
GeForce GT 645

Radeon Ryzen 5 5500U
GeForce GT 645 vs Radeon Ryzen 5 5500U 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 645 vs Radeon Ryzen 5 5500U 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

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
GeForce GT 645 vs Radeon Ryzen 5 5500U: 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 645
2012Why buy it
- ✅Costs $201 less on MSRP ($99 MSRP vs $300 MSRP).
- ✅Delivers 200.3% more G3D Mark for each dollar spent, at 20.3 vs 6.7 G3D/$ ($99 MSRP vs $300 MSRP).
- ✅Draws 32W instead of 110W, a 78W reduction.
Trade-offs
- ❌Lower average FPS than Radeon Ryzen 5 5500U across 50 tracked games in our benchmark data.
- ❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Radeon Ryzen 5 5500U
2019Why buy it
- ✅182.2% more average FPS across 50 tracked games in our benchmark data.
- ✅GeForce GT 645 is already obsolete for modern gaming, so Radeon Ryzen 5 5500U is the less risky modern option long term.
- ✅More future proof: RDNA 1.0 (2019−2020) on 7nm with a newer platform for upcoming games.
Trade-offs
- ❌Older hardware, 2 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
- ❌203% HIGHER MSRP$300 MSRPvs$99 MSRP
- ❌Lower G3D Mark per dollar, at 6.7 vs 20.3 G3D/$ ($300 MSRP vs $99 MSRP).
- ❌243.8% higher power demand at 110W vs 32W.
Quick Answers
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GeForce GT 645 vs Radeon Ryzen 5 5500U Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.


Radeon Ryzen 5 5500U
The Radeon Ryzen 5 5500U is manufactured by AMD. It was released in October 7 2019. It features the RDNA 1.0 architecture. The boost clock speed is 1845 MHz. It has 1408 shading units. The thermal design power (TDP) is 110W. Manufactured using 7 nm process technology. G3D Mark benchmark score: 2,024 points.
Graphics Performance
The GeForce GT 645 scores 2,006 and the Radeon Ryzen 5 5500U reaches 2,024 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The GeForce GT 645 is built on Kepler while the Radeon Ryzen 5 5500U uses RDNA 1.0, both on 28 nm vs 7 nm. Shader units: 384 (GeForce GT 645) vs 1,408 (Radeon Ryzen 5 5500U). Raw compute: 0.5445 TFLOPS (GeForce GT 645) vs 5.196 TFLOPS (Radeon Ryzen 5 5500U).
| Feature | GeForce GT 645 | Radeon Ryzen 5 5500U |
|---|---|---|
| G3D Mark Score | 2,006 | 2,024 |
| Architecture | Kepler | RDNA 1.0 |
| Process Node | 28 nm | 7 nm |
| Shading Units | 384 | 1408+267% |
| Compute (TFLOPS) | 0.5445 TFLOPS | 5.196 TFLOPS+854% |
| ROPs | 16 | 32+100% |
| TMUs | 32 | 88+175% |
Advanced Features (DLSS/FSR)
The GeForce GT 645 gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon Ryzen 5 5500U leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GT 645 | Radeon Ryzen 5 5500U |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
Both cards ship with 2 GB of video memory. Memory bus width is 128-bit on the GeForce GT 645 and System on the Radeon Ryzen 5 5500U.
| Feature | GeForce GT 645 | Radeon Ryzen 5 5500U |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 128-bit | System |
Power & Dimensions
The GeForce GT 645 draws 32W versus the Radeon Ryzen 5 5500U's 110W — a 109.9% difference. The GeForce GT 645 is more power-efficient. Recommended PSU: 350W (GeForce GT 645) vs 350W (Radeon Ryzen 5 5500U). Power connectors: PCIe-powered vs None.
| Feature | GeForce GT 645 | Radeon Ryzen 5 5500U |
|---|---|---|
| TDP | 32W-71% | 110W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | None |
| Length | 145mm | — |
| Height | 111mm | — |
| Slots | 1 | — |
| Temp (Load) | 80 | — |
| Perf/Watt | 62.7+241% | 18.4 |
Value Analysis
At launch, the GeForce GT 645 came in at $99, while the Radeon Ryzen 5 5500U launched at $300. On MSRP, GeForce GT 645 was 67% cheaper ($201 less). Performance per dollar on MSRP (G3D Mark / MSRP): 20.3 (GeForce GT 645) vs 6.7 (Radeon Ryzen 5 5500U) — the GeForce GT 645 offers 203% better value. The newer card here is Radeon Ryzen 5 5500U (2019 vs 2012).
| Feature | GeForce GT 645 | Radeon Ryzen 5 5500U |
|---|---|---|
| MSRP | $99-67% | $300 |
| Performance per Dollar | 20.3+203% | 6.7 |
| Codename | GK107 | Navi 14 |
| Release | October 1 2012 | October 7 2019 |
| Ranking | #903 | #297 |
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