GRID P40-8Q
Radeon RX 580X
GRID P40-8Q vs Radeon RX 580X 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.
GRID P40-8Q vs Radeon RX 580X 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
GRID P40-8Q vs Radeon RX 580X: 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 P40-8Q
2015Why 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).
- ❌2015 hardware with 4 GB of VRAM already sits in legacy territory 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
2018Why 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).
- ✅GRID P40-8Q is already legacy-tier future-proofing, so Radeon RX 580X is the less risky modern option long term.
Trade-offs
- ❌Older hardware, 8 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
Quick Answers
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GRID P40-8Q vs Radeon RX 580X Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
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)
The clearest feature edge for the Radeon RX 580X is support for FSR Frame Generation. In games that support it, that can smooth out motion and lift perceived FPS. The GRID P40-8Q does not have comparable native support in the same 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 has 4 GB of VRAM, while the Radeon RX 580X carries 8 GB. Radeon RX 580X 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 P40-8Q and 256-bit on the Radeon RX 580X.
| 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
At launch, the GRID P40-8Q came in at $3000, while the Radeon RX 580X launched at $229. On MSRP, Radeon RX 580X was 92.4% cheaper ($2771 less). 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 newer card here is Radeon RX 580X (2018 vs 2015).
| Feature | GRID P40-8Q | Radeon RX 580X |
|---|---|---|
| MSRP | $3000 | $229-92% |
| Performance per Dollar | 2.5 | 32.7+1208% |
| Codename | GM204 | Polaris 20 |
| Release | August 30 2015 | April 11 2018 |
| Ranking | #505 | #337 |
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