
GeForce GT 640M LE

GeForce GT 740A
GeForce GT 640M LE vs GeForce GT 740A Performance Spectrum
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
GeForce GT 640M LE vs GeForce GT 740A FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
GeForce GT 640M LE vs GeForce GT 740A: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce GT 640M LE
2012Why buy it
- ✅Costs $9 less on MSRP ($80 MSRP vs $89 MSRP).
- ✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
- ✅Draws 32W instead of 64W, a 32W reduction.
Trade-offs
- ❌Lower average FPS than GeForce GT 740A across 50 tracked games in our benchmark data.
- ❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
GeForce GT 740A
2014Why buy it
- ✅1.8% more average FPS across 50 tracked games in our benchmark data.
Trade-offs
- ❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
- ❌2014 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌11.3% HIGHER MSRP$89 MSRPvs$80 MSRP
- ❌100% higher power demand at 64W vs 32W.
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GeForce GT 640M LE vs GeForce GT 740A Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce GT 640M LE
The GeForce GT 640M LE is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 625 MHz to 645 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 697 points.

GeForce GT 740A
The GeForce GT 740A is manufactured by NVIDIA. It was released in May 29 2014. It features the Kepler architecture. The core clock speed is 993 MHz. It has 384 shading units. The thermal design power (TDP) is 64W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 710 points. Launch price was $89.
Graphics Performance
The GeForce GT 640M LE scores 697 and the GeForce GT 740A reaches 710 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The GeForce GT 640M LE is built on Kepler while the GeForce GT 740A uses Kepler, both on a 28 nm process. Shader units: 384 (GeForce GT 640M LE) vs 384 (GeForce GT 740A). Raw compute: 0.48 TFLOPS (GeForce GT 640M LE) vs 0.7626 TFLOPS (GeForce GT 740A).
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| G3D Mark Score | 697 | 710+2% |
| Architecture | Kepler | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.48 TFLOPS | 0.7626 TFLOPS+59% |
| ROPs | 16 | 16 |
| TMUs | 32 | 32 |
| L1 Cache | 32 KB | 32 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | NVIDIA Reflex |
Video Memory (VRAM)
The GeForce GT 640M LE has 2 GB of VRAM, while the GeForce GT 740A carries 512 MB. GeForce GT 640M LE gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce GT 640M LE and 64-bit on the GeForce GT 740A.
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| VRAM Capacity | 2 GB+300% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 256 KB | 256 KB |
Display & API Support
DirectX support: 12 (11_0) (GeForce GT 640M LE) vs 12 (11_0) (GeForce GT 740A). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| DirectX | 12 (11_0) | 12 (11_0) |
| Vulkan | 1.2 | 1.2 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: NVENC 1st Gen (GeForce GT 640M LE) vs NVENC (Kepler) (GeForce GT 740A). Decoder: VP5 vs PureVideo HD VP5. Supported codecs: H.264,MPEG-2,VC-1,MPEG-4 (GeForce GT 640M LE) vs H.264,VC-1,MPEG-2 (GeForce GT 740A).
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| Encoder | NVENC 1st Gen | NVENC (Kepler) |
| Decoder | VP5 | PureVideo HD VP5 |
| Codecs | H.264,MPEG-2,VC-1,MPEG-4 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GeForce GT 640M LE draws 32W versus the GeForce GT 740A's 64W — a 66.7% difference. The GeForce GT 640M LE is more power-efficient. Recommended PSU: 350W (GeForce GT 640M LE) vs 250W (GeForce GT 740A). Power connectors: PCIe-powered vs None. Typical load temperature: 85 vs 75°C.
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| TDP | 32W-50% | 64W |
| Recommended PSU | 350W | 250W-29% |
| Power Connector | PCIe-powered | None |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | 0 |
| Temp (Load) | 85 | 75°C-12% |
| Perf/Watt | 21.8+96% | 11.1 |
Value Analysis
At launch, the GeForce GT 640M LE came in at $80, while the GeForce GT 740A launched at $89. On MSRP, GeForce GT 640M LE was 10.1% cheaper ($9 less). Performance per dollar on MSRP (G3D Mark / MSRP): 8.7 (GeForce GT 640M LE) vs 8.0 (GeForce GT 740A) — the GeForce GT 640M LE offers 8.7% better value. The newer card here is GeForce GT 740A (2014 vs 2012).
| Feature | GeForce GT 640M LE | GeForce GT 740A |
|---|---|---|
| MSRP | $80-10% | $89 |
| Performance per Dollar | 8.7+9% | 8.0 |
| Codename | GK107 | GK107 |
| Release | March 22 2012 | May 29 2014 |
| Ranking | #909 | #777 |
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