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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, raw graphics performance, VRAM, feature set, power efficiency, pricing context, and long-term value so you can see which GPU actually makes more sense.

GRID P40-8Q

2015

Why buy it

✅Competitive enough if your priority is price, power, or specific feature preference.

Trade-offs

❌Less VRAM, with 4 GB vs 8 GB for high-resolution textures and newer games.
❌No equivalent frame-generation stack like FSR Frame Generation (2023).
❌Poor future-proofing: 2015-era hardware with 4 GB of VRAM is already a legacy-tier option for modern games.
❌
1210% HIGHER MSRP
$3,000 MSRPvs$229 MSRP
❌Lower G3D Mark per dollar, at 2.5 vs 32.7 G3D/$ ($3,000 MSRP vs $229 MSRP).

Radeon RX 580X

2018

Why buy it

✅Costs $2,771 less on MSRP ($229 MSRP vs $3,000 MSRP).
✅Delivers 1207.9% more G3D Mark for each dollar spent, at 32.7 vs 2.5 G3D/$ ($229 MSRP vs $3,000 MSRP).
✅Access to a newer frame-generation stack with FSR Frame Generation (2023).
✅100% more VRAM for high-resolution textures and newer games (8 GB vs 4 GB).
✅Less risky long-term buy than GRID P40-8Q: it remains the more sensible modern option while GRID P40-8Q is already legacy-tier future-proofing.

Trade-offs

❌Limited future-proofing: older hardware, 8 GB of VRAM, and weaker feature support mean it will age faster in upcoming AAA games.

GRID P40-8Q

2015

Radeon RX 580X

2018

Why buy it

✅Competitive enough if your priority is price, power, or specific feature preference.

Why buy it

✅Costs $2,771 less on MSRP ($229 MSRP vs $3,000 MSRP).
✅Delivers 1207.9% more G3D Mark for each dollar spent, at 32.7 vs 2.5 G3D/$ ($229 MSRP vs $3,000 MSRP).
✅Access to a newer frame-generation stack with FSR Frame Generation (2023).
✅100% more VRAM for high-resolution textures and newer games (8 GB vs 4 GB).
✅Less risky long-term buy than GRID P40-8Q: it remains the more sensible modern option while GRID P40-8Q is already legacy-tier future-proofing.

Trade-offs

❌Less VRAM, with 4 GB vs 8 GB for high-resolution textures and newer games.
❌No equivalent frame-generation stack like FSR Frame Generation (2023).
❌Poor future-proofing: 2015-era hardware with 4 GB of VRAM is already a legacy-tier option for modern games.
❌
1210% HIGHER MSRP
$3,000 MSRPvs$229 MSRP
❌Lower G3D Mark per dollar, at 2.5 vs 32.7 G3D/$ ($3,000 MSRP vs $229 MSRP).

Trade-offs

❌Limited future-proofing: older hardware, 8 GB of VRAM, and weaker feature support mean it will age faster in upcoming AAA games.

Quick Answers

So, is GRID P40-8Q better than Radeon RX 580X?

Yes, but this is not really about a huge raw performance gap. The broader synthetic picture is also very close at 7,507 vs 7,495 in G3D Mark. The bigger reason to prefer GRID P40-8Q is the overall package: you are getting no meaningful modern upscaling stack.

Which one is more future-proof for 2026 and beyond?

Radeon RX 580X is the more future-proof choice for 2026 and beyond. You are getting a newer 2018 generation instead of 2015, more VRAM at 8 GB instead of 4 GB, better upscaling support with FSR Upscaling / FSR 4 (2025) instead of no meaningful modern upscaling stack and better frame-generation support with FSR Frame Generation (2023) instead of no meaningful modern upscaling stack, and a 14nm process instead of 28nm. That extra memory headroom makes it the safer pick for newer games, heavier textures, and higher settings over time.

Which one is the smarter buy today, not just the cheaper card?

GRID P40-8Q is the smarter buy by a wide margin. GRID P40-8Q is about 1210.0% more expensive on MSRP at $3,000 MSRP versus $229 MSRP, and you are getting 0.2% higher G3D Mark. Radeon RX 580X really only makes sense now as a very cheap stopgap or a used-market placeholder.

When does Radeon RX 580X make more sense than GRID P40-8Q?

Yes. Radeon RX 580X is still an excellent gaming GPU in 2026: it is still comfortable for 1080p and decent for 1440p, though 4K is more situational. It makes more sense if your priority is newer architecture, lower power draw (185W vs 225W), future-proofing, and staying closer to $229 MSRP more than squeezing out the extra headroom of GRID P40-8Q. The trade-off is that GRID P40-8Q currently gives you 0.2% higher G3D Mark. Radeon RX 580X still holds the G3D-per-dollar lead, so the performance win comes with a real value premium.

Games Benchmarks

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 9800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

GRID P40-8Q Benchmark Check

Radeon RX 580X Benchmark Check

Path of Exile 2

Preset	GRID P40-8Q	Radeon RX 580X
1080p
low	104 FPS	113 FPS
medium	90 FPS	100 FPS
high	73 FPS	86 FPS
ultra	44 FPS	70 FPS
1440p
low	91 FPS	105 FPS
medium	80 FPS	87 FPS
high	58 FPS	68 FPS
ultra	33 FPS	56 FPS
4K
low	29 FPS	53 FPS
medium	27 FPS	47 FPS
high	18 FPS	30 FPS
ultra	16 FPS	26 FPS

Open GRID P40-8Q Open Radeon RX 580X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GRID P40-8Q	Radeon RX 580X
1080p
low	162 FPS	151 FPS
medium	128 FPS	131 FPS
high	94 FPS	115 FPS
ultra	75 FPS	89 FPS
1440p
low	119 FPS	90 FPS
medium	92 FPS	73 FPS
high	74 FPS	58 FPS
ultra	57 FPS	46 FPS
4K
low	68 FPS	37 FPS
medium	52 FPS	30 FPS
high	43 FPS	25 FPS
ultra	32 FPS	20 FPS

Open GRID P40-8Q Open Radeon RX 580X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GRID P40-8Q	Radeon RX 580X
1080p
low	338 FPS	337 FPS
medium	270 FPS	270 FPS
high	225 FPS	225 FPS
ultra	169 FPS	169 FPS
1440p
low	253 FPS	253 FPS
medium	203 FPS	202 FPS
high	169 FPS	169 FPS
ultra	127 FPS	126 FPS
4K
low	169 FPS	169 FPS
medium	135 FPS	135 FPS
high	113 FPS	112 FPS
ultra	84 FPS	84 FPS

Open GRID P40-8Q Open Radeon RX 580X

League of Legends

League of Legends

Valorant

Preset	GRID P40-8Q	Radeon RX 580X
1080p
low	182 FPS	317 FPS
medium	148 FPS	270 FPS
high	133 FPS	225 FPS
ultra	103 FPS	169 FPS
1440p
low	132 FPS	253 FPS
medium	110 FPS	202 FPS
high	99 FPS	164 FPS
ultra	77 FPS	126 FPS
4K
low	77 FPS	137 FPS
medium	60 FPS	107 FPS
high	49 FPS	89 FPS
ultra	36 FPS	75 FPS

Open GRID P40-8Q Open Radeon RX 580X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of GRID P40-8Q and Radeon RX 580X

GRID P40-8Q

The GRID P40-8Q is manufactured by NVIDIA. It was released in August 30 2015. It features the Maxwell 2.0 architecture. The core clock ranges from 557 MHz to 1178 MHz. It has 2048 shading units. The thermal design power (TDP) is 225W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 7,507 points.

Radeon RX 580X

The Radeon RX 580X is manufactured by AMD. It was released in April 11 2018. It features the GCN 4.0 architecture. The core clock ranges from 1257 MHz to 1340 MHz. It has 2304 shading units. The thermal design power (TDP) is 185W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 7,495 points.

⚡

Graphics Performance

The GRID P40-8Q scores 7,507 and the Radeon RX 580X reaches 7,495 in the G3D Mark benchmark — just a 0.2% difference, making them near-identical in rasterization performance. The GRID P40-8Q is built on Maxwell 2.0 while the Radeon RX 580X uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 2,048 (GRID P40-8Q) vs 2,304 (Radeon RX 580X). Raw compute: 4.825 TFLOPS (GRID P40-8Q) vs 6.175 TFLOPS (Radeon RX 580X). Boost clocks: 1178 MHz vs 1340 MHz.

Feature	GRID P40-8Q	Radeon RX 580X
G3D Mark Score	7,507	7,495
Architecture	Maxwell 2.0	GCN 4.0
Process Node	28 nm	14 nm
Shading Units	2048	2304+13%
Compute (TFLOPS)	4.825 TFLOPS	6.175 TFLOPS+28%
Boost Clock	1178 MHz	1340 MHz+14%
ROPs	64+100%	32
TMUs	128	144+13%
L1 Cache	768 KB+33%	576 KB
L2 Cache	2 MB	2 MB

✨

Advanced Features (DLSS/FSR)

A critical advantage for the Radeon RX 580X is support for FSR Frame Generation. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GRID P40-8Q lacks specific hardware/driver support for this native frame generation tier.

Feature	GRID P40-8Q	Radeon RX 580X
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	FSR Frame Generation
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The GRID P40-8Q comes with 4 GB of VRAM, while the Radeon RX 580X has 8 GB. The Radeon RX 580X offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 256-bit.

Feature	GRID P40-8Q	Radeon RX 580X
VRAM Capacity	4 GB	8 GB+100%
Memory Type	GDDR6	GDDR5
Bus Width	128-bit	256-bit+100%
L2 Cache	2 MB	2 MB

🖥️

Display & API Support

DirectX support: 12.0 (GRID P40-8Q) vs 12 (FL 12_0) (Radeon RX 580X). Vulkan: 1.1 vs 1.3. OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 0 vs 4.

Feature	GRID P40-8Q	Radeon RX 580X
DirectX	12.0	12 (FL 12_0)
Vulkan	1.1	1.3+18%
OpenGL	4.5	4.6+2%
Max Displays	0	4

🎬

Media & Encoding

Hardware encoder: NVENC 4.0 (GRID P40-8Q) vs VCE 3.4 (Radeon RX 580X). Decoder: PureVideo HD VP7 vs UVD 6.3. Supported codecs: MPEG-2,H.264,HEVC,VP9 (GRID P40-8Q) vs H.264,H.265/HEVC (Radeon RX 580X).

Feature	GRID P40-8Q	Radeon RX 580X
Encoder	NVENC 4.0	VCE 3.4
Decoder	PureVideo HD VP7	UVD 6.3
Codecs	MPEG-2,H.264,HEVC,VP9	H.264,H.265/HEVC

🔌

Power & Dimensions

The GRID P40-8Q draws 225W versus the Radeon RX 580X's 185W — a 19.5% difference. The Radeon RX 580X is more power-efficient. Recommended PSU: 350W (GRID P40-8Q) vs 500W (Radeon RX 580X). Power connectors: PCIe-powered vs 8-pin. Card length: 267mm vs 241mm, occupying 2 vs 2 slots.

Feature	GRID P40-8Q	Radeon RX 580X
TDP	225W	185W-18%
Recommended PSU	350W-30%	500W
Power Connector	PCIe-powered	8-pin
Length	267mm	241mm
Height	111mm	111mm
Slots	2	2
Perf/Watt	33.4	40.5+21%

💰

Value Analysis

The GRID P40-8Q launched at $3000 MSRP, while the Radeon RX 580X launched at $229. The Radeon RX 580X costs 92.4% less ($2771 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): 2.5 (GRID P40-8Q) vs 32.7 (Radeon RX 580X) — the Radeon RX 580X offers 1208% better value. The Radeon RX 580X is the newer GPU (2018 vs 2015).