
GeForce GT 640M LE

NVS 510
GeForce GT 640M LE vs NVS 510 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 NVS 510 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
GeForce GT 640M LE vs NVS 510: 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 $369 less on MSRP ($80 MSRP vs $449 MSRP).
- ✅Delivers 475.3% more G3D Mark for each dollar spent, at 8.7 vs 1.5 G3D/$ ($80 MSRP vs $449 MSRP).
- ✅Draws 32W instead of 68W, a 36W reduction.
Trade-offs
- ❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
NVS 510
2015Why buy it
- ✅More future proof: Maxwell (2014−2017) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌2015 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌461.3% HIGHER MSRP$449 MSRPvs$80 MSRP
- ❌Lower G3D Mark per dollar, at 1.5 vs 8.7 G3D/$ ($449 MSRP vs $80 MSRP).
- ❌112.5% higher power demand at 68W vs 32W.
Quick Answers
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GeForce GT 640M LE vs NVS 510 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.

NVS 510
The NVS 510 is manufactured by NVIDIA. It was released in November 4 2015. It features the Maxwell architecture. The core clock ranges from 902 MHz to 1033 MHz. It has 512 ×2 shading units. The thermal design power (TDP) is 68W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 680 points.
Graphics Performance
The GeForce GT 640M LE scores 697 and the NVS 510 reaches 680 in the G3D Mark benchmark — just a 2.5% difference, making them near-identical in rasterization performance. The GeForce GT 640M LE is built on Kepler while the NVS 510 uses Maxwell, both on a 28 nm process. Shader units: 384 (GeForce GT 640M LE) vs 512 (NVS 510). Raw compute: 0.48 TFLOPS (GeForce GT 640M LE) vs 1.058 TFLOPS ×2 (NVS 510). Boost clocks: 645 MHz vs 1033 MHz.
| Feature | GeForce GT 640M LE | NVS 510 |
|---|---|---|
| G3D Mark Score | 697+3% | 680 |
| Architecture | Kepler | Maxwell |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 512 ×2+33% |
| Compute (TFLOPS) | 0.48 TFLOPS | 1.058 TFLOPS ×2+120% |
| Boost Clock | 645 MHz | 1033 MHz+60% |
| ROPs | 16 | 16 ×2 |
| TMUs | 32 | 32 ×2 |
| L1 Cache | 32 KB | 256 KB+700% |
| L2 Cache | 0.25 MB | 1 MB+300% |
Advanced Features (DLSS/FSR)
The GeForce GT 640M LE gets NVIDIA DLSS, which still tends to look cleaner in motion. The NVS 510 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GT 640M LE | NVS 510 |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | Standard |
Video Memory (VRAM)
Both cards ship with 2 GB of GDDR5. Memory bus width is 128-bit on the GeForce GT 640M LE and 64-bit on the NVS 510. L2 Cache: 0.25 MB (GeForce GT 640M LE) vs 1 MB (NVS 510) — the NVS 510 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 640M LE | NVS 510 |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 0.25 MB | 1 MB+300% |
Display & API Support
DirectX support: 12 (11_0) (GeForce GT 640M LE) vs 12 (11_0) (NVS 510). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | GeForce GT 640M LE | NVS 510 |
|---|---|---|
| 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 1st Gen NVENC (NVS 510). Decoder: VP5 vs 1st Gen NVDEC (VP5). Supported codecs: H.264,MPEG-2,VC-1,MPEG-4 (GeForce GT 640M LE) vs H.264,VC-1,MPEG-2,MPEG-4 (NVS 510).
| Feature | GeForce GT 640M LE | NVS 510 |
|---|---|---|
| Encoder | NVENC 1st Gen | 1st Gen NVENC |
| Decoder | VP5 | 1st Gen NVDEC (VP5) |
| Codecs | H.264,MPEG-2,VC-1,MPEG-4 | H.264,VC-1,MPEG-2,MPEG-4 |
Power & Dimensions
The GeForce GT 640M LE draws 32W versus the NVS 510's 68W — a 72% difference. The GeForce GT 640M LE is more power-efficient. Recommended PSU: 350W (GeForce GT 640M LE) vs 350W (NVS 510). Power connectors: PCIe-powered vs PCIe-powered. Card length: 0mm vs 160mm, occupying 0 vs 1 slots. Typical load temperature: 85 vs 65°C.
| Feature | GeForce GT 640M LE | NVS 510 |
|---|---|---|
| TDP | 32W-53% | 68W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 0mm | 160mm |
| Height | 0mm | 69mm |
| Slots | 0-100% | 1 |
| Temp (Load) | 85 | 65°C-24% |
| Perf/Watt | 21.8+118% | 10.0 |
Value Analysis
At launch, the GeForce GT 640M LE came in at $80, while the NVS 510 launched at $449. On MSRP, GeForce GT 640M LE was 82.2% cheaper ($369 less). Performance per dollar on MSRP (G3D Mark / MSRP): 8.7 (GeForce GT 640M LE) vs 1.5 (NVS 510) — the GeForce GT 640M LE offers 480% better value. The newer card here is NVS 510 (2015 vs 2012).
| Feature | GeForce GT 640M LE | NVS 510 |
|---|---|---|
| MSRP | $80-82% | $449 |
| Performance per Dollar | 8.7+480% | 1.5 |
| Codename | GK107 | GM107 |
| Release | March 22 2012 | November 4 2015 |
| Ranking | #909 | #826 |
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