GeForce GT 640 vs GTX 980 SLI Mobile
Aggregate performance score
We've compared GeForce GTX 980 SLI Mobile with GeForce GT 640, including specs and performance data.
GTX 980 SLI Mobile outperforms GT 640 by a whopping 1187% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 114 | 767 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.20 |
| Power efficiency | 8.29 | 3.27 |
| Architecture | Maxwell (2014−2017) | Kepler (2012−2018) |
| GPU code name | N16E-GXX SLI | GK107 |
| Market segment | Laptop | Desktop |
| Release date | 22 September 2015 (9 years ago) | 5 June 2012 (12 years ago) |
| Launch price (MSRP) | no data | $99 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
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 | 4096 | 384 |
| Core clock speed | 1126 MHz | 902 MHz |
| Boost clock speed | 1228 MHz | no data |
| Number of transistors | 10400 Million | 1,270 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 330 Watt | 65 Watt |
| Texture fill rate | no data | 28.86 |
| Floating-point processing power | no data | 0.6927 TFLOPS |
| ROPs | no data | 16 |
| TMUs | 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 | no data | PCIe 3.0 x16 |
| Length | no data | 145 mm |
| Width | no data | 1-slot |
| Supplementary power connectors | no data | None |
| SLI options | + | - |
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 | DDR3 |
| Maximum RAM amount | 2x 8 GB | 2 GB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 3500 MHz | 891 MHz |
| Memory bandwidth | no data | 28.51 GB/s |
| Shared memory | - | no data |
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 | 1x DVI, 1x HDMI, 1x DisplayPort |
| HDMI | - | + |
| G-SYNC support | + | - |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12_1 | 12 (11_0) |
| Shader Model | no data | 5.1 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 1.2 |
| Vulkan | - | 1.1.126 |
| CUDA | + | 3.0 |
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 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.
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 | 132
+1220%
| 10−12
−1220%
|
| 4K | 65
+1200%
| 5−6
−1200%
|
Cost per frame, $
| 1080p | no data | 9.90 |
| 4K | no data | 19.80 |
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 65−70
+1260%
|
5−6
−1260%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 80−85
+1267%
|
6−7
−1267%
|
| Assassin's Creed Valhalla | 65−70
+1240%
|
5−6
−1240%
|
| Battlefield 5 | 120−130
+1278%
|
9−10
−1278%
|
| Call of Duty: Modern Warfare | 75−80
+1200%
|
6−7
−1200%
|
| Cyberpunk 2077 | 65−70
+1260%
|
5−6
−1260%
|
| Far Cry 5 | 80−85
+1300%
|
6−7
−1300%
|
| Far Cry New Dawn | 95−100
+1271%
|
7−8
−1271%
|
| Forza Horizon 4 | 190−200
+1257%
|
14−16
−1257%
|
| Hitman 3 | 80−85
+1267%
|
6−7
−1267%
|
| Horizon Zero Dawn | 160−170
+1250%
|
12−14
−1250%
|
| Metro Exodus | 120−130
+1278%
|
9−10
−1278%
|
| Red Dead Redemption 2 | 90−95
+1200%
|
7−8
−1200%
|
| Shadow of the Tomb Raider | 140−150
+1310%
|
10−11
−1310%
|
| Watch Dogs: Legion | 120−130
+1322%
|
9−10
−1322%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 80−85
+1267%
|
6−7
−1267%
|
| Assassin's Creed Valhalla | 65−70
+1240%
|
5−6
−1240%
|
| Battlefield 5 | 120−130
+1278%
|
9−10
−1278%
|
| Call of Duty: Modern Warfare | 75−80
+1200%
|
6−7
−1200%
|
| Cyberpunk 2077 | 65−70
+1260%
|
5−6
−1260%
|
| Far Cry 5 | 80−85
+1300%
|
6−7
−1300%
|
| Far Cry New Dawn | 95−100
+1271%
|
7−8
−1271%
|
| Forza Horizon 4 | 190−200
+1257%
|
14−16
−1257%
|
| Hitman 3 | 80−85
+1267%
|
6−7
−1267%
|
| Horizon Zero Dawn | 160−170
+1250%
|
12−14
−1250%
|
| Metro Exodus | 120−130
+1278%
|
9−10
−1278%
|
| Red Dead Redemption 2 | 90−95
+1200%
|
7−8
−1200%
|
| Shadow of the Tomb Raider | 140−150
+1310%
|
10−11
−1310%
|
| The Witcher 3: Wild Hunt | 137
+1270%
|
10−11
−1270%
|
| Watch Dogs: Legion | 120−130
+1322%
|
9−10
−1322%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 80−85
+1267%
|
6−7
−1267%
|
| Assassin's Creed Valhalla | 65−70
+1240%
|
5−6
−1240%
|
| Call of Duty: Modern Warfare | 75−80
+1200%
|
6−7
−1200%
|
| Cyberpunk 2077 | 65−70
+1260%
|
5−6
−1260%
|
| Far Cry 5 | 80−85
+1300%
|
6−7
−1300%
|
| Forza Horizon 4 | 190−200
+1257%
|
14−16
−1257%
|
| Hitman 3 | 80−85
+1267%
|
6−7
−1267%
|
| Horizon Zero Dawn | 160−170
+1250%
|
12−14
−1250%
|
| Shadow of the Tomb Raider | 140−150
+1310%
|
10−11
−1310%
|
| The Witcher 3: Wild Hunt | 74
+1380%
|
5−6
−1380%
|
| Watch Dogs: Legion | 120−130
+1322%
|
9−10
−1322%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 90−95
+1200%
|
7−8
−1200%
|
1440p
High Preset
| Battlefield 5 | 70−75
+1380%
|
5−6
−1380%
|
| Far Cry New Dawn | 55−60
+1375%
|
4−5
−1375%
|
1440p
Ultra Preset
| Assassin's Creed Odyssey | 40−45
+1300%
|
3−4
−1300%
|
| Assassin's Creed Valhalla | 40−45
+1300%
|
3−4
−1300%
|
| Call of Duty: Modern Warfare | 45−50
+1400%
|
3−4
−1400%
|
| Cyberpunk 2077 | 30−33
+1400%
|
2−3
−1400%
|
| Far Cry 5 | 45−50
+1400%
|
3−4
−1400%
|
| Forza Horizon 4 | 210−220
+1256%
|
16−18
−1256%
|
| Hitman 3 | 50−55
+1567%
|
3−4
−1567%
|
| Horizon Zero Dawn | 80−85
+1300%
|
6−7
−1300%
|
| Metro Exodus | 70−75
+1340%
|
5−6
−1340%
|
| Shadow of the Tomb Raider | 90−95
+1229%
|
7−8
−1229%
|
| The Witcher 3: Wild Hunt | 55−60
+1300%
|
4−5
−1300%
|
| Watch Dogs: Legion | 190−200
+1257%
|
14−16
−1257%
|
1440p
Epic Preset
| Red Dead Redemption 2 | 65−70
+1220%
|
5−6
−1220%
|
4K
High Preset
| Battlefield 5 | 35−40
+1200%
|
3−4
−1200%
|
| Far Cry New Dawn | 30−35
+1500%
|
2−3
−1500%
|
| Hitman 3 | 30−35
+1450%
|
2−3
−1450%
|
| Horizon Zero Dawn | 180−190
+1400%
|
12−14
−1400%
|
| Metro Exodus | 45−50
+1533%
|
3−4
−1533%
|
| The Witcher 3: Wild Hunt | 51
+1600%
|
3−4
−1600%
|
4K
Ultra Preset
| Assassin's Creed Odyssey | 24−27
+1200%
|
2−3
−1200%
|
| Assassin's Creed Valhalla | 24−27
+2300%
|
1−2
−2300%
|
| Call of Duty: Modern Warfare | 24−27
+2400%
|
1−2
−2400%
|
| Cyberpunk 2077 | 12−14
+1200%
|
1−2
−1200%
|
| Far Cry 5 | 21−24
+2200%
|
1−2
−2200%
|
| Forza Horizon 4 | 50−55
+1250%
|
4−5
−1250%
|
| Shadow of the Tomb Raider | 50−55
+1225%
|
4−5
−1225%
|
| Watch Dogs: Legion | 18−20
+1800%
|
1−2
−1800%
|
4K
Epic Preset
| Red Dead Redemption 2 | 30−35
+1600%
|
2−3
−1600%
|
This is how GTX 980 SLI Mobile and GT 640 compete in popular games:
- GTX 980 SLI Mobile is 1220% faster in 1080p
- GTX 980 SLI Mobile is 1200% faster in 4K
Pros & cons summary
| Performance score | 39.24 | 3.05 |
| Recency | 22 September 2015 | 5 June 2012 |
| Power consumption (TDP) | 330 Watt | 65 Watt |
GTX 980 SLI Mobile has a 1186.6% higher aggregate performance score, and an age advantage of 3 years.
GT 640, on the other hand, has 407.7% lower power consumption.
The GeForce GTX 980 SLI Mobile is our recommended choice as it beats the GeForce GT 640 in performance tests.
Be aware that GeForce GTX 980 SLI Mobile is a notebook card while GeForce GT 640 is a desktop one.
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.
