GeForce GT 645 vs Quadro P520

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 Quadro P520 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 Quadro P520: 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 $51 less on MSRP ($99 MSRP vs $150 MSRP).
✅Delivers 49.4% more G3D Mark for each dollar spent, at 20.3 vs 13.6 G3D/$ ($99 MSRP vs $150 MSRP).

Trade-offs

❌Lower average FPS than Quadro P520 across 50 tracked games in our benchmark data.
❌Less VRAM, with 2 GB vs 4 GB for high-resolution textures and newer games.
❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌77.8% higher power demand at 32W vs 18W.

Quadro P520

2019

Why buy it

✅75.7% more average FPS across 50 tracked games in our benchmark data.
✅100% more VRAM for high-resolution textures and newer games (4 GB vs 2 GB).
✅GeForce GT 645 is already obsolete for modern gaming, so Quadro P520 is the less risky modern option long term.
✅Draws 18W instead of 32W, a 14W reduction.

Trade-offs

❌2019 hardware with 4 GB of VRAM already sits in legacy territory for modern games.
❌
51.5% HIGHER MSRP
$150 MSRPvs$99 MSRP
❌Lower G3D Mark per dollar, at 13.6 vs 20.3 G3D/$ ($150 MSRP vs $99 MSRP).

Quick Answers

Which GPU is faster for gaming right now?

Quadro P520 is the faster gaming card right now. In our data, it leads by 75.7% in average FPS across 50 tracked games in our benchmark data and by 1.4% in PassMark G3D (2,034 vs 2,006), so the answer here is pretty clean.

Which GPU is the safer long-term pick for 2026 and beyond?

Quadro P520 is the safer long-term pick for 2026 and beyond. The case is simple: 4 GB vs 2 GB of VRAM, a 14nm process instead of 28nm, and a newer 2019 generation instead of 2012. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

GeForce GT 645 makes the most sense to buy today. It is $51 cheaper on MSRP at $99 vs $150, and it leads G3D-per-dollar by 49.4% (20.3 vs 13.6), 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, Quadro P520 has the stronger long-term case.

GeForce GT 645 vs Quadro P520 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.

Quadro P520

The Quadro P520 is manufactured by NVIDIA. It was released in May 23 2019. It features the Pascal architecture. The core clock ranges from 1303 MHz to 1493 MHz. It has 384 shading units. The thermal design power (TDP) is 18W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 2,034 points.

⚡

Graphics Performance

The GeForce GT 645 scores 2,006 and the Quadro P520 reaches 2,034 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The GeForce GT 645 is built on Kepler while the Quadro P520 uses Pascal, both on 28 nm vs 14 nm. Shader units: 384 (GeForce GT 645) vs 384 (Quadro P520). Raw compute: 0.5445 TFLOPS (GeForce GT 645) vs 1.147 TFLOPS (Quadro P520).

Feature	GeForce GT 645	Quadro P520
G3D Mark Score	2,006	2,034+1%
Architecture	Kepler	Pascal
Process Node	28 nm	14 nm
Shading Units	384	384
Compute (TFLOPS)	0.5445 TFLOPS	1.147 TFLOPS+111%
ROPs	16	16
TMUs	32+33%	24
L1 Cache	32 KB	144 KB+350%
L2 Cache	256 KB	512 KB+100%

✨

Advanced Features (DLSS/FSR)

The GeForce GT 645 gets NVIDIA DLSS, which still tends to look cleaner in motion. The Quadro P520 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GT 645	Quadro P520
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 645 has 2 GB of VRAM, while the Quadro P520 carries 4 GB. Quadro P520 gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce GT 645 and 64-bit on the Quadro P520. L2 Cache: 256 KB (GeForce GT 645) vs 512 KB (Quadro P520) — the Quadro P520 has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GT 645	Quadro P520
VRAM Capacity	2 GB	4 GB+100%
Memory Type	GDDR5	GDDR5
Bus Width	128-bit+100%	64-bit
L2 Cache	256 KB	512 KB+100%

🔌

Power & Dimensions

The GeForce GT 645 draws 32W versus the Quadro P520's 18W — a 56% difference. The Quadro P520 is more power-efficient. Recommended PSU: 350W (GeForce GT 645) vs 350W (Quadro P520). Power connectors: PCIe-powered vs PCIe-powered.

Feature	GeForce GT 645	Quadro P520
TDP	32W	18W-44%
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Length	145mm	—
Height	111mm	—
Slots	1	—
Temp (Load)	80	—
Perf/Watt	62.7	113.0+80%

💰

Value Analysis

At launch, the GeForce GT 645 came in at $99, while the Quadro P520 launched at $150. On MSRP, GeForce GT 645 was 34% cheaper ($51 less). Performance per dollar on MSRP (G3D Mark / MSRP): 20.3 (GeForce GT 645) vs 13.6 (Quadro P520) — the GeForce GT 645 offers 49.3% better value. The newer card here is Quadro P520 (2019 vs 2012).

Feature	GeForce GT 645	Quadro P520
MSRP	$99-34%	$150
Performance per Dollar	20.3+49%	13.6
Codename	GK107	GP108
Release	October 1 2012	May 23 2019
Ranking	#903	#677

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