GeForce GT 645 vs Iris Xe Graphics MAX
GeForce GT 645
Popular choices:
Iris Xe Graphics MAX
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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 645 is positioned at rank #242 in our cost-efficiency ranking, representing a Lower 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 645
Performance Per Dollar Iris Xe Graphics MAX
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Iris Xe Graphics MAX is significantly newer (2020 vs 2012). The Iris Xe Graphics MAX 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 GeForce GT 645 is the superior choice for raw performance. It leads with a 1.7% higher G3D Mark score and 100+% more VRAM (2 GB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Iris Xe Graphics MAX.
| Insight | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| Performance | ✅Leading raw performance (+1.7%) | ❌Lower raw frame rates (-1.7%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | Generation 12.1 (2020−2021) (10nm) |
| 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 645 offers a compelling cost-to-performance ratio. Priced at $15 versus $40 for the Iris Xe Graphics MAX, it costs 63% less. While it maintains basic entry-level capabilities, this results in a 171.3% higher cost efficiency score.
| Insight | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+171.3%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($15) | ⚠️Higher upfront cost ($40) |
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 645 and Iris Xe Graphics MAX
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.
Iris Xe Graphics MAX
The Iris Xe Graphics MAX is manufactured by Intel. It was released in October 31 2020. It features the Generation 12.1 architecture. The boost clock speed is 1650 MHz. It has 768 shading units. The thermal design power (TDP) is 25W. Manufactured using 10 nm process technology. G3D Mark benchmark score: 1,972 points.
Graphics Performance
The GeForce GT 645 scores 2,006 and the Iris Xe Graphics MAX reaches 1,972 in the G3D Mark benchmark — just a 1.7% difference, making them near-identical in rasterization performance. The GeForce GT 645 is built on Kepler while the Iris Xe Graphics MAX uses Generation 12.1, both on 28 nm vs 10 nm. Shader units: 384 (GeForce GT 645) vs 768 (Iris Xe Graphics MAX). Raw compute: 0.5445 TFLOPS (GeForce GT 645) vs 2.534 TFLOPS (Iris Xe Graphics MAX).
| Feature | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| G3D Mark Score | 2,006+2% | 1,972 |
| Architecture | Kepler | Generation 12.1 |
| Process Node | 28 nm | 10 nm |
| Shading Units | 384 | 768+100% |
| Compute (TFLOPS) | 0.5445 TFLOPS | 2.534 TFLOPS+365% |
| ROPs | 16 | 24+50% |
| TMUs | 32 | 48+50% |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | Standard |
Video Memory (VRAM)
The GeForce GT 645 comes with 2 GB of VRAM, while the Iris Xe Graphics MAX has 0 MB. The GeForce GT 645 offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs System.
| Feature | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| VRAM Capacity | 2 GB | Shared System RAM |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 128-bit | System |
Display & API Support
DirectX support: 12 (11_0) (GeForce GT 645) vs 12.1 (Iris Xe Graphics MAX). Vulkan: 1.2 vs 1.0. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 3 vs 4.
| Feature | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| DirectX | 12 (11_0) | 12.1 |
| Vulkan | 1.2+20% | 1.0 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 3 | 4+33% |
Media & Encoding
Hardware encoder: NVENC (1st Gen) (GeForce GT 645) vs QuickSync (Iris Xe Graphics MAX). Decoder: NVDEC (1st Gen) vs QuickSync. Supported codecs: H.264,MPEG-2,VC-1 (GeForce GT 645) vs H.264,HEVC,AV1 (Iris Xe Graphics MAX).
| Feature | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| Encoder | NVENC (1st Gen) | QuickSync |
| Decoder | NVDEC (1st Gen) | QuickSync |
| Codecs | H.264,MPEG-2,VC-1 | H.264,HEVC,AV1 |
Power & Dimensions
The GeForce GT 645 draws 32W versus the Iris Xe Graphics MAX's 25W — a 24.6% difference. The Iris Xe Graphics MAX is more power-efficient. Recommended PSU: 350W (GeForce GT 645) vs 1W (Iris Xe Graphics MAX). Power connectors: PCIe-powered vs Integrated. Typical load temperature: 80 vs 85°C.
| Feature | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| TDP | 32W | 25W-22% |
| Recommended PSU | 350W | 1W-100% |
| Power Connector | PCIe-powered | Integrated |
| Length | 145mm | — |
| Height | 111mm | — |
| Slots | 1 | — |
| Temp (Load) | 80-6% | 85°C |
| Perf/Watt | 62.7 | 78.9+26% |
Value Analysis
The GeForce GT 645 launched at $99 MSRP and currently averages $15, while the Iris Xe Graphics MAX launched at $55 and now averages $40. The GeForce GT 645 costs 62.5% less ($25 savings) at current market prices. Performance per dollar (G3D Mark / price): 133.7 (GeForce GT 645) vs 49.3 (Iris Xe Graphics MAX) — the GeForce GT 645 offers 171.2% better value. The Iris Xe Graphics MAX is the newer GPU (2020 vs 2012).
| Feature | GeForce GT 645 | Iris Xe Graphics MAX |
|---|---|---|
| MSRP | $99 | $55-44% |
| Avg Price (30d) | $15-63% | $40 |
| Performance per Dollar | 133.7+171% | 49.3 |
| Codename | GK107 | DG1 |
| Release | October 1 2012 | October 31 2020 |
| Ranking | #903 | #685 |
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