Contents:HighlightsSummaryGaming PerformanceBenchmark PerformanceTechnical SpecsRelated ComparisonsRelated GPUs
Performance
GeForce GT 640M
1,7282% of 104,598
Radeon 660M290% better
6,7436% of 104,598
The Radeon 660M has 290% better performance than the GeForce GT 640M for the 3DMark 11 Performance GPU benchmark.
Performance per dollar
GeForce GT 640M
No data available
Radeon 660M
No data available
We do not have any performance per dollar data for the GeForce GT 640M and the Radeon 660M for the 3DMark 11 Performance GPU benchmark.
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Summary
#
About the NVIDIA GeForce GT 640M GPU
The NVIDIA GeForce GT 640M is an end-of-life mobile graphics card that released in Q1 2012. It is built on the Kepler GPU microarchitecture (codename GK107) and is manufactured on a 28 nm process.
Memory
The GT 640M 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 640M includes 384 CUDA cores, the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 624 MHz and can dynamically boost its clock speed up to 709 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 640M has the 386th best 3DMark 11 Performance GPU score among the 543 benchmarked GPUs in our database. It achieves 1.65% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 4090.
About the AMD Radeon 660M GPU
The AMD Radeon 660M is a mobile graphics card that launched in Q1 2022. It is built on the RDNA 2.0 GPU microarchitecture (codename Rembrandt) and is manufactured on a 6 nm process.
Cores and Clock Speeds
The 660M includes 384 stream processors (SPs), the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 1,500 MHz and can dynamically boost its clock speed up to 1,900 MHz. Complementing the processing units are 24 texture mapping units (TMUs) for efficient texture filtering and 16 render output units (ROPs) for pixel processing. Additionally, the GPU features 6 ray accelerators dedicated to real-time ray tracing calculations.
Compatibility & Power Consumption
The GPU has a thermal design power (TDP) of 40 W. A power supply not strong enough to handle this might result in system crashes and potentially damage your hardware.
Benchmark Performance
The 660M has the 223rd best 3DMark 11 Performance GPU score among the 543 benchmarked GPUs in our database. It achieves 6.45% 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 640M | Radeon 660M |
|---|---|---|
| Manufacturer | NVIDIA | AMD |
| Architecture | Kepler | RDNA 2.0 |
| Market Segment | Mobile | Mobile |
| Release Date | Q1 2012 | Q1 2022 |
| Production Status | End-of-life | Active |
| Shop | Check Price | Check Price |
Gaming Performance
#
Select a game to compare FPS metrics
F1 24
Sons of the Forest
Baldur's Gate 3
F1 23
Riders Republic
Diablo 4
Far Cry 6
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 24 | GeForce GT 640M | Radeon 660M |
|---|---|---|
| Low - 1080p | -- | 35 FPS |
| Medium - 1080p | -- | 30 FPS |
| High - 1080p | -- | 23 FPS |
| Ultra - 1080p | -- | 6 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 640M orRadeon 660M
| GPU | Frames Per Second | |
|---|---|---|
| GeForce MX450 | 13.4 | +139% |
| Radeon 680M | 7.41 | +32% |
| Radeon 660M | 5.6 | |
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 640M orRadeon 660M
| 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 640M
1,7282% of 104,598
Radeon 660M290% better
6,7436% of 104,598
The Radeon 660M has 290% better performance than the GeForce GT 640M for the 3DMark 11 Performance GPU benchmark.
The GeForce GT 640M is ranked 386th with a score of 1,728, and the Radeon 660M is ranked 223rd with a score of 6,743.
Performance per dollar
GeForce GT 640M
No data available
Radeon 660M
No data available
We do not have any performance per dollar data for the GeForce GT 640M and the Radeon 660M 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 640M or
| GPU | Benchmark Performance | |
|---|---|---|
| Radeon R9 M290X | 6,817 | +295% |
| Radeon Pro 460 | 6,749 | +291% |
| Radeon 660M | 6,743 | +290% |
| GeForce GTX 680MX (Mac Edition) | 6,736 | +290% |
| GeForce MX350 | 6,166 | +257% |
| Radeon R5 M255 | 1,784 | +3% |
| GeForce 825M | 1,756.5 | +2% |
| GeForce GT 640M | 1,728 | |
| FirePro M4100 | 1,728 | 0% |
| GeForce GT 730M | 1,722 | -0% |
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 640M orRadeon 660M
| 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 640M | Radeon 660M |
|---|---|---|
| 3DMark Time Spy Graphics | -- | 1,544 |
| 3DMark Time Spy Score | -- | 1,714.5 |
| 3DMark Cloud Gate Graphics | 9,024 | 31,514.5 (+249.23%) |
| 3DMark Fire Strike Standard Graphics | 1,225 | 4,848 (+295.76%) |
| 3DMark 11 Performance Score | 1,860.5 | 7,067 (+279.84%) |
| Cinebench R15 OpenGL 64 Bit | 42.4 | 121.3 (+186.08%) |
| PassMark G3D Mark | 927 | -- |
| PassMark G2D Mark | 197 | -- |
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 640M | Radeon 660M |
|---|---|---|
| Codename | GK107 | Rembrandt |
| Architecture | Kepler | RDNA 2.0 |
| Process Size | 28 nm | 6 nm |
| Transistors | 1,270 million | 13,100 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 640M | Radeon 660M |
|---|---|---|
| Memory Size | 2 GB | System Shared |
| Memory Type | DDR3 | System Shared |
| Memory Bandwidth | 28.8 Gb/s | System Dependent |
| Memory Clock | 900 MHz | System Shared |
| Memory Interface | 128 bit | System Shared |
| L1 Cache | 16 KB | 128 KB |
| L2 Cache | 256 KB | 2 MB |
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 640M | Radeon 660M |
|---|---|---|
| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |
| Thermal Design Power (TDP) | 32 W | 40 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 640M | Radeon 660M |
|---|---|---|
| Stream Processors (SP) | -- | 384 |
| CUDA Cores | 384 | -- |
| Compute Units (CU) | -- | 6 |
| Stream Multiprocessors (SM) | 2 | -- |
| Texture Mapping Units (TMU) | 32 | 24 |
| Render Output Units (ROP) | 16 | 16 |
| Ray Accelerators | -- | 6 |
| Core Clock Speed | 624 MHz | 1,500 MHz |
| Core Clock Speed (Boost) | 709 MHz | 1,900 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 640M | Radeon 660M |
|---|---|---|
| Pixel Fill Rate | 5.67 GPixel/s | 30.4 GPixel/s |
| Texture Fill Rate | 22.69 GTexel/s | 45.6 GTexel/s |
| FP32 Performance | 544.5 GFLOPS | 1,459 GFLOPS |
| FP64 Performance | 22.69 GFLOPS | 91.2 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 640M | Radeon 660M |
|---|---|---|
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| OpenCL | 3.0 | 2.0 |
| OpenGL | 4.6 | 4.6 |
| Shader Model | 6.5 (5.1) | 6.8 |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance GPU benchmark and MSRP.