Summary
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Performance
We do not have performance data for the GeForce GT 640 for the 3DMark 11 Performance GPU benchmark.
Performance per dollar
We do not have performance per dollar data for the GeForce GT 640 for the 3DMark 11 Performance GPU benchmark.
Specs at a glance
Memory2 GB DDR3
Slots1 slot
TDP65 W
Release DateQ2 2012
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About the NVIDIA GeForce GT 640 GPU
The NVIDIA GeForce GT 640 is an end-of-life desktop graphics card that released in Q2 2012 with a MSRP of $99. It is built on the Kepler GPU microarchitecture (codename GK107) and is manufactured on a 28 nm process.
Memory
The GT 640 has 2 GB of DDR3 memory, with a 891 MHz memory clock and a 128 bit interface. This gives it a memory bandwidth of 28.51 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 640 includes 384 CUDA cores, the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 900 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 GT 640 is a compact, low-profile graphics card that fits into 1 PCIe expansion slot. It supports DVI, HDMI 1.4a, DisplayPort 1.2 display connections. NVIDIA recommends a power supply of at least 250 W to handle the GPU's thermal design power (TDP) of 65 W.
General Info
General overview of the GPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | Value |
|---|---|
| Manufacturer | NVIDIA |
| Architecture | Kepler |
| Market Segment | Desktop |
| Release Date | Q2 2012 |
| Launch Price (MSRP) | $99 |
| Production Status | End-of-life |
| Shop | Check Price |
Gaming Performance
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Our database does not have gaming performance data for the NVIDIA GeForce GT 640.
Benchmark Performance
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Performance
We do not have performance data for the GeForce GT 640 for the 3DMark 11 Performance GPU benchmark.
Performance per dollar
We do not have performance per dollar data for the GeForce GT 640 for the 3DMark 11 Performance GPU benchmark.
Compare Performance
GeForce GT 640's average score in the benchmark can be compared to similar GPUs to assess relative performance. Generally, more powerful GPUs tend to have higher scores.
| GPU | Benchmark Performance | ||
|---|---|---|---|
| Our database does not have enough data to compare the benchmark performance with other GPUs. | |||
Compare Value For Money
GeForce GT 640's average performance per dollar in the benchmark can be compared to similar GPUs to assess relative value. A higher score generally implies better value for your money.
| 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 GeForce GT 640's average performance scores across industry-standard GPU benchmark tests. These scores provide a valuable insight into overall performance. Powerful GPUs tend to have higher scores.
- Popular
| Benchmark | Value |
|---|---|
| PassMark G3D Mark | 1,175 |
| PassMark G2D Mark | 289 |
Benchmarks Source: Notebookcheck
Technical Specs
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Processor Details
General information about the graphics processing unit like its architecture, manufacturing process size, and transistor count. Newer GPU architectures generally bring efficiency improvements and may introduce technologies that enhance graphical capabilities.
| Spec | Value |
|---|---|
| Codename | GK107 |
| Architecture | Kepler |
| Process Size | 28 nm |
| Transistors | 1,270 million |
Board Compatibility
Compatibility information like its slot size, bus interface, power consumption, and display support. These specs are useful for verifying compatibility with your motherboard, power supply, and monitor.
| Spec | Value |
|---|---|
| Slots | 1 slot |
| Bus Interface | PCIe 3.0 x16 |
| Thermal Design Power (TDP) | 65 W |
| Suggested PSU | 250 W |
| Outputs | DVI, HDMI 1.4a, DisplayPort 1.2 |
Memory Details
Memory specifications like its 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 | Value |
|---|---|
| Memory Size | 2 GB |
| Memory Type | DDR3 |
| Memory Bandwidth | 28.51 Gb/s |
| Memory Clock | 891 MHz |
| Memory Interface | 128 bit |
| L1 Cache | 16 KB |
| L2 Cache | 256 KB |
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 | Value |
|---|---|
| CUDA Cores | 384 |
| Stream Multiprocessors (SM) | 2 |
| Texture Mapping Units (TMU) | 32 |
| Render Output Units (ROP) | 16 |
| Core Clock Speed | 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 | Value |
|---|---|
| Pixel Fill Rate | 7.22 GPixel/s |
| Texture Fill Rate | 28.86 GTexel/s |
| FP32 Performance | 692.7 GFLOPS |
| FP64 Performance | 28.86 GFLOPS |
API Support
Graphics API versions supported by this graphics card. APIs evolve over time, introducing new features and functionalities. Older GPUs may not support recent versions.
| Spec | Value |
|---|---|
| DirectX | 12 (11_0) |
| OpenCL | 3.0 |
| OpenGL | 4.6 |
| Shader Model | 6.5 (5.1) |
* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance GPU benchmark and MSRP.