Tesla K20c vs GeForce GTX 660 Ti
Tesla K20c
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GeForce GTX 660 Ti
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Performance Spectrum - GPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. The Tesla K20c is positioned at rank #325 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Tesla K20c
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Tesla K20c is the superior choice for raw performance. It leads with a 0.4% higher G3D Mark score. However, the GeForce GTX 660 Ti offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Tesla K20c | GeForce GTX 660 Ti |
|---|---|---|
| Performance | ✅Leading raw performance (+0.4%) | ❌Lower raw frame rates (-0.4%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+50%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | Standard Size (267mm) | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GTX 660 Ti offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GTX 660 Ti holds the technical lead. Priced at $15 (vs $500), it costs 97% less, resulting in a 3220.5% higher cost efficiency score.
| Insight | Tesla K20c | GeForce GTX 660 Ti |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+3220.5%) |
| Upfront Cost | ⚠️Higher upfront cost ($500) | ✅More affordable ($15) |
Performance Check
Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.
Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.
Technical Specifications
Side-by-side comparison of Tesla K20c and GeForce GTX 660 Ti
Tesla K20c
The Tesla K20c is manufactured by NVIDIA. It was released in November 12 2012. It features the Kepler architecture. The core clock speed is 706 MHz. It has 2496 shading units. The thermal design power (TDP) is 225W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,432 points. Launch price was $3,199.
GeForce GTX 660 Ti
The GeForce GTX 660 Ti is manufactured by NVIDIA. It was released in August 16 2012. It features the Kepler architecture. The core clock ranges from 915 MHz to 980 MHz. It has 1344 shading units. The thermal design power (TDP) is 150W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,415 points. Launch price was $299.
Graphics Performance
The Tesla K20c scores 4,432 and the GeForce GTX 660 Ti reaches 4,415 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The Tesla K20c is built on Kepler while the GeForce GTX 660 Ti uses Kepler, both on a 28 nm process. Shader units: 2,496 (Tesla K20c) vs 1,344 (GeForce GTX 660 Ti). Raw compute: 3.524 TFLOPS (Tesla K20c) vs 2.634 TFLOPS (GeForce GTX 660 Ti).
| Feature | Tesla K20c | GeForce GTX 660 Ti |
|---|---|---|
| G3D Mark Score | 4,432 | 4,415 |
| Architecture | Kepler | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 2496+86% | 1344 |
| Compute (TFLOPS) | 3.524 TFLOPS+34% | 2.634 TFLOPS |
| ROPs | 40+67% | 24 |
| TMUs | 208+86% | 112 |
| L1 Cache | 208 KB+86% | 112 KB |
| L2 Cache | 1.25 MB+229% | 0.38 MB |
Advanced Features (DLSS/FSR)
| Feature | Tesla K20c | GeForce GTX 660 Ti |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 2.1 (Compatible) |
| Frame Generation | Not Supported | FSR 3 (Compatible) |
| Ray Reconstruction | No | No |
| Low Latency | Standard | Standard |
Video Memory (VRAM)
The Tesla K20c comes with 2 GB of VRAM, while the GeForce GTX 660 Ti has 3 GB. The GeForce GTX 660 Ti offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 192-bit. L2 Cache: 1.25 MB (Tesla K20c) vs 0.38 MB (GeForce GTX 660 Ti) — the Tesla K20c has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Tesla K20c | GeForce GTX 660 Ti |
|---|---|---|
| VRAM Capacity | 2 GB | 3 GB+50% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 192-bit+200% |
| L2 Cache | 1.25 MB+229% | 0.38 MB |
Display & API Support
DirectX support: 11_0 (Tesla K20c) vs 12 (FL 11_0) (GeForce GTX 660 Ti). Maximum simultaneous displays: 0 vs 4.
| Feature | Tesla K20c | GeForce GTX 660 Ti |
|---|---|---|
| DirectX | 11_0 | 12 (FL 11_0)+9% |
| Max Displays | 0 | 4 |
Power & Dimensions
The Tesla K20c draws 225W versus the GeForce GTX 660 Ti's 150W — a 40% difference. The GeForce GTX 660 Ti is more power-efficient. Recommended PSU: 350W (Tesla K20c) vs 450W (GeForce GTX 660 Ti). Power connectors: PCIe-powered vs 2x 6-pin. Card length: 267mm vs 241mm, occupying 2 vs 2 slots.
| Feature | Tesla K20c | GeForce GTX 660 Ti |
|---|---|---|
| TDP | 225W | 150W-33% |
| Recommended PSU | 350W-22% | 450W |
| Power Connector | PCIe-powered | 2x 6-pin |
| Length | 267mm | 241mm |
| Height | — | 111mm |
| Slots | 2 | 2 |
| Temp (Load) | — | 97°C |
| Perf/Watt | 19.7 | 29.4+49% |
Value Analysis
The Tesla K20c launched at $3199 MSRP and currently averages $500, while the GeForce GTX 660 Ti launched at $299 and now averages $15. The GeForce GTX 660 Ti costs 97% less ($485 savings) at current market prices. Performance per dollar (G3D Mark / price): 8.9 (Tesla K20c) vs 294.3 (GeForce GTX 660 Ti) — the GeForce GTX 660 Ti offers 3206.7% better value.
| Feature | Tesla K20c | GeForce GTX 660 Ti |
|---|---|---|
| MSRP | $3199 | $299-91% |
| Avg Price (30d) | $500 | $15-97% |
| Performance per Dollar | 8.9 | 294.3+3207% |
| Codename | GK110 | GK104 |
| Release | November 12 2012 | August 16 2012 |
| Ranking | #549 | #472 |
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