GRID P4-1Q vs Mobility Radeon HD 4870

GRID P4-1Q

2015Core: 557 MHzBoost: 1178 MHz
Similar parts
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VS
AMD

Mobility Radeon HD 4870

2009Core: 550 MHz
Similar parts
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GRID P4-1Q vs Mobility Radeon HD 4870 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 P4-1Q vs Mobility Radeon HD 4870: 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 P4-1Q

2015

Why buy it

  • More future proof: Maxwell 2.0 (2014−2019) on 28nm with a newer platform for upcoming games.

Trade-offs

  • Less VRAM, with 512 MB vs 1 GB for high-resolution textures and newer games.
  • 2015 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
  • 1869.9% HIGHER MSRP
    $5,890 MSRPvs$299 MSRP
  • Lower G3D Mark per dollar, at 0.1 vs 2.4 G3D/$ ($5,890 MSRP vs $299 MSRP).
  • 650% higher power demand at 225W vs 30W.

Mobility Radeon HD 4870

2009

Why buy it

  • Costs $5,591 less on MSRP ($299 MSRP vs $5,890 MSRP).
  • Delivers 1842.9% more G3D Mark for each dollar spent, at 2.4 vs 0.1 G3D/$ ($299 MSRP vs $5,890 MSRP).
  • 100% more VRAM for high-resolution textures and newer games (1 GB vs 512 MB).
  • Draws 30W instead of 225W, a 195W reduction.

Trade-offs

  • 2009 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Quick Answers

Which GPU is faster for gaming right now?
GRID P4-1Q is the faster gaming card right now based on the synthetic data we have. It leads by 1.4% in PassMark G3D (730 vs 720), which is the best performance signal available in this matchup.
Which GPU is the safer long-term pick for 2026 and beyond?
GRID P4-1Q is the safer long-term pick for 2026 and beyond. The case is simple: a 28nm process instead of 55nm and a newer 2015 generation instead of 2009. That makes it the less risky pick as game demands keep moving.
Which GPU is the better buy today?
Mobility Radeon HD 4870 makes the most sense to buy today. It is $5,591 cheaper on MSRP at $299 vs $5,890, and it leads G3D-per-dollar by 1842.9% (2.4 vs 0.1), which is enough to swing the recommendation its way. If you are mainly targeting 1080p and some 1440p, Mobility Radeon HD 4870 is the easier value choice. If you care more about 1080p and some 1440p headroom, GRID P4-1Q has the stronger long-term case.

GRID P4-1Q vs Mobility Radeon HD 4870 Technical Specifications

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

NVIDIA

GRID P4-1Q

The GRID P4-1Q 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: 730 points.

AMD

Mobility Radeon HD 4870

The Mobility Radeon HD 4870 is manufactured by AMD. It was released in January 9 2009. It features the TeraScale architecture. The core clock speed is 550 MHz. It has 800 shading units. The thermal design power (TDP) is 30W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 720 points.

Graphics Performance

The GRID P4-1Q scores 730 and the Mobility Radeon HD 4870 reaches 720 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The GRID P4-1Q is built on Maxwell 2.0 while the Mobility Radeon HD 4870 uses TeraScale, both on 28 nm vs 55 nm. Shader units: 2,048 (GRID P4-1Q) vs 800 (Mobility Radeon HD 4870). Raw compute: 4.825 TFLOPS (GRID P4-1Q) vs 0.88 TFLOPS (Mobility Radeon HD 4870).

FeatureGRID P4-1QMobility Radeon HD 4870
G3D Mark Score
730+1%
720
Architecture
Maxwell 2.0
TeraScale
Process Node
28 nm
55 nm
Shading Units
2048+156%
800
Compute (TFLOPS)
4.825 TFLOPS+448%
0.88 TFLOPS
ROPs
64+300%
16
TMUs
128+220%
40
L1 Cache
768 KB+380%
160 KB
L2 Cache
2 MB+700%
0.25 MB

Advanced Features (DLSS/FSR)

FeatureGRID P4-1QMobility Radeon HD 4870
Upscaling Tech
Upscaling support
FSR Upscaling / FSR 4
Frame Generation
Not Supported
Not Supported
Ray Reconstruction
No
No
Low Latency
Standard
AMD Anti-Lag
💾

Video Memory (VRAM)

The GRID P4-1Q has 512 MB of VRAM, while the Mobility Radeon HD 4870 carries 1 GB. Mobility Radeon HD 4870 gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the GRID P4-1Q and 64-bit on the Mobility Radeon HD 4870. L2 Cache: 2 MB (GRID P4-1Q) vs 0.25 MB (Mobility Radeon HD 4870) — the GRID P4-1Q has significantly larger on-die cache to reduce VRAM reliance.

FeatureGRID P4-1QMobility Radeon HD 4870
VRAM Capacity
0.5 GB
1 GB+100%
Memory Type
GDDR5
GDDR5
Bus Width
64-bit
64-bit
L2 Cache
2 MB+700%
0.25 MB
🔌

Power & Dimensions

The GRID P4-1Q draws 225W versus the Mobility Radeon HD 4870's 30W — a 152.9% difference. The Mobility Radeon HD 4870 is more power-efficient. Recommended PSU: 350W (GRID P4-1Q) vs 350W (Mobility Radeon HD 4870). Power connectors: PCIe-powered vs PCIe-powered.

FeatureGRID P4-1QMobility Radeon HD 4870
TDP
225W
30W-87%
Recommended PSU
350W
350W
Power Connector
PCIe-powered
PCIe-powered
Slots
0
Perf/Watt
3.2
24.0+650%
💰

Value Analysis

At launch, the GRID P4-1Q came in at $5890, while the Mobility Radeon HD 4870 launched at $299. On MSRP, Mobility Radeon HD 4870 was 94.9% cheaper ($5591 less). Performance per dollar on MSRP (G3D Mark / MSRP): 0.1 (GRID P4-1Q) vs 2.4 (Mobility Radeon HD 4870) — the Mobility Radeon HD 4870 offers 2300% better value. The newer card here is GRID P4-1Q (2015 vs 2009).

FeatureGRID P4-1QMobility Radeon HD 4870
MSRP
$5890
$299-95%
Performance per Dollar
0.1
2.4+2300%
Codename
GM204
M98
Release
August 30 2015
January 9 2009
Ranking
#525
#927

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