Radeon HD 6770 vs GeForce GT 745A
Radeon HD 6770
Popular choices:
GeForce GT 745A
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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. The Radeon HD 6770 is positioned at rank 127 and the GeForce GT 745A is on rank 334, so the Radeon HD 6770 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 6770
Performance Per Dollar GeForce GT 745A
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 6770 is the superior choice for raw performance. It leads with a 3% higher G3D Mark score and 100% more VRAM (1 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GT 745A.
| Insight | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| Performance | ✅Leading raw performance (+3%) | ❌Lower raw frame rates (-3%) |
| Longevity | 🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015)) | 🛑Obsolete Architecture (2013 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
The GeForce GT 745A offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GT 745A holds the technical lead. Priced at $20 (vs $129), it costs 84% less, resulting in a 526.2% higher cost efficiency score.
| Insight | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+526.2%) |
| Upfront Cost | ⚠️Higher upfront cost ($129) | ✅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 Radeon HD 6770 and GeForce GT 745A
Radeon HD 6770
The Radeon HD 6770 is manufactured by AMD. It was released in January 21 2011. It features the TeraScale 2 architecture. The boost clock speed is 900 MHz. It has 800 shading units. The thermal design power (TDP) is 108W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,271 points. Launch price was $129.
GeForce GT 745A
The GeForce GT 745A is manufactured by NVIDIA. It was released in August 26 2013. It features the Kepler architecture. The core clock ranges from 837 MHz to 915 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,234 points.
Graphics Performance
The Radeon HD 6770 scores 1,271 and the GeForce GT 745A reaches 1,234 in the G3D Mark benchmark — just a 3% difference, making them near-identical in rasterization performance. The Radeon HD 6770 is built on TeraScale 2 while the GeForce GT 745A uses Kepler, both on 40 nm vs 28 nm. Shader units: 800 (Radeon HD 6770) vs 384 (GeForce GT 745A). Raw compute: 1.36 TFLOPS (Radeon HD 6770) vs 0.7027 TFLOPS (GeForce GT 745A). Boost clocks: 900 MHz vs 915 MHz.
| Feature | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| G3D Mark Score | 1,271+3% | 1,234 |
| Architecture | TeraScale 2 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 800+108% | 384 |
| Compute (TFLOPS) | 1.36 TFLOPS+94% | 0.7027 TFLOPS |
| Boost Clock | 900 MHz | 915 MHz+2% |
| ROPs | 16 | 16 |
| TMUs | 40+25% | 32 |
| L1 Cache | 80 KB+150% | 32 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| 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 6770 comes with 1 GB of VRAM, while the GeForce GT 745A has 512 MB. The Radeon HD 6770 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit.
| Feature | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 256 KB | 256 KB |
Display & API Support
DirectX support: 11.2 (11_0) (Radeon HD 6770) vs 12 (11_0) (GeForce GT 745A). Vulkan: N/A vs 1.2. OpenGL: 4.4 vs 4.6. Maximum simultaneous displays: 3 vs 4.
| Feature | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| DirectX | 11.2 (11_0) | 12 (11_0)+7% |
| Vulkan | N/A | 1.2 |
| OpenGL | 4.4 | 4.6+5% |
| Max Displays | 3 | 4+33% |
Media & Encoding
Hardware encoder: None (Radeon HD 6770) vs NVENC (1st Gen) (GeForce GT 745A). Decoder: UVD 2.2 vs PureVideo HD VP5. Supported codecs: H.264,VC-1,MPEG-2 (Radeon HD 6770) vs H.264,VC-1,MPEG-2 (GeForce GT 745A).
| Feature | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| Encoder | None | NVENC (1st Gen) |
| Decoder | UVD 2.2 | PureVideo HD VP5 |
| Codecs | H.264,VC-1,MPEG-2 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The Radeon HD 6770 draws 108W versus the GeForce GT 745A's 33W — a 106.4% difference. The GeForce GT 745A is more power-efficient. Recommended PSU: 450W (Radeon HD 6770) vs 350W (GeForce GT 745A). Power connectors: 1x 6-pin vs PCIe-powered. Typical load temperature: 75 vs 80°C.
| Feature | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| TDP | 108W | 33W-69% |
| Recommended PSU | 450W | 350W-22% |
| Power Connector | 1x 6-pin | PCIe-powered |
| Length | 198mm | — |
| Height | 111mm | — |
| Slots | 2 | 0-100% |
| Temp (Load) | 75-6% | 80°C |
| Perf/Watt | 11.8 | 37.4+217% |
Value Analysis
The Radeon HD 6770 launched at $129 MSRP and currently averages $129, while the GeForce GT 745A launched at $99 and now averages $20. The GeForce GT 745A costs 84.5% less ($109 savings) at current market prices. Performance per dollar (G3D Mark / price): 9.9 (Radeon HD 6770) vs 61.7 (GeForce GT 745A) — the GeForce GT 745A offers 523.2% better value. The GeForce GT 745A is the newer GPU (2013 vs 2011).
| Feature | Radeon HD 6770 | GeForce GT 745A |
|---|---|---|
| MSRP | $129 | $99-23% |
| Avg Price (30d) | $129 | $20-84% |
| Performance per Dollar | 9.9 | 61.7+523% |
| Codename | Juniper | GK107 |
| Release | January 21 2011 | August 26 2013 |
| Ranking | #807 | #811 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
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