GeForce GT 740
Iris Plus Graphics 645
GeForce GT 740 vs Iris Plus Graphics 645 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.
GeForce GT 740 vs Iris Plus Graphics 645 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
GeForce GT 740 vs Iris Plus Graphics 645: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce GT 740
2014Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 16.1 vs 0 G3D/$ ($89 MSRP vs Unknown MSRP).
- ✅100+% more VRAM for high-resolution textures and newer games (1 GB vs Unknown).
- ✅Iris Plus Graphics 645 is already obsolete for modern gaming, so GeForce GT 740 is the less risky modern option long term.
Trade-offs
- ❌2014 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌326.7% higher power demand at 64W vs 15W.
Iris Plus Graphics 645
2019Why buy it
- ✅Draws 15W instead of 64W, a 49W reduction.
- ✅More future proof: Generation 9.5 (2016−2020) on 14nm with a newer platform for upcoming games.
Trade-offs
- ❌Less VRAM, with Unknown vs 1 GB for high-resolution textures and newer games.
- ❌2019 hardware with Unknown of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 16.1 G3D/$ (Unknown MSRP vs $89 MSRP).
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GeForce GT 740 vs Iris Plus Graphics 645 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
GeForce GT 740
The GeForce GT 740 is manufactured by NVIDIA. It was released in May 29 2014. It features the Kepler architecture. The core clock speed is 993 MHz. It has 384 shading units. The thermal design power (TDP) is 64W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,429 points. Launch price was $89.
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.
Graphics Performance
The GeForce GT 740 scores 1,429 and the Iris Plus Graphics 645 reaches 1,450 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The GeForce GT 740 is built on Kepler while the Iris Plus Graphics 645 uses Generation 9.5, both on 28 nm vs 14 nm+++. Shader units: 384 (GeForce GT 740) vs 384 (Iris Plus Graphics 645). Raw compute: 0.7626 TFLOPS (GeForce GT 740) vs 0.8064 TFLOPS (Iris Plus Graphics 645).
| Feature | GeForce GT 740 | Iris Plus Graphics 645 |
|---|---|---|
| G3D Mark Score | 1,429 | 1,450+1% |
| Architecture | Kepler | Generation 9.5 |
| Process Node | 28 nm | 14 nm+++ |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.7626 TFLOPS | 0.8064 TFLOPS+6% |
| ROPs | 16+167% | 6 |
| TMUs | 32 | 48+50% |
Advanced Features (DLSS/FSR)
The GeForce GT 740 gets NVIDIA DLSS, which still tends to look cleaner in motion. The Iris Plus Graphics 645 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GT 740 | Iris Plus Graphics 645 |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | Standard |
Video Memory (VRAM)
The GeForce GT 740 has 1 GB of VRAM, while the Iris Plus Graphics 645 carries 0 MB. GeForce GT 740 gives you 100+% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the GeForce GT 740 and System on the Iris Plus Graphics 645.
| Feature | GeForce GT 740 | Iris Plus Graphics 645 |
|---|---|---|
| VRAM Capacity | 1 GB | Shared System RAM |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 64-bit | System |
Power & Dimensions
The GeForce GT 740 draws 64W versus the Iris Plus Graphics 645's 15W — a 124.1% difference. The Iris Plus Graphics 645 is more power-efficient. Recommended PSU: 300W (GeForce GT 740) vs 1W (Iris Plus Graphics 645). Power connectors: None vs Integrated.
| Feature | GeForce GT 740 | Iris Plus Graphics 645 |
|---|---|---|
| TDP | 64W | 15W-77% |
| Recommended PSU | 300W | 1W-100% |
| Power Connector | None | Integrated |
| Length | 145mm | — |
| Height | 111mm | — |
| Slots | 1 | — |
| Temp (Load) | 75 | — |
| Perf/Watt | 22.3 | 96.7+334% |
Value Analysis
At launch, the GeForce GT 740 came in at $89, while the Iris Plus Graphics 645 launched at $0. On MSRP, Iris Plus Graphics 645 was 100+% cheaper ($89 less). Performance per dollar on MSRP (G3D Mark / MSRP): 16.1 (GeForce GT 740) vs Infinity (Iris Plus Graphics 645) — the Iris Plus Graphics 645 offers Infinity% better value. The newer card here is Iris Plus Graphics 645 (2019 vs 2014).
| Feature | GeForce GT 740 | Iris Plus Graphics 645 |
|---|---|---|
| MSRP | $89 | $0-100% |
| Performance per Dollar | 16.1 | Infinity |
| Codename | GK107 | Coffee Lake GT3e |
| Release | May 29 2014 | October 7 2019 |
| Ranking | #777 | #720 |
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