
Iris Plus Graphics G7 (Ice Lake 64 EU) vs GeForce GT 645

Iris Plus Graphics G7 (Ice Lake 64 EU)
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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
Performance Per Dollar GeForce GT 645
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Iris Plus Graphics G7 (Ice Lake 64 EU) is significantly newer (2019 vs 2012). The Iris Plus Graphics G7 (Ice Lake 64 EU) 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 0.3% 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 Plus Graphics G7 (Ice Lake 64 EU).
| Insight | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.3%) | ✅Leading raw performance (+0.3%) |
| Longevity | Gen. 11 Ice Lake (2019−2022) (10nm) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+100+%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
The GeForce GT 645 offers a compelling cost-to-performance ratio. Although it costs $15 (vs $15), its significant performance lead justifies the premium, offering 0.3% better value per dollar than the Iris Plus Graphics G7 (Ice Lake 64 EU).
| Insight | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+0.3%) |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Iris Plus Graphics G7 (Ice Lake 64 EU) and GeForce GT 645

Iris Plus Graphics G7 (Ice Lake 64 EU)
The Iris Plus Graphics G7 (Ice Lake 64 EU) is manufactured by Intel. It was released in May 28 2019. It features the Gen. 11 Ice Lake architecture. The core clock ranges from 300 MHz to 1100 MHz. It has 64 shading units. The thermal design power (TDP) is 12W. Manufactured using 10 nm process technology. G3D Mark benchmark score: 2,000 points.

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
The Iris Plus Graphics G7 (Ice Lake 64 EU) scores 2,000 and the GeForce GT 645 reaches 2,006 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The Iris Plus Graphics G7 (Ice Lake 64 EU) is built on Gen. 11 Ice Lake while the GeForce GT 645 uses Kepler, both on 10 nm vs 28 nm. Shader units: 64 (Iris Plus Graphics G7 (Ice Lake 64 EU)) vs 384 (GeForce GT 645).
| Feature | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| G3D Mark Score | 2,000 | 2,006 |
| Architecture | Gen. 11 Ice Lake | Kepler |
| Process Node | 10 nm | 28 nm |
| Shading Units | 64 | 384+500% |
Advanced Features (DLSS/FSR)
| Feature | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| 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 Iris Plus Graphics G7 (Ice Lake 64 EU) comes with 0 MB of VRAM, while the GeForce GT 645 has 2 GB. The GeForce GT 645 offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 128-bit.
| Feature | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| VRAM Capacity | Shared System RAM | 2 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 128-bit |
Display & API Support
DirectX support: 12 (12_1) (Iris Plus Graphics G7 (Ice Lake 64 EU)) vs 12 (11_0) (GeForce GT 645). Vulkan: 1.3 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 3 vs 3.
| Feature | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| DirectX | 12 (12_1) | 12 (11_0) |
| Vulkan | 1.3+8% | 1.2 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 3 | 3 |
Media & Encoding
Hardware encoder: QuickSync (Iris Plus Graphics G7 (Ice Lake 64 EU)) vs NVENC (1st Gen) (GeForce GT 645). Decoder: QuickSync vs NVDEC (1st Gen). Supported codecs: H.264,H.265,VP9 (Iris Plus Graphics G7 (Ice Lake 64 EU)) vs H.264,MPEG-2,VC-1 (GeForce GT 645).
| Feature | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| Encoder | QuickSync | NVENC (1st Gen) |
| Decoder | QuickSync | NVDEC (1st Gen) |
| Codecs | H.264,H.265,VP9 | H.264,MPEG-2,VC-1 |
Power & Dimensions
The Iris Plus Graphics G7 (Ice Lake 64 EU) draws 12W versus the GeForce GT 645's 32W — a 90.9% difference. The Iris Plus Graphics G7 (Ice Lake 64 EU) is more power-efficient. Recommended PSU: 1W (Iris Plus Graphics G7 (Ice Lake 64 EU)) vs 350W (GeForce GT 645). Power connectors: Integrated vs PCIe-powered. Card length: 0mm vs 145mm, occupying 0 vs 1 slots. Typical load temperature: 85 vs 80.
| Feature | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| TDP | 12W-63% | 32W |
| Recommended PSU | 1W-100% | 350W |
| Power Connector | Integrated | PCIe-powered |
| Length | 0mm | 145mm |
| Height | 0mm | 111mm |
| Slots | 0-100% | 1 |
| Temp (Load) | 85 | 80-6% |
| Perf/Watt | 166.7+166% | 62.7 |
Value Analysis
The Iris Plus Graphics G7 (Ice Lake 64 EU) launched at $0 MSRP and currently averages $15, while the GeForce GT 645 launched at $99 and now averages $15. Performance per dollar (G3D Mark / price): 133.3 (Iris Plus Graphics G7 (Ice Lake 64 EU)) vs 133.7 (GeForce GT 645) — the GeForce GT 645 offers 0.3% better value. The Iris Plus Graphics G7 (Ice Lake 64 EU) is the newer GPU (2019 vs 2012).
| Feature | Iris Plus Graphics G7 (Ice Lake 64 EU) | GeForce GT 645 |
|---|---|---|
| MSRP | $0-100% | $99 |
| Avg Price (30d) | $15 | $15 |
| Performance per Dollar | 133.3 | 133.7 |
| Codename | Ice Lake G7 Gen. 11 | GK107 |
| Release | May 28 2019 | October 1 2012 |
| Ranking | #672 | #903 |
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