Contents:HighlightsSummaryGaming PerformanceBenchmark PerformanceTechnical SpecsRelated ComparisonsRelated GPUs
Performance
GeForce GT 645M
1,844.52% of 104,598
GeForce 940MX39% better
2,5562% of 104,598
The GeForce 940MX has 39% better performance than the GeForce GT 645M for the 3DMark 11 Performance GPU benchmark.
Performance per dollar
GeForce GT 645M
No data available
GeForce 940MX
No data available
We do not have any performance per dollar data for the GeForce GT 645M and the GeForce 940MX for the 3DMark 11 Performance GPU benchmark.
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Summary
#
About the NVIDIA GeForce GT 645M GPU
The NVIDIA GeForce GT 645M is an end-of-life mobile graphics card that released in Q4 2012. It is built on the Kepler GPU microarchitecture (codename GK107) and is manufactured on a 28 nm process.
Memory
The GT 645M has 2 GB of DDR3 memory, with a 900 MHz memory clock and a 128 bit interface. This gives it a memory bandwidth of 28.8 Gb/s, which affects how fast it can transfer data to and from memory. GPU memory stores temporary data that helps the GPU with complex math and graphics operations. More memory is generally better, as not having enough can cause performance bottlenecks.
Cores and Clock Speeds
The GT 645M includes 384 CUDA cores, the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 709 MHz and can dynamically boost its clock speed up to 780 MHz. Complementing the processing units are 32 texture mapping units (TMUs) for efficient texture filtering and 16 render output units (ROPs) for pixel processing.
Compatibility & Power Consumption
The GPU has a thermal design power (TDP) of 32 W. A power supply not strong enough to handle this might result in system crashes and potentially damage your hardware.
Benchmark Performance
The GT 645M has the 372nd best 3DMark 11 Performance GPU score among the 543 benchmarked GPUs in our database. It achieves 1.76% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 4090.
About the NVIDIA GeForce 940MX GPU
The NVIDIA GeForce 940MX is an end-of-life mobile graphics card that released in 2016. It is built on the Maxwell GPU microarchitecture (codename GM108) and is manufactured on a 28 nm process.
Memory
The 940MX has 1,024 MB of GDDR5 memory, with a 1,253 MHz memory clock and a 64 bit interface. This gives it a memory bandwidth of 40.1 Gb/s, which affects how fast it can transfer data to and from memory. GPU memory stores temporary data that helps the GPU with complex math and graphics operations. More memory is generally better, as not having enough can cause performance bottlenecks.
Cores and Clock Speeds
The 940MX includes 384 CUDA cores, the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 954 MHz and can dynamically boost its clock speed up to 993 MHz. Complementing the processing units are 24 texture mapping units (TMUs) for efficient texture filtering and 8 render output units (ROPs) for pixel processing.
Compatibility & Power Consumption
The GPU has a thermal design power (TDP) of 23 W. A power supply not strong enough to handle this might result in system crashes and potentially damage your hardware.
Benchmark Performance
The 940MX has the 322nd best 3DMark 11 Performance GPU score among the 543 benchmarked GPUs in our database. It achieves 2.44% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 4090.
General Info
General overview of the GPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| Manufacturer | NVIDIA | NVIDIA |
| Architecture | Kepler | Maxwell |
| Market Segment | Mobile | Mobile |
| Release Date | Q4 2012 | 2016 |
| Production Status | End-of-life | End-of-life |
| Shop | Check Price | Check Price |
Gaming Performance
#
Select a game to compare FPS metrics
F1 2020
Dirt Rally 2.0
Far Cry New Dawn
Battlefield V
Hitman 2
Assassin´s Creed Odyssey
Forza Horizon 4
FPS Benchmarks
This table showcases the average frame rate (FPS) achieved both GPUs in at various resolutions. Frame rate is a crucial indicator of how smoothly the GPU can run the game. A higher FPS generally translates to a smoother gameplay experience.
- Frames Per Second
F1 2020 | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| Low - 720p | -- | 48 FPS |
| Medium - 1080p | -- | 23 FPS |
| High - 1080p | -- | 18 FPS |
| Ultra - 1080p | -- | 11 FPS |
| QHD - 1440p | -- | -- |
| 4K UHD - 2160p | -- | -- |
FPS Source: Notebookcheck
Compare Frames Per Second (FPS)
The average frame rate (FPS) in can be compared to similar GPUs to assess relative performance. Generally, higher FPS results in a smoother gameplay experience.
Choose Baseline GPU:GeForce GT 645M orGeForce 940MX
| GPU | Frames Per Second | |
|---|---|---|
| GeForce GTX 950M | 18.5 | +65% |
| GeForce MX150 | 16 | +43% |
| GeForce MX330 | 16 | +43% |
| GeForce MX250 | 16 | +43% |
| GeForce MX130 | 12.6 | +13% |
| GeForce 940MX | 11.2 | |
| GeForce 930MX | 9.74 | -13% |
Compare Cost Per Frame
The average cost per frame in can be compared to similar GPUs to assess relative value. Generally, a lower cost per frame implies better value for your money.
Choose Baseline GPU:GeForce GT 645M orGeForce 940MX
| GPU | Cost Per Frame | |
|---|---|---|
| Our database does not have enough data to compare the FPS per dollar with other GPUs. | ||
Benchmark Performance
#
Performance
GeForce GT 645M
1,844.52% of 104,598
GeForce 940MX39% better
2,5562% of 104,598
The GeForce 940MX has 39% better performance than the GeForce GT 645M for the 3DMark 11 Performance GPU benchmark.
The GeForce GT 645M is ranked 372nd with a score of 1,844.5, and the GeForce 940MX is ranked 322nd with a score of 2,556.
Performance per dollar
GeForce GT 645M
No data available
GeForce 940MX
No data available
We do not have any performance per dollar data for the GeForce GT 645M and the GeForce 940MX for the 3DMark 11 Performance GPU benchmark.
Relative Performance
The average score in the benchmark test can be compared to similar GPUs to assess relative performance. Generally, powerful GPUs tend to have higher scores.
Choose Baseline GPU:GeForce GT 645M or
| GPU | Benchmark Performance | |
|---|---|---|
| Quadro M520 | 2,658 | +44% |
| Radeon R9 M265X | 2,633 | +43% |
| GeForce 940MX | 2,556 | +39% |
| GeForce GT 750M | 2,543 | +38% |
| Radeon R7 M370 | 2,524 | +37% |
| Radeon R7 M270 | 1,857.5 | +1% |
| GeForce GT 740M | 1,848 | +0% |
| GeForce GT 645M | 1,844.5 | |
| GeForce 920MX | 1,835 | -1% |
| Quadro K1100M | 1,826.5 | -1% |
Relative Value For Money
The average performance per dollar in the benchmark test can be compared to similar GPUs to assess relative value. A higher score implies a better value for your money.
Choose Baseline GPU:GeForce GT 645M orGeForce 940MX
| GPU | Performance Per Dollar | ||
|---|---|---|---|
| Our database does not have enough data to compare the benchmark performance per dollar with other GPUs. | |||
Benchmark Scores
This table showcases the average performance scores achieved by both GPUs across industry-standard benchmark tests. These scores provide a valuable insight into overall performance. Powerful GPUs tend to have higher scores.
- Popular
| Benchmark | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| 3DMark Time Spy Graphics | -- | 626 |
| 3DMark Time Spy Score | -- | 710 |
| 3DMark Cloud Gate Graphics | 8,654.5 | 11,513 (+33.03%) |
| 3DMark Fire Strike Standard Graphics | 1,151.5 | 1,996 (+73.34%) |
| 3DMark 11 Performance Score | 1,962.5 | 2,660.5 (+35.57%) |
| Cinebench R15 OpenGL 64 Bit | -- | 64.5 |
| PassMark G3D Mark | 934 | 1,517 (+62.42%) |
| PassMark G2D Mark | 158 | 170 (+7.59%) |
| Unigine Heaven 3.0 DirectX 11 | 17.7 | 25.2 (+42.37%) |
| Unigine Heaven 3.0 OpenGL | -- | 22 |
Benchmarks Source: Notebookcheck
Technical Specs
#
Graphics Processor
General information about the graphics processing unit like their architecture, manufacturing process size, and transistor count. Newer GPU architectures generally bring efficiency improvements and may introduce technologies that enhance graphical capabilities.
| Spec | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| Codename | GK107 | GM108 |
| Architecture | Kepler | Maxwell |
| Process Size | 28 nm | 28 nm |
| Transistors | 1,270 million | 1,020 million |
Memory Details
Memory specifications like their capacity, bandwidth, and clock speeds. GPU memory stores graphics data like frames, textures, and shadows which helps display rendered images. These specs are crucial for graphics-intense applications like gaming and 3D modeling.
| Spec | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| Memory Size | 2 GB | 1,024 MB |
| Memory Type | DDR3 | GDDR5 |
| Memory Bandwidth | 28.8 Gb/s | 40.1 Gb/s |
| Memory Clock | 900 MHz | 1,253 MHz |
| Memory Interface | 128 bit | 64 bit |
| L1 Cache | 16 KB | 64 KB |
| L2 Cache | 256 KB | 1,024 KB |
Board Compatibility
Compatibility information like their slot size, bus interface, power consumption, and display support. These specs are useful for verifying compatibility with your motherboard, power supply, and monitor.
| Spec | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Thermal Design Power (TDP) | 32 W | 23 W |
| Outputs | Device Dependent | Device Dependent |
Cores & Clock Speeds
Processing power information like its cores and clock speed. These specs impact how fast they can process graphics. Each type of core or component serves a specific computational purpose.
| Spec | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| CUDA Cores | 384 | 384 |
| Stream Multiprocessors (SM) | 2 | -- |
| Texture Mapping Units (TMU) | 32 | 24 |
| Render Output Units (ROP) | 16 | 8 |
| Core Clock Speed | 709 MHz | 954 MHz |
| Core Clock Speed (Boost) | 780 MHz | 993 MHz |
Theoretical Performance
Theoretical performance numbers derived from the raw specifications of the different components like core count and clock speeds. While these provide a glimpse into peak processing power, they do not represent real-world performance.
| Spec | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| Pixel Fill Rate | 6.24 GPixel/s | 7.94 GPixel/s |
| Texture Fill Rate | 24.96 GTexel/s | 23.83 GTexel/s |
| FP32 Performance | 599 GFLOPS | 762.6 GFLOPS |
| FP64 Performance | 24.96 GFLOPS | 23.83 GFLOPS |
API Support
Graphics API versions supported by these graphics cards. APIs evolve over time, introducing new features and functionalities. Older GPUs may not support recent versions.
| Spec | GeForce GT 645M | GeForce 940MX |
|---|---|---|
| DirectX | 12 (11_0) | 12 (11_0) |
| OpenCL | 3.0 | 3.0 |
| OpenGL | 4.6 | 4.6 |
| Shader Model | 6.5 (5.1) | 6.7 (5.1) |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance GPU benchmark and MSRP.