Iris Plus Graphics 645
Radeon 540
Iris Plus Graphics 645 vs Radeon 540 Performance Spectrum
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.
Iris Plus Graphics 645 vs Radeon 540 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Iris Plus Graphics 645 vs Radeon 540: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
Iris Plus Graphics 645
2019Why buy it
- ✅Draws 15W instead of 50W, a 35W reduction.
Trade-offs
- ❌Less VRAM, with Unknown vs 512 MB for high-resolution textures and newer games.
- ❌2019 hardware with Unknown of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 14.7 G3D/$ (Unknown MSRP vs $99 MSRP).
Radeon 540
2017Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 14.7 vs 0 G3D/$ ($99 MSRP vs Unknown MSRP).
- ✅100+% more VRAM for high-resolution textures and newer games (512 MB vs Unknown).
- ✅Iris Plus Graphics 645 is already obsolete for modern gaming, so Radeon 540 is the less risky modern option long term.
Trade-offs
- ❌2017 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌233.3% higher power demand at 50W vs 15W.
Quick Answers
Which GPU is faster for gaming right now?
Which GPU is the safer long-term pick for 2026 and beyond?
Which GPU is the better buy today?
Iris Plus Graphics 645 vs Radeon 540 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Iris Plus Graphics 645
The Iris Plus Graphics 645 is manufactured by Intel. It was released in October 7 2019. It features the Generation 9.5 architecture. The core clock ranges from 300 MHz to 1050 MHz. It has 384 shading units. The thermal design power (TDP) is 15W. Manufactured using 14 nm+++ process technology. G3D Mark benchmark score: 1,450 points.
Radeon 540
The Radeon 540 is manufactured by AMD. It was released in April 20 2017. It features the GCN 4.0 architecture. The core clock ranges from 1183 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 1,452 points. Launch price was $79.
Graphics Performance
The Iris Plus Graphics 645 scores 1,450 and the Radeon 540 reaches 1,452 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The Iris Plus Graphics 645 is built on Generation 9.5 while the Radeon 540 uses GCN 4.0, both on 14 nm+++ vs 14 nm. Shader units: 384 (Iris Plus Graphics 645) vs 384 (Radeon 540). Raw compute: 0.8064 TFLOPS (Iris Plus Graphics 645) vs 0.9085 TFLOPS (Radeon 540). Boost clocks: 1050 MHz vs 1124 MHz.
| Feature | Iris Plus Graphics 645 | Radeon 540 |
|---|---|---|
| G3D Mark Score | 1,450 | 1,452 |
| Architecture | Generation 9.5 | GCN 4.0 |
| Process Node | 14 nm+++ | 14 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.8064 TFLOPS | 0.9085 TFLOPS+13% |
| Boost Clock | 1050 MHz | 1124 MHz+7% |
| ROPs | 6 | 16+167% |
| TMUs | 48+100% | 24 |
Advanced Features (DLSS/FSR)
| Feature | Iris Plus Graphics 645 | Radeon 540 |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The Iris Plus Graphics 645 has 0 MB of VRAM, while the Radeon 540 carries 512 MB. Radeon 540 gives you 100+% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is System on the Iris Plus Graphics 645 and 64-bit on the Radeon 540.
| Feature | Iris Plus Graphics 645 | Radeon 540 |
|---|---|---|
| VRAM Capacity | Shared System RAM | 0.5 GB |
| Memory Type | Shared | GDDR5 |
| Bus Width | System | 64-bit |
Power & Dimensions
The Iris Plus Graphics 645 draws 15W versus the Radeon 540's 50W — a 107.7% difference. The Iris Plus Graphics 645 is more power-efficient. Recommended PSU: 1W (Iris Plus Graphics 645) vs 350W (Radeon 540). Power connectors: Integrated vs None.
| Feature | Iris Plus Graphics 645 | Radeon 540 |
|---|---|---|
| TDP | 15W-70% | 50W |
| Recommended PSU | 1W-100% | 350W |
| Power Connector | Integrated | None |
| Perf/Watt | 96.7+233% | 29.0 |
Value Analysis
At launch, the Iris Plus Graphics 645 came in at $0, while the Radeon 540 launched at $99. On MSRP, Iris Plus Graphics 645 was 100+% cheaper ($99 less). Performance per dollar on MSRP (G3D Mark / MSRP): Infinity (Iris Plus Graphics 645) vs 14.7 (Radeon 540) — the Iris Plus Graphics 645 offers Infinity% better value. The newer card here is Iris Plus Graphics 645 (2019 vs 2017).
| Feature | Iris Plus Graphics 645 | Radeon 540 |
|---|---|---|
| MSRP | $0-100% | $99 |
| Performance per Dollar | Infinity | 14.7 |
| Codename | Coffee Lake GT3e | Lexa |
| Release | October 7 2019 | April 20 2017 |
| Ranking | #720 | #773 |
Affiliate Disclosure
ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.
Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
You May Also Compare
Similar GPU comparisons based on Iris Plus Graphics 645 and Radeon 540
