
Mobility Radeon HD 4870 vs GRID K140Q

Mobility Radeon HD 4870
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GRID K140Q
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Performance Spectrum - GPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money. The Mobility Radeon HD 4870 is positioned at rank 621 and the GRID K140Q is on rank 197, so the GRID K140Q offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Mobility Radeon HD 4870
Performance Per Dollar GRID K140Q
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GRID K140Q is the superior choice for raw performance. It leads with a 1.1% higher G3D Mark score. However, the Mobility Radeon HD 4870 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.1%) | ✅Leading raw performance (+1.1%) |
| Longevity | 🛑Obsolete Architecture (2009 / TeraScale (2005−2013)) | 🛑Obsolete Architecture (2013 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | Standard Size (267mm) |
💎 Value Proposition
The Mobility Radeon HD 4870 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Mobility Radeon HD 4870 holds the technical lead. Priced at $20 (vs $500), it costs 96% less, resulting in a 2372.5% higher cost efficiency score.
| Insight | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+2372.5%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($20) | ⚠️Higher upfront cost ($500) |
Performance Check
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 7800X3D 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.
Technical Specifications
Side-by-side comparison of Mobility Radeon HD 4870 and GRID K140Q

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.

GRID K140Q
The GRID K140Q is manufactured by NVIDIA. It was released in June 28 2013. It features the Kepler architecture. The core clock speed is 745 MHz. It has 1536 shading units. The thermal design power (TDP) is 225W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 728 points. Launch price was $469.
Graphics Performance
The Mobility Radeon HD 4870 scores 720 and the GRID K140Q reaches 728 in the G3D Mark benchmark — just a 1.1% difference, making them near-identical in rasterization performance. The Mobility Radeon HD 4870 is built on TeraScale while the GRID K140Q uses Kepler, both on 55 nm vs 28 nm. Shader units: 800 (Mobility Radeon HD 4870) vs 1,536 (GRID K140Q). Raw compute: 0.88 TFLOPS (Mobility Radeon HD 4870) vs 2.289 TFLOPS (GRID K140Q).
| Feature | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| G3D Mark Score | 720 | 728+1% |
| Architecture | TeraScale | Kepler |
| Process Node | 55 nm | 28 nm |
| Shading Units | 800 | 1536+92% |
| Compute (TFLOPS) | 0.88 TFLOPS | 2.289 TFLOPS+160% |
| ROPs | 16 | 32+100% |
| TMUs | 40 | 128+220% |
| L1 Cache | 160 KB+25% | 128 KB |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
The Mobility Radeon HD 4870 comes with 1 GB of VRAM, while the GRID K140Q has 512 MB. The Mobility Radeon HD 4870 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 64-bit. L2 Cache: 256 KB (Mobility Radeon HD 4870) vs 512 KB (GRID K140Q) — the GRID K140Q has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 64-bit |
| L2 Cache | 256 KB | 512 KB+100% |
Display & API Support
DirectX support: 10.1 (Mobility Radeon HD 4870) vs 11_0 (GRID K140Q). Maximum simultaneous displays: 2 vs 0.
| Feature | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| DirectX | 10.1 | 11_0+9% |
| Max Displays | 2 | 0 |
Media & Encoding
Decoder: UVD 2.0 vs NVDEC 1st Gen.
| Feature | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| Encoder | — | NVENC 3rd Gen |
| Decoder | UVD 2.0 | NVDEC 1st Gen |
| Codecs | H.264,VC-1,MPEG-2 | — |
Power & Dimensions
The Mobility Radeon HD 4870 draws 30W versus the GRID K140Q's 225W — a 152.9% difference. The Mobility Radeon HD 4870 is more power-efficient. Recommended PSU: 350W (Mobility Radeon HD 4870) vs 350W (GRID K140Q). Power connectors: PCIe-powered vs PCIe-powered.
| Feature | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| TDP | 30W-87% | 225W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | — | 267mm |
| Slots | 0-100% | 1 |
| Perf/Watt | 24.0+650% | 3.2 |
Value Analysis
The Mobility Radeon HD 4870 launched at $299 MSRP and currently averages $20, while the GRID K140Q launched at $125 and now averages $500. The Mobility Radeon HD 4870 costs 96% less ($480 savings) at current market prices. Performance per dollar (G3D Mark / price): 36.0 (Mobility Radeon HD 4870) vs 1.5 (GRID K140Q) — the Mobility Radeon HD 4870 offers 2300% better value. The GRID K140Q is the newer GPU (2013 vs 2009).
| Feature | Mobility Radeon HD 4870 | GRID K140Q |
|---|---|---|
| MSRP | $299 | $125-58% |
| Avg Price (30d) | $20-96% | $500 |
| Performance per Dollar | 36.0+2300% | 1.5 |
| Codename | M98 | GK104 |
| Release | January 9 2009 | June 28 2013 |
| Ranking | #927 | #628 |
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