
Radeon HD 7870M
Popular choices:

Radeon HD 4890
Popular choices:
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. The Radeon HD 7870M is positioned at rank #122 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD 7870M
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 4890 is the superior choice for raw performance. It leads with a 2.6% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7870M.
| Insight | Radeon HD 7870M | Radeon HD 4890 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-2.6%) | ✅Leading raw performance (+2.6%) |
| Longevity | 🛑Obsolete Architecture (2012 / GCN 1.0 (2012−2020)) | 🛑Obsolete Architecture (2009 / TeraScale (2005−2013)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the Radeon HD 4890 remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 Radeon HD 7870M and Radeon HD 4890

Radeon HD 7870M
The Radeon HD 7870M is manufactured by AMD. It was released in April 24 2012. It features the GCN 1.0 architecture. The core clock speed is 800 MHz. It has 640 shading units. The thermal design power (TDP) is 45W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,507 points.

Radeon HD 4890
The Radeon HD 4890 is manufactured by AMD. It was released in April 2 2009. It features the TeraScale architecture. The core clock speed is 850 MHz. It has 800 shading units. The thermal design power (TDP) is 190W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 1,546 points. Launch price was $249.
Graphics Performance
The Radeon HD 7870M scores 1,507 and the Radeon HD 4890 reaches 1,546 in the G3D Mark benchmark — just a 2.6% difference, making them near-identical in rasterization performance. The Radeon HD 7870M is built on GCN 1.0 while the Radeon HD 4890 uses TeraScale, both on 28 nm vs 55 nm. Shader units: 640 (Radeon HD 7870M) vs 800 (Radeon HD 4890). Raw compute: 1.024 TFLOPS (Radeon HD 7870M) vs 1.36 TFLOPS (Radeon HD 4890).
| Feature | Radeon HD 7870M | Radeon HD 4890 |
|---|---|---|
| G3D Mark Score | 1,507 | 1,546+3% |
| Architecture | GCN 1.0 | TeraScale |
| Process Node | 28 nm | 55 nm |
| Shading Units | 640 | 800+25% |
| Compute (TFLOPS) | 1.024 TFLOPS | 1.36 TFLOPS+33% |
| ROPs | 16 | 16 |
| TMUs | 40 | 40 |
| L1 Cache | 160 KB | 160 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7870M | Radeon HD 4890 |
|---|---|---|
| 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 | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 2 GB of video memory. Bus width: System vs 64-bit.
| Feature | Radeon HD 7870M | Radeon HD 4890 |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 64-bit |
| L2 Cache | 256 KB | 256 KB |
Power & Dimensions
The Radeon HD 7870M draws 45W versus the Radeon HD 4890's 190W — a 123.4% difference. The Radeon HD 7870M is more power-efficient. Recommended PSU: 350W (Radeon HD 7870M) vs 500W (Radeon HD 4890). Power connectors: 1x 6-pin vs 2x 6-pin.
| Feature | Radeon HD 7870M | Radeon HD 4890 |
|---|---|---|
| TDP | 45W-76% | 190W |
| Recommended PSU | 350W-30% | 500W |
| Power Connector | 1x 6-pin | 2x 6-pin |
| Perf/Watt | 33.5+314% | 8.1 |
Value Analysis
The Radeon HD 7870M is the newer GPU (2012 vs 2009).
| Feature | Radeon HD 7870M | Radeon HD 4890 |
|---|---|---|
| MSRP | — | $249 |
| Avg Price (30d) | — | $25 |
| Codename | Heathrow | RV790 |
| Release | April 24 2012 | April 2 2009 |
| Ranking | #765 | #762 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.

















