GeForce GT 640 Rev. 2
NVS 810
GeForce GT 640 Rev. 2 vs NVS 810 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 640 Rev. 2 vs NVS 810 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 640 Rev. 2 vs NVS 810: 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 640 Rev. 2
2013Why buy it
- ✅Costs $601 less on MSRP ($99 MSRP vs $700 MSRP).
- ✅Delivers 592.8% more G3D Mark for each dollar spent, at 11.8 vs 1.7 G3D/$ ($99 MSRP vs $700 MSRP).
- ✅Draws 49W instead of 68W, a 19W reduction.
- ✅Measures 145mm instead of 198mm, a 53mm shorter card that is more SFF-friendly.
Trade-offs
- ❌Less VRAM, with 512 MB vs 4 GB for high-resolution textures and newer games.
- ❌2013 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
NVS 810
2015Why buy it
- ✅700% more VRAM for high-resolution textures and newer games (4 GB vs 512 MB).
- ✅More future proof: Maxwell (2014−2017) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌2015 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌607.1% HIGHER MSRP$700 MSRPvs$99 MSRP
- ❌Lower G3D Mark per dollar, at 1.7 vs 11.8 G3D/$ ($700 MSRP vs $99 MSRP).
- ❌38.8% higher power demand at 68W vs 49W.
- ❌36.6% longer card at 198mm vs 145mm.
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GeForce GT 640 Rev. 2 vs NVS 810 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
GeForce GT 640 Rev. 2
The GeForce GT 640 Rev. 2 is manufactured by NVIDIA. It was released in May 29 2013. It features the Kepler 2.0 architecture. The core clock speed is 1046 MHz. It has 384 shading units. The thermal design power (TDP) is 49W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,168 points. Launch price was $89.
NVS 810
The NVS 810 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: 1,192 points.
Graphics Performance
The GeForce GT 640 Rev. 2 scores 1,168 and the NVS 810 reaches 1,192 in the G3D Mark benchmark — just a 2.1% difference, making them near-identical in rasterization performance. The GeForce GT 640 Rev. 2 is built on Kepler 2.0 while the NVS 810 uses Maxwell, both on a 28 nm process. Shader units: 384 (GeForce GT 640 Rev. 2) vs 512 (NVS 810). Raw compute: 0.8033 TFLOPS (GeForce GT 640 Rev. 2) vs 1.058 TFLOPS ×2 (NVS 810).
| Feature | GeForce GT 640 Rev. 2 | NVS 810 |
|---|---|---|
| G3D Mark Score | 1,168 | 1,192+2% |
| Architecture | Kepler 2.0 | Maxwell |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 512 ×2+33% |
| Compute (TFLOPS) | 0.8033 TFLOPS | 1.058 TFLOPS ×2+32% |
| ROPs | 8 | 16 ×2+100% |
| TMUs | 32 | 32 ×2 |
| L1 Cache | 32 KB | 256 KB+700% |
| L2 Cache | 0.13 MB | 1 MB+669% |
Advanced Features (DLSS/FSR)
The GeForce GT 640 Rev. 2 gets NVIDIA DLSS, which still tends to look cleaner in motion. The NVS 810 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GT 640 Rev. 2 | NVS 810 |
|---|---|---|
| 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 640 Rev. 2 has 512 MB of VRAM, while the NVS 810 carries 4 GB. NVS 810 gives you 700% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the GeForce GT 640 Rev. 2 and 64-bit on the NVS 810. L2 Cache: 0.13 MB (GeForce GT 640 Rev. 2) vs 1 MB (NVS 810) — the NVS 810 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 640 Rev. 2 | NVS 810 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 4 GB+700% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 64-bit |
| L2 Cache | 0.13 MB | 1 MB+669% |
Display & API Support
DirectX support: 12 (11_0) (GeForce GT 640 Rev. 2) vs 12 (12_1) (NVS 810). Vulkan: 1.2 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 3 vs 8.
| Feature | GeForce GT 640 Rev. 2 | NVS 810 |
|---|---|---|
| DirectX | 12 (11_0) | 12 (12_1) |
| Vulkan | 1.2 | 1.3+8% |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 3 | 8+167% |
Media & Encoding
Hardware encoder: NVENC (Kepler) (GeForce GT 640 Rev. 2) vs NVENC 5 (NVS 810). Decoder: PureVideo HD 5 vs NVDEC 2. Supported codecs: H.264,MPEG-2,VC-1 (GeForce GT 640 Rev. 2) vs H.264,H.265 (NVS 810).
| Feature | GeForce GT 640 Rev. 2 | NVS 810 |
|---|---|---|
| Encoder | NVENC (Kepler) | NVENC 5 |
| Decoder | PureVideo HD 5 | NVDEC 2 |
| Codecs | H.264,MPEG-2,VC-1 | H.264,H.265 |
Power & Dimensions
The GeForce GT 640 Rev. 2 draws 49W versus the NVS 810's 68W — a 32.5% difference. The GeForce GT 640 Rev. 2 is more power-efficient. Recommended PSU: 300W (GeForce GT 640 Rev. 2) vs 350W (NVS 810). Power connectors: None vs PCIe-powered. Card length: 145mm vs 198mm, occupying 1 vs 1 slots. Typical load temperature: 65 vs 80°C.
| Feature | GeForce GT 640 Rev. 2 | NVS 810 |
|---|---|---|
| TDP | 49W-28% | 68W |
| Recommended PSU | 300W-14% | 350W |
| Power Connector | None | PCIe-powered |
| Length | 145mm | 198mm |
| Height | 111mm | 111mm |
| Slots | 1 | 1 |
| Temp (Load) | 65-19% | 80°C |
| Perf/Watt | 23.8+36% | 17.5 |
Value Analysis
At launch, the GeForce GT 640 Rev. 2 came in at $99, while the NVS 810 launched at $700. On MSRP, GeForce GT 640 Rev. 2 was 85.9% cheaper ($601 less). Performance per dollar on MSRP (G3D Mark / MSRP): 11.8 (GeForce GT 640 Rev. 2) vs 1.7 (NVS 810) — the GeForce GT 640 Rev. 2 offers 594.1% better value. The newer card here is NVS 810 (2015 vs 2013).
| Feature | GeForce GT 640 Rev. 2 | NVS 810 |
|---|---|---|
| MSRP | $99-86% | $700 |
| Performance per Dollar | 11.8+594% | 1.7 |
| Codename | GK208 | GM107 |
| Release | May 29 2013 | November 4 2015 |
| Ranking | #786 | #826 |
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