%
|
4−5
−100%
|
Full HD
Medium
| Battlefield 5 | 14−16
+180%
|
5−6
−180%
|
| Counter-Strike 2 | 14−16
+275%
|
4−5
−275%
|
| Cyberpunk 2077 | 8−9
+100%
|
4−5
−100%
|
| Escape from Tarkov | 14−16
+133%
|
6−7
−133%
|
| Far Cry 5 | 10−12
+120%
|
5−6
−120%
|
| Fortnite | 21−24
+144%
|
9−10
−144%
|
| Forza Horizon 4 | 18−20
+63.6%
|
10−12
−63.6%
|
| Forza Horizon 5 | 10−11
+150%
|
4−5
−150%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 16−18
+45.5%
|
10−12
−45.5%
|
| Valorant | 50−55
+35.9%
|
35−40
−35.9%
|
Full HD
High
| Battlefield 5 | 14−16
+180%
|
5−6
−180%
|
| Counter-Strike 2 | 14−16
+275%
|
4−5
−275%
|
| Counter-Strike: Global Offensive | 65−70
+65.9%
|
40−45
−65.9%
|
| Cyberpunk 2077 | 8−9
+100%
|
4−5
−100%
|
| Dota 2 | 30−35
+54.5%
|
21−24
−54.5%
|
| Escape from Tarkov | 14−16
+133%
|
6−7
−133%
|
| Far Cry 5 | 10−12
+120%
|
5−6
−120%
|
| Fortnite | 21−24
+144%
|
9−10
−144%
|
| Forza Horizon 4 | 18−20
+63.6%
|
10−12
−63.6%
|
| Forza Horizon 5 | 10−11
+150%
|
4−5
−150%
|
| Grand Theft Auto V | 10−12
+175%
|
4−5
−175%
|
| Metro Exodus | 7−8
+133%
|
3−4
−133%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 16−18
+45.5%
|
10−12
−45.5%
|
| The Witcher 3: Wild Hunt | 12−14
+50%
|
8−9
−50%
|
| Valorant | 50−55
+35.9%
|
35−40
−35.9%
|
Full HD
Ultra
| Battlefield 5 | 14−16
+180%
|
5−6
−180%
|
| Cyberpunk 2077 | 8−9
+100%
|
4−5
−100%
|
| Dota 2 | 30−35
+54.5%
|
21−24
−54.5%
|
| Escape from Tarkov | 14−16
+133%
|
6−7
−133%
|
| Far Cry 5 | 10−12
+120%
|
5−6
−120%
|
| Forza Horizon 4 | 18−20
+63.6%
|
10−12
−63.6%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 16−18
+45.5%
|
10−12
−45.5%
|
| The Witcher 3: Wild Hunt | 12−14
+50%
|
8−9
−50%
|
| Valorant | 50−55
+35.9%
|
35−40
−35.9%
|
Full HD
Epic
| Fortnite | 21−24
+144%
|
9−10
−144%
|
1440p
High
| Counter-Strike 2 | 8−9
+60%
|
5−6
−60%
|
| Counter-Strike: Global Offensive | 27−30
+107%
|
14−16
−107%
|
| Grand Theft Auto V | 2−3
+100%
|
1−2
−100%
|
| Metro Exodus | 2−3
+100%
|
1−2
−100%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 30−35
+55%
|
20−22
−55%
|
| Valorant | 35−40
+160%
|
14−16
−160%
|
1440p
Ultra
| Cyberpunk 2077 | 3−4
+200%
|
1−2
−200%
|
| Escape from Tarkov | 7−8
+75%
|
4−5
−75%
|
| Far Cry 5 | 7−8
+133%
|
3−4
−133%
|
| Forza Horizon 4 | 9−10
+80%
|
5−6
−80%
|
| The Witcher 3: Wild Hunt | 6−7
+100%
|
3−4
−100%
|
1440p
Epic
| Fortnite | 7−8
+133%
|
3−4
−133%
|
4K
High
| Grand Theft Auto V | 14−16
+0%
|
14−16
+0%
|
| Valorant | 18−20
+90%
|
10−11
−90%
|
4K
Ultra
| Cyberpunk 2077 | 1−2 | 0−1 |
| Dota 2 | 12−14
+200%
|
4−5
−200%
|
| Escape from Tarkov | 2−3
+100%
|
1−2
−100%
|
| Far Cry 5 | 3−4
+200%
|
1−2
−200%
|
| Forza Horizon 4 | 4−5
+300%
|
1−2
−300%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 4−5
+33.3%
|
3−4
−33.3%
|
4K
Epic
| Fortnite | 4−5
+33.3%
|
3−4
−33.3%
|
This is how HD 6790 and ATI Mobility HD 4870 compete in popular games:
- HD 6790 is 93% faster in 900p
- HD 6790 is 118% faster in 1080p
Here's the range of performance differences observed across popular games:
- in Forza Horizon 4, with 4K resolution and the Ultra Preset, the HD 6790 is 300% faster.
All in all, in popular games:
- HD 6790 performs better in 54 tests (98%)
- there's a draw in 1 test (2%)
Pros & cons summary
| Performance score | 3.74 | 1.99 |
| Recency | 4 April 2011 | 9 January 2009 |
| Maximum RAM amount | 1 GB | 512 MB |
| Chip lithography | 40 nm | 55 nm |
HD 6790 has a 87.9% higher aggregate performance score, an age advantage of 2 years, a 100% higher maximum VRAM amount, and a 37.5% more advanced lithography process.
The Radeon HD 6790 is our recommended choice as it beats the Mobility Radeon HD 4870 in performance tests.
Be aware that Radeon HD 6790 is a desktop graphics card while Mobility Radeon HD 4870 is a notebook one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
