Radeon RX 7600 vs GeForce GT 645
Radeon RX 7600
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GeForce GT 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 Radeon RX 7600
Performance Per Dollar GeForce GT 645
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon RX 7600 is significantly newer (2023 vs 2012). The Radeon RX 7600 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GT 645 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon RX 7600 is the superior choice for raw performance. It leads with a 726.6% higher G3D Mark score and 300% more VRAM (8 GB vs 2 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GT 645.
| Insight | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| Performance | ✅Leading raw performance (+726.6%) | ❌Lower raw frame rates (-726.6%) |
| Longevity | 🏆Elite Architecture (RDNA 3.0 (2022−2026) / 6nm) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | ✨ FSR 3 / AFMF Support | Supports FSR Upscaling |
| VRAM | 🎮 High Capacity (8 GB) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GT 645 offers a compelling cost-to-performance ratio. Priced at $15 versus $250 for the Radeon RX 7600, it costs 94% less. While it maintains basic entry-level capabilities, this results in a 101.6% higher cost efficiency score.
| Insight | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+101.6%) |
| Upfront Cost | ⚠️Higher upfront cost ($250) | ✅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 Radeon RX 7600 and GeForce GT 645
Radeon RX 7600
The Radeon RX 7600 is manufactured by AMD. It was released in May 24 2023. It features the RDNA 3.0 architecture. The core clock ranges from 1720 MHz to 2655 MHz. It has 2048 shading units. The thermal design power (TDP) is 165W. Manufactured using 6 nm process technology. It features 32 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 16,581 points. Launch price was $269.
GeForce GT 645
The GeForce GT 645 is manufactured by NVIDIA. It was released in October 1 2012. It features the Kepler architecture. The core clock speed is Up to 710 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,006 points.
Graphics Performance
In G3D Mark, the Radeon RX 7600 scores 16,581 versus the GeForce GT 645's 2,006 — the Radeon RX 7600 leads by 726.6%. The Radeon RX 7600 is built on RDNA 3.0 while the GeForce GT 645 uses Kepler, both on 6 nm vs 28 nm. Shader units: 2,048 (Radeon RX 7600) vs 384 (GeForce GT 645). Raw compute: 21.75 TFLOPS (Radeon RX 7600) vs 0.5445 TFLOPS (GeForce GT 645).
| Feature | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| G3D Mark Score | 16,581+727% | 2,006 |
| Architecture | RDNA 3.0 | Kepler |
| Process Node | 6 nm | 28 nm |
| Shading Units | 2048+433% | 384 |
| Compute (TFLOPS) | 21.75 TFLOPS+3894% | 0.5445 TFLOPS |
| ROPs | 64+300% | 16 |
| TMUs | 128+300% | 32 |
| L1 Cache | 512 KB+1500% | 32 KB |
| L2 Cache | 2 MB+700% | 0.25 MB |
Advanced Features (DLSS/FSR)
A critical advantage for the Radeon RX 7600 is support for FSR 3 / AFMF. 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 GT 645 lacks specific hardware/driver support for this native frame generation tier.
| Feature | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| Upscaling Tech | FSR 3 (Native) | FSR 1.0 (Software) |
| Frame Generation | FSR 3 / AFMF (Driver) | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
The Radeon RX 7600 comes with 8 GB of VRAM, while the GeForce GT 645 has 2 GB. The Radeon RX 7600 offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 2 MB (Radeon RX 7600) vs 0.25 MB (GeForce GT 645) — the Radeon RX 7600 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| VRAM Capacity | 8 GB+300% | 2 GB |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bandwidth | 288 GB/s | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 2 MB+700% | 0.25 MB |
Display & API Support
DirectX support: 12.2 (Radeon RX 7600) vs 12 (11_0) (GeForce GT 645). Vulkan: 1.3 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 3.
| Feature | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| DirectX | 12.2+2% | 12 (11_0) |
| Vulkan | 1.3+8% | 1.2 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4+33% | 3 |
Media & Encoding
Hardware encoder: VCN 4.0 (Radeon RX 7600) vs NVENC (1st Gen) (GeForce GT 645). Decoder: VCN 4.0 vs NVDEC (1st Gen). Supported codecs: MPEG-2,H.264,HEVC,VP9,AV1 (Radeon RX 7600) vs H.264,MPEG-2,VC-1 (GeForce GT 645).
| Feature | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| Encoder | VCN 4.0 | NVENC (1st Gen) |
| Decoder | VCN 4.0 | NVDEC (1st Gen) |
| Codecs | MPEG-2,H.264,HEVC,VP9,AV1 | H.264,MPEG-2,VC-1 |
Power & Dimensions
The Radeon RX 7600 draws 165W versus the GeForce GT 645's 32W — a 135% difference. The GeForce GT 645 is more power-efficient. Recommended PSU: 550W (Radeon RX 7600) vs 350W (GeForce GT 645). Power connectors: 8-pin vs PCIe-powered. Card length: 240mm vs 145mm, occupying 2 vs 1 slots. Typical load temperature: 75°C vs 80.
| Feature | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| TDP | 165W | 32W-81% |
| Recommended PSU | 550W | 350W-36% |
| Power Connector | 8-pin | PCIe-powered |
| Length | 240mm | 145mm |
| Height | 111mm | 111mm |
| Slots | 2 | 1-50% |
| Temp (Load) | 75°C-6% | 80 |
| Perf/Watt | 100.5+60% | 62.7 |
Value Analysis
The Radeon RX 7600 launched at $269 MSRP and currently averages $250, while the GeForce GT 645 launched at $99 and now averages $15. The GeForce GT 645 costs 94% less ($235 savings) at current market prices. Performance per dollar (G3D Mark / price): 66.3 (Radeon RX 7600) vs 133.7 (GeForce GT 645) — the GeForce GT 645 offers 101.7% better value. The Radeon RX 7600 is the newer GPU (2023 vs 2012).
| Feature | Radeon RX 7600 | GeForce GT 645 |
|---|---|---|
| MSRP | $269 | $99-63% |
| Avg Price (30d) | $250 | $15-94% |
| Performance per Dollar | 66.3 | 133.7+102% |
| Codename | Navi 33 | GK107 |
| Release | May 24 2023 | October 1 2012 |
| Ranking | #118 | #903 |
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