CPU
GPU
Radeon HD 4650
Popular choices:
GeForce 7800 GT
Popular choices:
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. The Radeon HD 4650 is positioned at rank 275 and the GeForce 7800 GT is on rank 349, so the Radeon HD 4650 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD 4650
Performance Per Dollar GeForce 7800 GT
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 4650 is the superior choice for raw performance. It leads with a 1.6% higher G3D Mark score and 300% more VRAM (1 GB vs 256 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce 7800 GT.
| Insight | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| Performance | ✅Leading raw performance (+1.6%) | ❌Lower raw frame rates (-1.6%) |
| Longevity | 🛑Obsolete Architecture (2010 / TeraScale 3 (2010−2013)) | 🛑Obsolete Architecture (2013 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+300%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The Radeon HD 4650 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 4650 holds the technical lead. Priced at $15 (vs $20), it costs 25% less, resulting in a 35.5% higher cost efficiency score.
| Insight | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+35.5%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($15) | ⚠️Higher upfront cost ($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 Radeon HD 4650 and GeForce 7800 GT
Radeon HD 4650
The Radeon HD 4650 is manufactured by AMD. It was released in December 14 2010. It features the TeraScale 3 architecture. The boost clock speed is 800 MHz. It has 1408 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 248 points. Launch price was $299.
GeForce 7800 GT
The GeForce 7800 GT is manufactured by NVIDIA. It was released in November 7 2013. It features the Kepler architecture. The core clock ranges from 875 MHz to 928 MHz. It has 2880 shading units. The thermal design power (TDP) is 250W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 244 points. Launch price was $699.
Graphics Performance
The Radeon HD 4650 scores 248 and the GeForce 7800 GT reaches 244 in the G3D Mark benchmark — just a 1.6% difference, making them near-identical in rasterization performance. The Radeon HD 4650 is built on TeraScale 3 while the GeForce 7800 GT uses Kepler, both on 40 nm vs 28 nm. Shader units: 1,408 (Radeon HD 4650) vs 2,880 (GeForce 7800 GT). Raw compute: 2.253 TFLOPS (Radeon HD 4650) vs 5.345 TFLOPS (GeForce 7800 GT). Boost clocks: 800 MHz vs 928 MHz.
| Feature | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| G3D Mark Score | 248+2% | 244 |
| Architecture | TeraScale 3 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 1408 | 2880+105% |
| Compute (TFLOPS) | 2.253 TFLOPS | 5.345 TFLOPS+137% |
| Boost Clock | 800 MHz | 928 MHz+16% |
| ROPs | 32 | 48+50% |
| TMUs | 88 | 240+173% |
| L1 Cache | 352 KB+47% | 240 KB |
| L2 Cache | 0.5 MB | 1.5 MB+200% |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
The Radeon HD 4650 comes with 1 GB of VRAM, while the GeForce 7800 GT has 256 MB. The Radeon HD 4650 offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 0.5 MB (Radeon HD 4650) vs 1.5 MB (GeForce 7800 GT) — the GeForce 7800 GT has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| VRAM Capacity | 1 GB+300% | 0.25 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 0.5 MB | 1.5 MB+200% |
Display & API Support
DirectX support: 10.1 (Radeon HD 4650) vs 9.0c (GeForce 7800 GT). Maximum simultaneous displays: 2 vs 2.
| Feature | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| DirectX | 10.1+12% | 9.0c |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: UVD 2 (Radeon HD 4650) vs No (GeForce 7800 GT). Decoder: UVD 2 vs PureVideo.
| Feature | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| Encoder | UVD 2 | No |
| Decoder | UVD 2 | PureVideo |
| Codecs | — | MPEG-2 |
Power & Dimensions
The Radeon HD 4650 draws 200W versus the GeForce 7800 GT's 250W — a 22.2% difference. The Radeon HD 4650 is more power-efficient. Recommended PSU: 350W (Radeon HD 4650) vs 350W (GeForce 7800 GT). Power connectors: 1x 6-pin vs Legacy. Card length: 168mm vs 228mm, occupying 1 vs 1 slots.
| Feature | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| TDP | 200W-20% | 250W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | Legacy |
| Length | 168mm | 228mm |
| Height | — | 111mm |
| Slots | 1 | 1 |
| Temp (Load) | — | 85°C |
| Perf/Watt | 1.2+20% | 1.0 |
Value Analysis
The Radeon HD 4650 launched at $70 MSRP and currently averages $15, while the GeForce 7800 GT launched at $449 and now averages $20. The Radeon HD 4650 costs 25% less ($5 savings) at current market prices. Performance per dollar (G3D Mark / price): 16.5 (Radeon HD 4650) vs 12.2 (GeForce 7800 GT) — the Radeon HD 4650 offers 35.2% better value. The GeForce 7800 GT is the newer GPU (2013 vs 2010).
| Feature | Radeon HD 4650 | GeForce 7800 GT |
|---|---|---|
| MSRP | $70-84% | $449 |
| Avg Price (30d) | $15-25% | $20 |
| Performance per Dollar | 16.5+35% | 12.2 |
| Codename | Cayman | GK110B |
| Release | December 14 2010 | November 7 2013 |
| Ranking | #623 | #278 |
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