
FirePro V3900

Radeon R8 M365DX
FirePro V3900 vs Radeon R8 M365DX 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.
FirePro V3900 vs Radeon R8 M365DX 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
FirePro V3900 vs Radeon R8 M365DX: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
FirePro V3900
2011Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 5.3 vs 0 G3D/$ ($119 MSRP vs Unknown MSRP).
- ✅100% more VRAM for high-resolution textures and newer games (1 GB vs 512 MB).
Trade-offs
- ❌2011 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌400% higher power demand at 150W vs 30W.
Radeon R8 M365DX
2015Why buy it
- ✅Draws 30W instead of 150W, a 120W reduction.
- ✅More future proof: GCN 1.0 (2012−2020) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌Less VRAM, with 512 MB vs 1 GB for high-resolution textures and newer games.
- ❌2015 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 5.3 G3D/$ (Unknown MSRP vs $119 MSRP).
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FirePro V3900 vs Radeon R8 M365DX Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

FirePro V3900
The FirePro V3900 is manufactured by AMD. It was released in May 24 2011. It features the TeraScale 3 architecture. The core clock speed is 725 MHz. It has 1280 shading units. The thermal design power (TDP) is 150W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 631 points.

Radeon R8 M365DX
The Radeon R8 M365DX is manufactured by AMD. It was released in May 5 2015. It features the GCN 1.0 architecture. The core clock ranges from 900 MHz to 925 MHz. It has 640 shading units. The thermal design power (TDP) is 30W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 647 points.
Graphics Performance
The FirePro V3900 scores 631 and the Radeon R8 M365DX reaches 647 in the G3D Mark benchmark — just a 2.5% difference, making them near-identical in rasterization performance. The FirePro V3900 is built on TeraScale 3 while the Radeon R8 M365DX uses GCN 1.0, both on 40 nm vs 28 nm. Shader units: 1,280 (FirePro V3900) vs 640 (Radeon R8 M365DX). Raw compute: 1.856 TFLOPS (FirePro V3900) vs 1.184 TFLOPS (Radeon R8 M365DX).
| Feature | FirePro V3900 | Radeon R8 M365DX |
|---|---|---|
| G3D Mark Score | 631 | 647+3% |
| Architecture | TeraScale 3 | GCN 1.0 |
| Process Node | 40 nm | 28 nm |
| Shading Units | 1280+100% | 640 |
| Compute (TFLOPS) | 1.856 TFLOPS+57% | 1.184 TFLOPS |
| ROPs | 32+100% | 16 |
| TMUs | 80+100% | 40 |
| L1 Cache | 320 KB+100% | 160 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | FirePro V3900 | Radeon R8 M365DX |
|---|---|---|
| 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 FirePro V3900 has 1 GB of VRAM, while the Radeon R8 M365DX carries 512 MB. FirePro V3900 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 FirePro V3900 and 64-bit on the Radeon R8 M365DX. L2 Cache: 512 KB (FirePro V3900) vs 256 KB (Radeon R8 M365DX) — the FirePro V3900 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | FirePro V3900 | Radeon R8 M365DX |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 64-bit |
| L2 Cache | 512 KB+100% | 256 KB |
Display & API Support
DirectX support: 11.0 (FirePro V3900) vs 12 (Radeon R8 M365DX). Vulkan: N/A vs 1.2. OpenGL: 4.4 vs 4.6. Maximum simultaneous displays: 2 vs 3.
| Feature | FirePro V3900 | Radeon R8 M365DX |
|---|---|---|
| DirectX | 11.0 | 12+9% |
| Vulkan | N/A | 1.2 |
| OpenGL | 4.4 | 4.6+5% |
| Max Displays | 2 | 3+50% |
Media & Encoding
Hardware encoder: None (FirePro V3900) vs VCE 3.1 (Radeon R8 M365DX). Decoder: UVD 3.0 vs UVD 6.0. Supported codecs: MPEG-2,VC-1,H.264,MPEG-4,MVC (FirePro V3900) vs H.264,HEVC,VP9 (Radeon R8 M365DX).
| Feature | FirePro V3900 | Radeon R8 M365DX |
|---|---|---|
| Encoder | None | VCE 3.1 |
| Decoder | UVD 3.0 | UVD 6.0 |
| Codecs | MPEG-2,VC-1,H.264,MPEG-4,MVC | H.264,HEVC,VP9 |
Power & Dimensions
The FirePro V3900 draws 150W versus the Radeon R8 M365DX's 30W — a 133.3% difference. The Radeon R8 M365DX is more power-efficient. Recommended PSU: 350W (FirePro V3900) vs 350W (Radeon R8 M365DX). Power connectors: PCIe-powered vs PCIe-powered. Typical load temperature: 80 vs 90°C.
| Feature | FirePro V3900 | Radeon R8 M365DX |
|---|---|---|
| TDP | 150W | 30W-80% |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 168mm | — |
| Height | 69mm | — |
| Slots | 1 | — |
| Temp (Load) | 80-11% | 90°C |
| Perf/Watt | 4.2 | 21.6+414% |
Value Analysis
At launch, the FirePro V3900 came in at $119, while the Radeon R8 M365DX launched at $0. On MSRP, Radeon R8 M365DX was 100+% cheaper ($119 less). Performance per dollar on MSRP (G3D Mark / MSRP): 5.3 (FirePro V3900) vs Infinity (Radeon R8 M365DX) — the Radeon R8 M365DX offers Infinity% better value. The newer card here is Radeon R8 M365DX (2015 vs 2011).
| Feature | FirePro V3900 | Radeon R8 M365DX |
|---|---|---|
| MSRP | $119 | $0-100% |
| Performance per Dollar | 5.3 | Infinity |
| Codename | Cayman | Tropo |
| Release | May 24 2011 | May 5 2015 |
| Ranking | #656 | #769 |
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