Radeon RX 640 vs Maxwell GPU Surface Book (940M, GDDR5)
Aggregate performance score
We've compared Maxwell GPU Surface Book (940M, GDDR5) and Radeon RX 640, covering specs and all relevant benchmarks.
RX 640 outperforms Maxwell GPU Surface Book (940M, GDDR5) by a considerable 40% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 712 | 616 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 7.60 |
| Architecture | Maxwell (2014−2017) | GCN 4.0 (2016−2020) |
| GPU code name | Surface Book | Polaris 23 |
| Market segment | Laptop | Laptop |
| Release date | 1 October 2015 (9 years ago) | 13 May 2019 (5 years ago) |
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 | 384 | 640 |
| Core clock speed | 954 MHz | 1082 MHz |
| Boost clock speed | 993 MHz | 1218 MHz |
| Number of transistors | no data | 2,200 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | no data | 50 Watt |
| Texture fill rate | no data | 48.72 |
| Floating-point processing power | no data | 1.559 TFLOPS |
| ROPs | no data | 16 |
| TMUs | no data | 40 |
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 | no data | PCIe 3.0 x8 |
| Supplementary power connectors | no data | None |
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 | GDDR5 |
| Maximum RAM amount | 1 GB | 2 GB |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 5012 MHz | 1500 MHz |
| Memory bandwidth | no data | 48 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 data | No outputs |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| FreeSync | - | + |
| Optimus | + | - |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX 12 (FL 11_0), Shader 5.0 | 12 (12_0) |
| Shader Model | no data | 6.4 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 2.0 |
| Vulkan | - | 1.2.131 |
| CUDA | + | - |
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. 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.
3DMark 11 Performance GPU
3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.
3DMark Fire Strike Graphics
Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.
3DMark Cloud Gate GPU
Cloud Gate is an outdated DirectX 11 feature level 10 benchmark that was used for home PCs and basic notebooks. It displays a few scenes of some weird space teleportation device launching spaceships into unknown, using fixed resolution of 1280x720. Just like Ice Storm benchmark, it has been discontinued in January 2020 and replaced by 3DMark Night Raid.
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 | 28
+0%
| 28
+0%
|
FPS performance in popular games
Full HD
Medium Preset
| Assassin's Creed Odyssey | 10−12
−81.8%
|
20
+81.8%
|
| Battlefield 5 | 8−9
−62.5%
|
12−14
+62.5%
|
| Call of Duty: Modern Warfare | 8−9
−37.5%
|
10−12
+37.5%
|
| Far Cry 5 | 7−8
−57.1%
|
10−12
+57.1%
|
| Far Cry New Dawn | 10−11
−40%
|
14−16
+40%
|
| Forza Horizon 4 | 21−24
−52.4%
|
30−35
+52.4%
|
| Red Dead Redemption 2 | 9−10
−189%
|
26
+189%
|
| Shadow of the Tomb Raider | 14−16
−28.6%
|
18−20
+28.6%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 10−12
−27.3%
|
14−16
+27.3%
|
| Battlefield 5 | 8−9
−62.5%
|
12−14
+62.5%
|
| Call of Duty: Modern Warfare | 8−9
−37.5%
|
10−12
+37.5%
|
| Far Cry 5 | 7−8
−57.1%
|
10−12
+57.1%
|
| Far Cry New Dawn | 10−11
−40%
|
14−16
+40%
|
| Forza Horizon 4 | 21−24
−52.4%
|
30−35
+52.4%
|
| Metro Exodus | 6−7
−66.7%
|
10
+66.7%
|
| Red Dead Redemption 2 | 9−10
−55.6%
|
14−16
+55.6%
|
| Shadow of the Tomb Raider | 14−16
−28.6%
|
18−20
+28.6%
|
| The Witcher 3: Wild Hunt | 14−16
−20%
|
18−20
+20%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 10−12
−27.3%
|
14−16
+27.3%
|
| Battlefield 5 | 8−9
−25%
|
10−11
+25%
|
| Far Cry 5 | 7−8
−57.1%
|
10−12
+57.1%
|
| Far Cry New Dawn | 10−11
−40%
|
14−16
+40%
|
| Forza Horizon 4 | 21−24
−52.4%
|
30−35
+52.4%
|
| The Witcher 3: Wild Hunt | 14−16
+36.4%
|
11
−36.4%
|
1440p
High Preset
| Call of Duty: Modern Warfare | 3−4
−33.3%
|
4−5
+33.3%
|
| Red Dead Redemption 2 | 7−8
−28.6%
|
9−10
+28.6%
|
1440p
Ultra Preset
| Assassin's Creed Odyssey | 3−4
−66.7%
|
5−6
+66.7%
|
| Battlefield 5 | 6−7
−33.3%
|
8−9
+33.3%
|
| Far Cry 5 | 4−5
−50%
|
6−7
+50%
|
| Far Cry New Dawn | 6−7
−33.3%
|
8−9
+33.3%
|
| Forza Horizon 4 | 2−3
−500%
|
12−14
+500%
|
4K
High Preset
| Call of Duty: Modern Warfare | 1−2
+0%
|
1−2
+0%
|
| Red Dead Redemption 2 | 4−5
−25%
|
5−6
+25%
|
4K
Ultra Preset
| Assassin's Creed Odyssey | 2−3
−50%
|
3−4
+50%
|
| Battlefield 5 | 2−3
+0%
|
2−3
+0%
|
| Far Cry 5 | 2−3
−50%
|
3−4
+50%
|
| Far Cry New Dawn | 2−3
+0%
|
2−3
+0%
|
| Forza Horizon 4 | 2−3
−100%
|
4−5
+100%
|
Full HD
Low Preset
| Cyberpunk 2077 | 9−10
+0%
|
9−10
+0%
|
Full HD
Medium Preset
| Assassin's Creed Valhalla | 5−6
+0%
|
5−6
+0%
|
| Cyberpunk 2077 | 9−10
+0%
|
9−10
+0%
|
| Hitman 3 | 10−12
+0%
|
10−12
+0%
|
| Horizon Zero Dawn | 30−35
+0%
|
30−35
+0%
|
| Metro Exodus | 27
+0%
|
27
+0%
|
| Watch Dogs: Legion | 45−50
+0%
|
45−50
+0%
|
Full HD
High Preset
| Assassin's Creed Valhalla | 5−6
+0%
|
5−6
+0%
|
| Cyberpunk 2077 | 9−10
+0%
|
9−10
+0%
|
| Hitman 3 | 10−12
+0%
|
10−12
+0%
|
| Horizon Zero Dawn | 30−35
+0%
|
30−35
+0%
|
| Watch Dogs: Legion | 45−50
+0%
|
45−50
+0%
|
Full HD
Ultra Preset
| Assassin's Creed Valhalla | 5−6
+0%
|
5−6
+0%
|
| Call of Duty: Modern Warfare | 10−12
+0%
|
10−12
+0%
|
| Cyberpunk 2077 | 9−10
+0%
|
9−10
+0%
|
| Hitman 3 | 10−12
+0%
|
10−12
+0%
|
| Horizon Zero Dawn | 30−35
+0%
|
30−35
+0%
|
| Shadow of the Tomb Raider | 18−20
+0%
|
18−20
+0%
|
| Watch Dogs: Legion | 45−50
+0%
|
45−50
+0%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 14−16
+0%
|
14−16
+0%
|
1440p
High Preset
| Battlefield 5 | 10−11
+0%
|
10−11
+0%
|
| Far Cry New Dawn | 8−9
+0%
|
8−9
+0%
|
1440p
Ultra Preset
| Assassin's Creed Valhalla | 0−1 | 0−1 |
| Call of Duty: Modern Warfare | 4−5
+0%
|
4−5
+0%
|
| Cyberpunk 2077 | 2−3
+0%
|
2−3
+0%
|
| Hitman 3 | 9−10
+0%
|
9−10
+0%
|
| Horizon Zero Dawn | 10−12
+0%
|
10−12
+0%
|
| Metro Exodus | 3−4
+0%
|
3−4
+0%
|
| The Witcher 3: Wild Hunt | 4−5
+0%
|
4−5
+0%
|
| Watch Dogs: Legion | 30−35
+0%
|
30−35
+0%
|
1440p
Epic Preset
| Red Dead Redemption 2 | 9−10
+0%
|
9−10
+0%
|
4K
High Preset
| Battlefield 5 | 4−5
+0%
|
4−5
+0%
|
| Far Cry New Dawn | 3−4
+0%
|
3−4
+0%
|
| Hitman 3 | 1−2
+0%
|
1−2
+0%
|
| Horizon Zero Dawn | 8−9
+0%
|
8−9
+0%
|
| Metro Exodus | 2−3
+0%
|
2−3
+0%
|
| The Witcher 3: Wild Hunt | 1−2
+0%
|
1−2
+0%
|
4K
Ultra Preset
| Assassin's Creed Valhalla | 2−3
+0%
|
2−3
+0%
|
| Call of Duty: Modern Warfare | 2−3
+0%
|
2−3
+0%
|
| Cyberpunk 2077 | 0−1 | 0−1 |
| Watch Dogs: Legion | 1−2
+0%
|
1−2
+0%
|
4K
Epic Preset
| Red Dead Redemption 2 | 6−7
+0%
|
6−7
+0%
|
This is how Maxwell GPU Surface Book (940M, GDDR5) and RX 640 compete in popular games:
- A tie in 1080p
Here's the range of performance differences observed across popular games:
- in The Witcher 3: Wild Hunt, with 1080p resolution and the Ultra Preset, the Maxwell GPU Surface Book (940M, GDDR5) is 36% faster.
- in Forza Horizon 4, with 1440p resolution and the Ultra Preset, the RX 640 is 500% faster.
All in all, in popular games:
- Maxwell GPU Surface Book (940M, GDDR5) is ahead in 1 test (1%)
- RX 640 is ahead in 27 tests (40%)
- there's a draw in 40 tests (59%)
Pros & cons summary
| Performance score | 3.69 | 5.18 |
| Recency | 1 October 2015 | 13 May 2019 |
| Maximum RAM amount | 1 GB | 2 GB |
| Chip lithography | 28 nm | 14 nm |
RX 640 has a 40.4% higher aggregate performance score, an age advantage of 3 years, a 100% higher maximum VRAM amount, and a 100% more advanced lithography process.
The Radeon RX 640 is our recommended choice as it beats the Maxwell GPU Surface Book (940M, GDDR5) 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.
