
GRID K140Q

Mobility Radeon HD 4870
GRID K140Q 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 K140Q vs Mobility Radeon HD 4870 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 K140Q 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 K140Q
2013Why buy it
- ✅Costs $174 less on MSRP ($125 MSRP vs $299 MSRP).
- ✅Delivers 141.9% more G3D Mark for each dollar spent, at 5.8 vs 2.4 G3D/$ ($125 MSRP vs $299 MSRP).
- ✅More future proof: Kepler (2012−2018) 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.
- ❌2013 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌650% higher power demand at 225W vs 30W.
Mobility Radeon HD 4870
2009Why buy it
- ✅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.
- ❌139.2% HIGHER MSRP$299 MSRPvs$125 MSRP
- ❌Lower G3D Mark per dollar, at 2.4 vs 5.8 G3D/$ ($299 MSRP vs $125 MSRP).
Quick Answers
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GRID K140Q vs Mobility Radeon HD 4870 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.

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 K140Q scores 728 and the Mobility Radeon HD 4870 reaches 720 in the G3D Mark benchmark — just a 1.1% difference, making them near-identical in rasterization performance. The GRID K140Q is built on Kepler while the Mobility Radeon HD 4870 uses TeraScale, both on 28 nm vs 55 nm. Shader units: 1,536 (GRID K140Q) vs 800 (Mobility Radeon HD 4870). Raw compute: 2.289 TFLOPS (GRID K140Q) vs 0.88 TFLOPS (Mobility Radeon HD 4870).
| Feature | GRID K140Q | Mobility Radeon HD 4870 |
|---|---|---|
| G3D Mark Score | 728+1% | 720 |
| Architecture | Kepler | TeraScale |
| Process Node | 28 nm | 55 nm |
| Shading Units | 1536+92% | 800 |
| Compute (TFLOPS) | 2.289 TFLOPS+160% | 0.88 TFLOPS |
| ROPs | 32+100% | 16 |
| TMUs | 128+220% | 40 |
| L1 Cache | 128 KB | 160 KB+25% |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | GRID K140Q | Mobility 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 K140Q 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 K140Q and 64-bit on the Mobility Radeon HD 4870. L2 Cache: 512 KB (GRID K140Q) vs 256 KB (Mobility Radeon HD 4870) — the GRID K140Q has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GRID K140Q | Mobility Radeon HD 4870 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 1 GB+100% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 64-bit |
| L2 Cache | 512 KB+100% | 256 KB |
Display & API Support
DirectX support: 11_0 (GRID K140Q) vs 10.1 (Mobility Radeon HD 4870). Maximum simultaneous displays: 0 vs 2.
| Feature | GRID K140Q | Mobility Radeon HD 4870 |
|---|---|---|
| DirectX | 11_0+9% | 10.1 |
| Max Displays | 0 | 2 |
Media & Encoding
Decoder: NVDEC 1st Gen vs UVD 2.0.
| Feature | GRID K140Q | Mobility Radeon HD 4870 |
|---|---|---|
| Encoder | NVENC 3rd Gen | — |
| Decoder | NVDEC 1st Gen | UVD 2.0 |
| Codecs | — | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GRID K140Q 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 K140Q) vs 350W (Mobility Radeon HD 4870). Power connectors: PCIe-powered vs PCIe-powered.
| Feature | GRID K140Q | Mobility Radeon HD 4870 |
|---|---|---|
| TDP | 225W | 30W-87% |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 267mm | — |
| Slots | 1 | 0-100% |
| Perf/Watt | 3.2 | 24.0+650% |
Value Analysis
At launch, the GRID K140Q came in at $125, while the Mobility Radeon HD 4870 launched at $299. On MSRP, GRID K140Q was 58.2% cheaper ($174 less). Performance per dollar on MSRP (G3D Mark / MSRP): 5.8 (GRID K140Q) vs 2.4 (Mobility Radeon HD 4870) — the GRID K140Q offers 141.7% better value. The newer card here is GRID K140Q (2013 vs 2009).
| Feature | GRID K140Q | Mobility Radeon HD 4870 |
|---|---|---|
| MSRP | $125-58% | $299 |
| Performance per Dollar | 5.8+142% | 2.4 |
| Codename | GK104 | M98 |
| Release | June 28 2013 | January 9 2009 |
| Ranking | #628 | #927 |
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