GRID P4-8Q vs Radeon Pro Vega 20

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.

GRID P4-8Q vs Radeon Pro Vega 20 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.

GRID P4-8Q vs Radeon Pro Vega 20: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

GRID P4-8Q

2015

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 2.6 vs 0 G3D/$ ($2,000 MSRP vs Unknown MSRP).
✅100+% more VRAM for high-resolution textures and newer games (4 GB vs Unknown).
✅Radeon Pro Vega 20 is already obsolete for modern gaming, so GRID P4-8Q is the less risky modern option long term.

Trade-offs

❌2015 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Radeon Pro Vega 20

2018

Why buy it

✅More future proof: GCN 5.0 (2017−2020) on 14nm with a newer platform for upcoming games.

Trade-offs

❌Less VRAM, with Unknown vs 4 GB for high-resolution textures and newer games.
❌2018 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 2.6 G3D/$ (Unknown MSRP vs $2,000 MSRP).

Quick Answers

Which GPU is faster for gaming right now?

GRID P4-8Q is the faster gaming card right now based on the synthetic data we have. It leads by 2.2% in PassMark G3D (5,283 vs 5,169), which is the best performance signal available in this matchup.

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

GRID P4-8Q is the safer long-term pick for 2026 and beyond. The case is simple: 4 GB vs Unknown of VRAM. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

GRID P4-8Q makes the most sense today based on the pricing and value data we have for this matchup.

GRID P4-8Q vs Radeon Pro Vega 20 Technical Specifications

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

GRID P4-8Q

The GRID P4-8Q is manufactured by NVIDIA. It was released in August 30 2015. It features the Maxwell 2.0 architecture. The core clock speed is 722 MHz. It has 1536 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 5,283 points.

Radeon Pro Vega 20

The Radeon Pro Vega 20 is manufactured by AMD. It was released in November 14 2018. It features the GCN 5.0 architecture. The core clock ranges from 815 MHz to 1283 MHz. It has 1280 shading units. The thermal design power (TDP) is 100W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 5,169 points.

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Graphics Performance

The GRID P4-8Q scores 5,283 and the Radeon Pro Vega 20 reaches 5,169 in the G3D Mark benchmark — just a 2.2% difference, making them near-identical in rasterization performance. The GRID P4-8Q is built on Maxwell 2.0 while the Radeon Pro Vega 20 uses GCN 5.0, both on 28 nm vs 14 nm. Shader units: 1,536 (GRID P4-8Q) vs 1,280 (Radeon Pro Vega 20). Raw compute: 2.218 TFLOPS (GRID P4-8Q) vs 3.284 TFLOPS (Radeon Pro Vega 20).

Feature	GRID P4-8Q	Radeon Pro Vega 20
G3D Mark Score	5,283+2%	5,169
Architecture	Maxwell 2.0	GCN 5.0
Process Node	28 nm	14 nm
Shading Units	1536+20%	1280
Compute (TFLOPS)	2.218 TFLOPS	3.284 TFLOPS+48%
ROPs	64+100%	32
TMUs	96+20%	80
L1 Cache	576 KB+80%	320 KB
L2 Cache	2 MB+100%	1 MB

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Advanced Features (DLSS/FSR)

Feature	GRID P4-8Q	Radeon Pro Vega 20
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

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Video Memory (VRAM)

The GRID P4-8Q has 4 GB of VRAM, while the Radeon Pro Vega 20 carries 0 MB. GRID P4-8Q 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 GRID P4-8Q and 128-bit on the Radeon Pro Vega 20. L2 Cache: 2 MB (GRID P4-8Q) vs 1 MB (Radeon Pro Vega 20) — the GRID P4-8Q has significantly larger on-die cache to reduce VRAM reliance.

Feature	GRID P4-8Q	Radeon Pro Vega 20
VRAM Capacity	4 GB	Shared System RAM
Memory Type	GDDR6	GDDR6
Bus Width	128-bit	128-bit
L2 Cache	2 MB+100%	1 MB

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Power & Dimensions

The GRID P4-8Q draws 100W versus the Radeon Pro Vega 20's 100W — a 0% difference. The Radeon Pro Vega 20 is more power-efficient. Recommended PSU: 350W (GRID P4-8Q) vs 1W (Radeon Pro Vega 20). Power connectors: PCIe-powered vs Integrated.

Feature	GRID P4-8Q	Radeon Pro Vega 20
TDP	100W	100W
Recommended PSU	350W	1W-100%
Power Connector	PCIe-powered	Integrated
Length	—	0mm
Height	—	0mm
Slots	—	0
Temp (Load)	—	80
Perf/Watt	52.8+2%	51.7

💰

Value Analysis

At launch, the GRID P4-8Q came in at $2000, while the Radeon Pro Vega 20 launched at $0. On MSRP, Radeon Pro Vega 20 was 100+% cheaper ($2000 less). Performance per dollar on MSRP (G3D Mark / MSRP): 2.6 (GRID P4-8Q) vs Infinity (Radeon Pro Vega 20) — the Radeon Pro Vega 20 offers Infinity% better value. The newer card here is Radeon Pro Vega 20 (2018 vs 2015).

Feature	GRID P4-8Q	Radeon Pro Vega 20
MSRP	$2000	$0-100%
Performance per Dollar	2.6	Infinity
Codename	GM204	Vega 12
Release	August 30 2015	November 14 2018
Ranking	#535	#435

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