
Radeon HD 8990

Radeon RX 6300
Radeon HD 8990 vs Radeon RX 6300 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.
Radeon HD 8990 vs Radeon RX 6300 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

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
Radeon HD 8990 vs Radeon RX 6300: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
Radeon HD 8990
2013Why buy it
- ✅19.6% more average FPS across 50 tracked games in our benchmark data.
Trade-offs
- ❌Less VRAM, with 3 GB vs 4 GB for high-resolution textures and newer games.
- ❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
- ❌2013 hardware with 3 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌1565% HIGHER MSRP$999 MSRPvs$60 MSRP
- ❌Lower G3D Mark per dollar, at 5.2 vs 88.7 G3D/$ ($999 MSRP vs $60 MSRP).
Radeon RX 6300
2022Why buy it
- ✅Costs $939 less on MSRP ($60 MSRP vs $999 MSRP).
- ✅Delivers 1598.5% more G3D Mark for each dollar spent, at 88.7 vs 5.2 G3D/$ ($60 MSRP vs $999 MSRP).
- ✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
- ✅33.3% more VRAM for high-resolution textures and newer games (4 GB vs 3 GB).
- ✅Better long-term bet: RDNA 2.0 (2020−2025) on 6nm gives it a newer hardware base for upcoming games.
Trade-offs
- ❌Lower average FPS than Radeon HD 8990 across 50 tracked games in our benchmark data.
Quick Answers
Which GPU is faster for gaming right now?
Which GPU is the safer long-term pick for 2026 and beyond?
Which GPU is the better buy today?
Radeon HD 8990 vs Radeon RX 6300 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Radeon HD 8990
The Radeon HD 8990 is manufactured by AMD. It was released in April 24 2013. It features the GCN 1.0 architecture. The core clock ranges from 950 MHz to 1000 MHz. It has 2048 ×2 shading units. The thermal design power (TDP) is 375W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 5,214 points. Launch price was $999.

Radeon RX 6300
The Radeon RX 6300 is manufactured by AMD. It was released in January 4 2022. It features the RDNA 2.0 architecture. The core clock ranges from 2000 MHz to 2400 MHz. It has 768 shading units. The thermal design power (TDP) is 35W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 5,319 points.
Graphics Performance
The Radeon HD 8990 scores 5,214 and the Radeon RX 6300 reaches 5,319 in the G3D Mark benchmark — just a 2% difference, making them near-identical in rasterization performance. The Radeon HD 8990 is built on GCN 1.0 while the Radeon RX 6300 uses RDNA 2.0, both on 28 nm vs 6 nm. Shader units: 2,048 (Radeon HD 8990) vs 768 (Radeon RX 6300). Raw compute: 4.096 TFLOPS ×2 (Radeon HD 8990) vs 3.686 TFLOPS (Radeon RX 6300). Boost clocks: 1000 MHz vs 2400 MHz.
| Feature | Radeon HD 8990 | Radeon RX 6300 |
|---|---|---|
| G3D Mark Score | 5,214 | 5,319+2% |
| Architecture | GCN 1.0 | RDNA 2.0 |
| Process Node | 28 nm | 6 nm |
| Shading Units | 2048 ×2+167% | 768 |
| Compute (TFLOPS) | 4.096 TFLOPS ×2+11% | 3.686 TFLOPS |
| Boost Clock | 1000 MHz | 2400 MHz+140% |
| ROPs | 32 ×2 | 32 |
| TMUs | 128 ×2+167% | 48 |
| L1 Cache | 512 KB+100% | 256 KB |
| L2 Cache | 0.75 MB | 1 MB+33% |
| Frame Generation | FSR upscaling | FSR 3 + AFMF |
Advanced Features (DLSS/FSR)
The clearest feature edge for the Radeon RX 6300 is support for FSR Frame Generation + AFMF. In games that support it, that can smooth out motion and lift perceived FPS. The Radeon HD 8990 does not have comparable native support in the same tier.
| Feature | Radeon HD 8990 | Radeon RX 6300 |
|---|---|---|
| Upscaling Tech | FSR Upscaling / FSR 4 | FSR 3 |
| Frame Generation | Not Supported | FSR Frame Generation + AFMF |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
The Radeon HD 8990 has 3 GB of VRAM, while the Radeon RX 6300 carries 4 GB. Radeon RX 6300 gives you 33.3% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bandwidth: 288 GB/s x2 (Radeon HD 8990) vs 64 GB/s (Radeon RX 6300) — a 4403.1% advantage for the Radeon HD 8990. Memory bus width is 384-bit x2 on the Radeon HD 8990 and 32-bit on the Radeon RX 6300. L2 Cache: 0.75 MB (Radeon HD 8990) vs 1 MB (Radeon RX 6300) — the Radeon RX 6300 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 8990 | Radeon RX 6300 |
|---|---|---|
| VRAM Capacity | 3 GB | 4 GB+33% |
| Memory Type | GDDR5 | GDDR6 |
| Memory Bandwidth | 288 GB/s x2+350% | 64 GB/s |
| Bus Width | 384-bit x2+1100% | 32-bit |
| L2 Cache | 0.75 MB | 1 MB+33% |
Power & Dimensions
The Radeon HD 8990 draws 375W versus the Radeon RX 6300's 35W — a 165.9% difference. The Radeon RX 6300 is more power-efficient. Recommended PSU: 750W (Radeon HD 8990) vs 300W (Radeon RX 6300). Power connectors: 2x 8-pin vs PCIe-powered.
| Feature | Radeon HD 8990 | Radeon RX 6300 |
|---|---|---|
| TDP | 375W | 35W-91% |
| Recommended PSU | 750W | 300W-60% |
| Power Connector | 2x 8-pin | PCIe-powered |
| Length | — | 160mm |
| Slots | — | 1 |
| Perf/Watt | 13.9 | 152.0+994% |
Value Analysis
At launch, the Radeon HD 8990 came in at $999, while the Radeon RX 6300 launched at $60. On MSRP, Radeon RX 6300 was 94% cheaper ($939 less). Performance per dollar on MSRP (G3D Mark / MSRP): 5.2 (Radeon HD 8990) vs 88.7 (Radeon RX 6300) — the Radeon RX 6300 offers 1605.8% better value. The newer card here is Radeon RX 6300 (2022 vs 2013).
| Feature | Radeon HD 8990 | Radeon RX 6300 |
|---|---|---|
| MSRP | $999 | $60-94% |
| Performance per Dollar | 5.2 | 88.7+1606% |
| Codename | Malta | Navi 24 |
| Release | April 24 2013 | January 4 2022 |
| Ranking | #412 | #379 |
Affiliate Disclosure
ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.
Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.















