
GeForce GT 640M

GRID K220Q
GeForce GT 640M vs GRID K220Q 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 vs GRID K220Q 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 vs GRID K220Q: 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
2012Why buy it
- ✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
- ✅Draws 32W instead of 225W, a 193W 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.
- ❌Lower G3D Mark per dollar, at 0 vs 1.9 G3D/$ (Unknown MSRP vs $469 MSRP).
GRID K220Q
2014Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 1.9 vs 0 G3D/$ ($469 MSRP vs Unknown MSRP).
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.
- ❌603.1% higher power demand at 225W vs 32W.
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GeForce GT 640M vs GRID K220Q Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce GT 640M
The GeForce GT 640M 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: 907 points.

GRID K220Q
The GRID K220Q is manufactured by NVIDIA. It was released in July 2 2014. It features the Kepler architecture. The core clock speed is 745 MHz. It has 1536 shading units. The thermal design power (TDP) is 225W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 912 points. Launch price was $469.
Graphics Performance
The GeForce GT 640M scores 907 and the GRID K220Q reaches 912 in the G3D Mark benchmark — just a 0.6% difference, making them near-identical in rasterization performance. The GeForce GT 640M is built on Kepler while the GRID K220Q uses Kepler, both on a 28 nm process. Shader units: 384 (GeForce GT 640M) vs 1,536 (GRID K220Q). Raw compute: 0.48 TFLOPS (GeForce GT 640M) vs 2.289 TFLOPS (GRID K220Q).
| Feature | GeForce GT 640M | GRID K220Q |
|---|---|---|
| G3D Mark Score | 907 | 912 |
| Architecture | Kepler | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 1536+300% |
| Compute (TFLOPS) | 0.48 TFLOPS | 2.289 TFLOPS+377% |
| ROPs | 16 | 32+100% |
| TMUs | 32 | 128+300% |
| L1 Cache | 32 KB | 128 KB+300% |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
The GeForce GT 640M gets NVIDIA DLSS, which still tends to look cleaner in motion. The GRID K220Q leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GT 640M | GRID K220Q |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | Standard |
Video Memory (VRAM)
The GeForce GT 640M has 2 GB of VRAM, while the GRID K220Q carries 512 MB. GeForce GT 640M 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 and 64-bit on the GRID K220Q. L2 Cache: 256 KB (GeForce GT 640M) vs 512 KB (GRID K220Q) — the GRID K220Q has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 640M | GRID K220Q |
|---|---|---|
| VRAM Capacity | 2 GB+300% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 256 KB | 512 KB+100% |
Display & API Support
DirectX support: 11.0 (GeForce GT 640M) vs 11_0 (GRID K220Q). Maximum simultaneous displays: 1 vs 2.
| Feature | GeForce GT 640M | GRID K220Q |
|---|---|---|
| DirectX | 11.0 | 11_0 |
| Max Displays | 1 | 2+100% |
Power & Dimensions
The GeForce GT 640M draws 32W versus the GRID K220Q's 225W — a 150.2% difference. The GeForce GT 640M is more power-efficient. Recommended PSU: 350W (GeForce GT 640M) vs 350W (GRID K220Q). Power connectors: PCIe-powered vs PCIe-powered. Card length: 0mm vs 265mm, occupying 0 vs 2 slots.
| Feature | GeForce GT 640M | GRID K220Q |
|---|---|---|
| TDP | 32W-86% | 225W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 0mm | 265mm |
| Height | 0mm | — |
| Slots | 0-100% | 2 |
| Temp (Load) | 70°C | — |
| Perf/Watt | 28.3+590% | 4.1 |
Value Analysis
The newer card here is GRID K220Q (2014 vs 2012).
| Feature | GeForce GT 640M | GRID K220Q |
|---|---|---|
| MSRP | — | $469 |
| Codename | GK107 | GK104 |
| Release | March 22 2012 | July 2 2014 |
| Ranking | #909 | #907 |
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