
Radeon HD 6300M

Radeon X1900 GT
Radeon HD 6300M vs Radeon X1900 GT 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 6300M vs Radeon X1900 GT 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 6300M vs Radeon X1900 GT: 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 6300M
2011Why buy it
- ✅100% more VRAM for high-resolution textures and newer games (512 MB vs 256 MB).
- ✅Draws 186W instead of 300W, a 114W reduction.
Trade-offs
- ❌2011 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 0.5 G3D/$ (Unknown MSRP vs $299 MSRP).
Radeon X1900 GT
2022Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 0.5 vs 0 G3D/$ ($299 MSRP vs Unknown MSRP).
- ✅Better long-term bet: RDNA 3.0 (2022−2026) on 5nm gives it a newer hardware base for upcoming games.
- ✅More future proof: RDNA 3.0 (2022−2026) on 5nm with a newer platform for upcoming games.
Trade-offs
- ❌Less VRAM, with 256 MB vs 512 MB for high-resolution textures and newer games.
- ❌61.3% higher power demand at 300W vs 186W.
Quick Answers
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Radeon HD 6300M vs Radeon X1900 GT Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Radeon HD 6300M
The Radeon HD 6300M is manufactured by AMD. It was released in December 1 2011. It features the TeraScale 3 architecture. The core clock speed is 750 MHz. It has 1280 shading units. The thermal design power (TDP) is 186W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 144 points. Launch price was $180.

Radeon X1900 GT
The Radeon X1900 GT is manufactured by AMD. It was released in November 3 2022. It features the RDNA 3.0 architecture. The core clock ranges from 1387 MHz to 2394 MHz. It has 5376 shading units. The thermal design power (TDP) is 300W. Manufactured using 5 nm process technology. It features 84 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 146 points. Launch price was $899.
Graphics Performance
The Radeon HD 6300M scores 144 and the Radeon X1900 GT reaches 146 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The Radeon HD 6300M is built on TeraScale 3 while the Radeon X1900 GT uses RDNA 3.0, both on 40 nm vs 5 nm. Shader units: 1,280 (Radeon HD 6300M) vs 5,376 (Radeon X1900 GT). Raw compute: 1.92 TFLOPS (Radeon HD 6300M) vs 51.48 TFLOPS (Radeon X1900 GT).
| Feature | Radeon HD 6300M | Radeon X1900 GT |
|---|---|---|
| G3D Mark Score | 144 | 146+1% |
| Architecture | TeraScale 3 | RDNA 3.0 |
| Process Node | 40 nm | 5 nm |
| Shading Units | 1280 | 5376+320% |
| Compute (TFLOPS) | 1.92 TFLOPS | 51.48 TFLOPS+2581% |
| ROPs | 32 | 192+500% |
| TMUs | 80 | 336+320% |
| L1 Cache | 0.31 MB | 3 MB+868% |
| L2 Cache | 0.5 MB | 6 MB+1100% |
| Frame Generation | FSR upscaling | FSR upscaling + RSR |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6300M | Radeon X1900 GT |
|---|---|---|
| Upscaling Tech | FSR Upscaling / FSR 4 | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
The Radeon HD 6300M has 512 MB of VRAM, while the Radeon X1900 GT carries 256 MB. Radeon HD 6300M gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is System on the Radeon HD 6300M and 64-bit on the Radeon X1900 GT. L2 Cache: 0.5 MB (Radeon HD 6300M) vs 6 MB (Radeon X1900 GT) — the Radeon X1900 GT has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 6300M | Radeon X1900 GT |
|---|---|---|
| VRAM Capacity | 0.5 GB+100% | 0.25 GB |
| Memory Type | Shared | GDDR5 |
| Bus Width | System | 64-bit |
| L2 Cache | 0.5 MB | 6 MB+1100% |
Power & Dimensions
The Radeon HD 6300M draws 186W versus the Radeon X1900 GT's 300W — a 46.9% difference. The Radeon HD 6300M is more power-efficient. Recommended PSU: 350W (Radeon HD 6300M) vs 350W (Radeon X1900 GT). Power connectors: 1x 6-pin vs PCIe-powered.
| Feature | Radeon HD 6300M | Radeon X1900 GT |
|---|---|---|
| TDP | 186W-38% | 300W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | PCIe-powered |
| Perf/Watt | 0.8+60% | 0.5 |
Value Analysis
The newer card here is Radeon X1900 GT (2022 vs 2011).
| Feature | Radeon HD 6300M | Radeon X1900 GT |
|---|---|---|
| MSRP | — | $299 |
| Codename | Cayman | Navi 31 |
| Release | December 1 2011 | November 3 2022 |
| Ranking | #598 | #21 |
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