GeForce RTX 4070 vs GeForce GTX 645
GeForce RTX 4070
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GeForce GTX 645
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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. 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 GeForce RTX 4070
Performance Per Dollar
Why is GeForce RTX 4070 better than GeForce GTX 645?
The comparison between the GeForce GTX 645 and the GeForce RTX 4070 Ti SUPER illustrates more than 11 years of monumental GPU development. The GTX 645 was an entry-level OEM card released in 2013, while the RTX 4070 Ti SUPER is a 2024 desktop high-end flagship built on the state-of-the-art Ada Lovelace architecture.\n\nIn terms of raw power, the RTX 4070 Ti SUPER is nearly 40 times more powerful and introduces features that were unavailable on the older budget card, such as dedicated Ray Tracing and AI Frame Generation. The GTX 645 lags behind in every possible metric, struggling to run even simple modern titles while the RTX 4070 Ti SUPER handles them at elite 4K settings with its 16GB of modern VRAM. The 16GB of VRAM on the modern card is also a massive leap over the limited 1GB or 2GB typically found on the older budget chip.\n\nUltimately, the GeForce RTX 4070 Ti SUPER is the definitive choice for any modern high-end user. The GTX 645 is a piece of historical hardware from over a decade ago and cannot compete with the speed or visual fidelity of a modern flagship gaming card. The upgrade represents a night-and-day difference in resolution, system responsiveness, and visual quality.
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The GeForce RTX 4070 is significantly newer (2023 vs 2010). The GeForce RTX 4070 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GTX 645 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The GeForce RTX 4070 is the superior choice for raw performance. It leads with a 1331.9% higher G3D Mark score and 1100% more VRAM (12 GB vs 1 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GTX 645.
| Insight | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| Performance | ✅Leading raw performance (+1331.9%) | ❌Lower raw frame rates (-1331.9%) |
| Longevity | 🏆Elite Architecture (Ada Lovelace (2022−2024) / 5nm) | 🛑Obsolete Architecture (2010 / Fermi (2010−2014)) |
| Ecosystem | ✨ DLSS 3/4 + Frame Gen Support | Supports FSR Upscaling |
| VRAM | 🎮 High Capacity (12 GB) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | Standard Size (304mm) | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GTX 645 offers a compelling cost-to-performance ratio. Priced at $20 versus $550 for the GeForce RTX 4070, it costs 96% less. While it maintains basic entry-level capabilities, this results in a 92.1% higher cost efficiency score.
| Insight | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+92.1%) |
| Upfront Cost | ⚠️Higher upfront cost ($550) | ✅More affordable ($20) |
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 GeForce RTX 4070 and GeForce GTX 645
GeForce RTX 4070
The GeForce RTX 4070 is manufactured by NVIDIA. It was released in April 12 2023. It features the Ada Lovelace architecture. The core clock ranges from 1920 MHz to 2475 MHz. It has 5888 shading units. The thermal design power (TDP) is 200W. Manufactured using 5 nm process technology. It features 46 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 26,919 points. Launch price was $599.
GeForce GTX 645
The GeForce GTX 645 is manufactured by NVIDIA. It was released in May 31 2010. It features the Fermi architecture. The core clock speed is 607 MHz. It has 352 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,880 points. Launch price was $279.
Graphics Performance
In G3D Mark, the GeForce RTX 4070 scores 26,919 versus the GeForce GTX 645's 1,880 — the GeForce RTX 4070 leads by 1331.9%. The GeForce RTX 4070 is built on Ada Lovelace while the GeForce GTX 645 uses Fermi, both on 5 nm vs 40 nm. Shader units: 5,888 (GeForce RTX 4070) vs 352 (GeForce GTX 645). Raw compute: 29.15 TFLOPS (GeForce RTX 4070) vs 0.8554 TFLOPS (GeForce GTX 645).
| Feature | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| G3D Mark Score | 26,919+1332% | 1,880 |
| Architecture | Ada Lovelace | Fermi |
| Process Node | 5 nm | 40 nm |
| Shading Units | 5888+1573% | 352 |
| Compute (TFLOPS) | 29.15 TFLOPS+3308% | 0.8554 TFLOPS |
| ROPs | 64+100% | 32 |
| TMUs | 184+318% | 44 |
| L1 Cache | 5.8 MB+741% | 0.69 MB |
| L2 Cache | 36 MB+7100% | 0.5 MB |
Advanced Features (DLSS/FSR)
A critical advantage for the GeForce RTX 4070 is support for DLSS 3 Frame Gen. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce GTX 645 lacks specific hardware/driver support for this native frame generation tier.The GeForce RTX 4070 gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The GeForce GTX 645 relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.
| Feature | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| Upscaling Tech | DLSS 3.5 | FSR 2.1 (Compatible) |
| Frame Generation | DLSS 3.0 (Native) | FSR 3 (Compatible) |
| Ray Reconstruction | Yes (DLSS 3.5) | No |
| Low Latency | NVIDIA Reflex | Standard |
Video Memory (VRAM)
The GeForce RTX 4070 comes with 12 GB of VRAM, while the GeForce GTX 645 has 1 GB. The GeForce RTX 4070 offers 1100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 192-bit vs 128-bit. L2 Cache: 36 MB (GeForce RTX 4070) vs 0.5 MB (GeForce GTX 645) — the GeForce RTX 4070 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| VRAM Capacity | 12 GB+1100% | 1 GB |
| Memory Type | GDDR6X | GDDR5 |
| Memory Bandwidth | 504 GB/s | Unknown |
| Bus Width | 192-bit+50% | 128-bit |
| L2 Cache | 36 MB+7100% | 0.5 MB |
Display & API Support
DirectX support: 12.2 (GeForce RTX 4070) vs 11.0 (GeForce GTX 645). Vulkan: 1.3 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 3.
| Feature | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| DirectX | 12.2+11% | 11.0 |
| Vulkan | 1.3+8% | 1.2 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4+33% | 3 |
Media & Encoding
Hardware encoder: 8th Gen NVENC (2x) (GeForce RTX 4070) vs NVENC (1st Gen) (GeForce GTX 645). Decoder: 5th Gen NVDEC vs PureVideo VP5. Supported codecs: MPEG-2,H.264,HEVC,VP9,AV1 (GeForce RTX 4070) vs MPEG-2,VC-1,H.264,MPEG-4 (GeForce GTX 645).
| Feature | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| Encoder | 8th Gen NVENC (2x) | NVENC (1st Gen) |
| Decoder | 5th Gen NVDEC | PureVideo VP5 |
| Codecs | MPEG-2,H.264,HEVC,VP9,AV1 | MPEG-2,VC-1,H.264,MPEG-4 |
Power & Dimensions
The GeForce RTX 4070 draws 200W versus the GeForce GTX 645's 200W — a 0% difference. The GeForce GTX 645 is more power-efficient. Recommended PSU: 650W (GeForce RTX 4070) vs 300W (GeForce GTX 645). Power connectors: 8-pin vs None. Card length: 304mm vs 147mm, occupying 3 vs 1 slots. Typical load temperature: 80°C vs 80.
| Feature | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| TDP | 200W | 200W |
| Recommended PSU | 650W | 300W-54% |
| Power Connector | 8-pin | None |
| Length | 304mm | 147mm |
| Height | 137mm | 111mm |
| Slots | 3 | 1-67% |
| Temp (Load) | 80°C | 80 |
| Perf/Watt | 134.6+1332% | 9.4 |
Value Analysis
The GeForce RTX 4070 launched at $599 MSRP and currently averages $550, while the GeForce GTX 645 launched at $150 and now averages $20. The GeForce GTX 645 costs 96.4% less ($530 savings) at current market prices. Performance per dollar (G3D Mark / price): 48.9 (GeForce RTX 4070) vs 94.0 (GeForce GTX 645) — the GeForce GTX 645 offers 92.2% better value. The GeForce RTX 4070 is the newer GPU (2023 vs 2010).
| Feature | GeForce RTX 4070 | GeForce GTX 645 |
|---|---|---|
| MSRP | $599 | $150-75% |
| Avg Price (30d) | $550 | $20-96% |
| Performance per Dollar | 48.9 | 94.0+92% |
| Codename | AD104 | GF100 |
| Release | April 12 2023 | May 31 2010 |
| Ranking | #32 | #618 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
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