GeForce GT 645 vs Radeon Ryzen 5 5500H

NVIDIA

GeForce GT 645

2012Core: Up to 710 MHz
Similar parts
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VS
AMD

Radeon Ryzen 5 5500H

2019Boost: 1845 MHz

GeForce GT 645 vs Radeon Ryzen 5 5500H 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 5500H 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.

GeForce GT 645 vs Radeon Ryzen 5 5500H: 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

2012

Why buy it

  • Costs $151 less on MSRP ($99 MSRP vs $250 MSRP).
  • Delivers 150.8% more G3D Mark for each dollar spent, at 20.3 vs 8.1 G3D/$ ($99 MSRP vs $250 MSRP).
  • Draws 32W instead of 110W, a 78W reduction.

Trade-offs

  • Lower average FPS than Radeon Ryzen 5 5500H 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 5500H

2019

Why buy it

  • 178.0% more average FPS across 50 tracked games in our benchmark data.
  • GeForce GT 645 is already obsolete for modern gaming, so Radeon Ryzen 5 5500H 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.
  • 152.5% HIGHER MSRP
    $250 MSRPvs$99 MSRP
  • Lower G3D Mark per dollar, at 8.1 vs 20.3 G3D/$ ($250 MSRP vs $99 MSRP).
  • 243.8% higher power demand at 110W vs 32W.

Quick Answers

Which GPU is faster for gaming right now?
Radeon Ryzen 5 5500H is the faster gaming card right now. In our data, it leads by 178.0% in average FPS across 50 tracked games in our benchmark data and by 0.7% in PassMark G3D (2,020 vs 2,006), so the answer here is pretty clean.
Which GPU is the safer long-term pick for 2026 and beyond?
Radeon Ryzen 5 5500H is the safer long-term pick for 2026 and beyond. The case is simple: the newer upscaling stack, FSR Upscaling / FSR 4 (2025) instead of no meaningful modern upscaling stack, a 7nm process instead of 28nm, and a newer 2019 generation instead of 2012. That makes it the less risky pick as game demands keep moving.
Which GPU is the better buy today?
GeForce GT 645 makes the most sense to buy today. It is $151 cheaper on MSRP at $99 vs $250, and it leads G3D-per-dollar by 150.8% (20.3 vs 8.1), which is enough to swing the recommendation its way. If you are mainly targeting 1080p and some 1440p, GeForce GT 645 is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon Ryzen 5 5500H has the stronger long-term case.

GeForce GT 645 vs Radeon Ryzen 5 5500H Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

NVIDIA

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.

AMD

Radeon Ryzen 5 5500H

The Radeon Ryzen 5 5500H 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: 2,020 points.

Graphics Performance

The GeForce GT 645 scores 2,006 and the Radeon Ryzen 5 5500H reaches 2,020 in the G3D Mark benchmark — just a 0.7% difference, making them near-identical in rasterization performance. The GeForce GT 645 is built on Kepler while the Radeon Ryzen 5 5500H uses RDNA 1.0, both on 28 nm vs 7 nm. Shader units: 384 (GeForce GT 645) vs 1,408 (Radeon Ryzen 5 5500H). Raw compute: 0.5445 TFLOPS (GeForce GT 645) vs 5.196 TFLOPS (Radeon Ryzen 5 5500H).

FeatureGeForce GT 645Radeon Ryzen 5 5500H
G3D Mark Score
2,006
2,020
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 5500H leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

FeatureGeForce GT 645Radeon Ryzen 5 5500H
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 5500H.

FeatureGeForce GT 645Radeon Ryzen 5 5500H
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 5500H'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 5500H). Power connectors: PCIe-powered vs None.

FeatureGeForce GT 645Radeon Ryzen 5 5500H
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 5500H launched at $250. On MSRP, GeForce GT 645 was 60.4% cheaper ($151 less). Performance per dollar on MSRP (G3D Mark / MSRP): 20.3 (GeForce GT 645) vs 8.1 (Radeon Ryzen 5 5500H) — the GeForce GT 645 offers 150.6% better value. The newer card here is Radeon Ryzen 5 5500H (2019 vs 2012).

FeatureGeForce GT 645Radeon Ryzen 5 5500H
MSRP
$99-60%
$250
Performance per Dollar
20.3+151%
8.1
Codename
GK107
Navi 14
Release
October 1 2012
October 7 2019
Ranking
#903
#297

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