GeForce GT 640 Rev. 2 vs Radeon RX 7600
GeForce GT 640 Rev. 2
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Radeon RX 7600
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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 GeForce GT 640 Rev. 2 is positioned at rank #109 in our cost-efficiency ranking, representing a Balanced 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 GeForce GT 640 Rev. 2
Performance Per Dollar Radeon RX 7600
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon RX 7600 is significantly newer (2023 vs 2013). 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 640 Rev. 2 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 1319.6% higher G3D Mark score and 1500% more VRAM (8 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GT 640 Rev. 2.
| Insight | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1319.6%) | ✅Leading raw performance (+1319.6%) |
| Longevity | 🛑Obsolete Architecture (2013 / Kepler 2.0 (2013−2015)) | 🏆Elite Architecture (RDNA 3.0 (2022−2026) / 6nm) |
| Ecosystem | Supports FSR Upscaling | ✨ FSR 3 / AFMF Support |
| VRAM | ❌ Less VRAM capacity | 🎮 High Capacity (8 GB) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The Radeon RX 7600 offers a compelling cost-to-performance ratio. Although it costs $250 (vs $99), its significant performance lead justifies the premium, offering 462.2% better value per dollar than the GeForce GT 640 Rev. 2.
| Insight | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+462.2%) |
| Upfront Cost | ✅More affordable ($99) | ⚠️Higher upfront cost ($250) |
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 GT 640 Rev. 2 and Radeon RX 7600
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.
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.
Graphics Performance
In G3D Mark, the GeForce GT 640 Rev. 2 scores 1,168 versus the Radeon RX 7600's 16,581 — the Radeon RX 7600 leads by 1319.6%. The GeForce GT 640 Rev. 2 is built on Kepler 2.0 while the Radeon RX 7600 uses RDNA 3.0, both on 28 nm vs 6 nm. Shader units: 384 (GeForce GT 640 Rev. 2) vs 2,048 (Radeon RX 7600). Raw compute: 0.8033 TFLOPS (GeForce GT 640 Rev. 2) vs 21.75 TFLOPS (Radeon RX 7600).
| Feature | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| G3D Mark Score | 1,168 | 16,581+1320% |
| Architecture | Kepler 2.0 | RDNA 3.0 |
| Process Node | 28 nm | 6 nm |
| Shading Units | 384 | 2048+433% |
| Compute (TFLOPS) | 0.8033 TFLOPS | 21.75 TFLOPS+2608% |
| ROPs | 8 | 64+700% |
| TMUs | 32 | 128+300% |
| L1 Cache | 32 KB | 512 KB+1500% |
| L2 Cache | 0.13 MB | 2 MB+1438% |
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 640 Rev. 2 lacks specific hardware/driver support for this native frame generation tier.
| Feature | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 3 (Native) |
| Frame Generation | Not Supported | FSR 3 / AFMF (Driver) |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce GT 640 Rev. 2 comes with 512 MB of VRAM, while the Radeon RX 7600 has 8 GB. The Radeon RX 7600 offers 1500% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 0.13 MB (GeForce GT 640 Rev. 2) vs 2 MB (Radeon RX 7600) — the Radeon RX 7600 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 8 GB+1500% |
| Memory Type | GDDR5 | GDDR6 |
| Memory Bandwidth | Unknown | 288 GB/s |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 0.13 MB | 2 MB+1438% |
Display & API Support
DirectX support: 12 (11_0) (GeForce GT 640 Rev. 2) vs 12.2 (Radeon RX 7600). Vulkan: 1.2 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 3 vs 4.
| Feature | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| DirectX | 12 (11_0) | 12.2+2% |
| Vulkan | 1.2 | 1.3+8% |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 3 | 4+33% |
Media & Encoding
Hardware encoder: NVENC (Kepler) (GeForce GT 640 Rev. 2) vs VCN 4.0 (Radeon RX 7600). Decoder: PureVideo HD 5 vs VCN 4.0. Supported codecs: H.264,MPEG-2,VC-1 (GeForce GT 640 Rev. 2) vs MPEG-2,H.264,HEVC,VP9,AV1 (Radeon RX 7600).
| Feature | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| Encoder | NVENC (Kepler) | VCN 4.0 |
| Decoder | PureVideo HD 5 | VCN 4.0 |
| Codecs | H.264,MPEG-2,VC-1 | MPEG-2,H.264,HEVC,VP9,AV1 |
Power & Dimensions
The GeForce GT 640 Rev. 2 draws 49W versus the Radeon RX 7600's 165W — a 108.4% difference. The GeForce GT 640 Rev. 2 is more power-efficient. Recommended PSU: 300W (GeForce GT 640 Rev. 2) vs 550W (Radeon RX 7600). Power connectors: None vs 8-pin. Card length: 145mm vs 240mm, occupying 1 vs 2 slots. Typical load temperature: 65 vs 75°C.
| Feature | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| TDP | 49W-70% | 165W |
| Recommended PSU | 300W-45% | 550W |
| Power Connector | None | 8-pin |
| Length | 145mm | 240mm |
| Height | 111mm | 111mm |
| Slots | 1-50% | 2 |
| Temp (Load) | 65-13% | 75°C |
| Perf/Watt | 23.8 | 100.5+322% |
Value Analysis
The GeForce GT 640 Rev. 2 launched at $99 MSRP and currently averages $99, while the Radeon RX 7600 launched at $269 and now averages $250. The GeForce GT 640 Rev. 2 costs 60.4% less ($151 savings) at current market prices. Performance per dollar (G3D Mark / price): 11.8 (GeForce GT 640 Rev. 2) vs 66.3 (Radeon RX 7600) — the Radeon RX 7600 offers 461.9% better value. The Radeon RX 7600 is the newer GPU (2023 vs 2013).
| Feature | GeForce GT 640 Rev. 2 | Radeon RX 7600 |
|---|---|---|
| MSRP | $99-63% | $269 |
| Avg Price (30d) | $99-60% | $250 |
| Performance per Dollar | 11.8 | 66.3+462% |
| Codename | GK208 | Navi 33 |
| Release | May 29 2013 | May 24 2023 |
| Ranking | #786 | #118 |
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