
FirePro W5100

Radeon HD 6990
FirePro W5100 vs Radeon HD 6990 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 W5100 vs Radeon HD 6990 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 W5100 vs Radeon HD 6990: 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 W5100
2014Why buy it
- ✅Costs $300 less on MSRP ($399 MSRP vs $699 MSRP).
- ✅Delivers 73.6% more G3D Mark for each dollar spent, at 7.5 vs 4.3 G3D/$ ($399 MSRP vs $699 MSRP).
- ✅100% more VRAM for high-resolution textures and newer games (4 GB vs 2 GB).
- ✅Draws 50W instead of 375W, a 325W reduction.
- ✅Measures 173mm instead of 310mm, a 137mm shorter card that is more SFF-friendly.
Trade-offs
- ❌2014 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Radeon HD 6990
2011Why buy it
- ✅FirePro W5100 is already obsolete for modern gaming, so Radeon HD 6990 is the less risky modern option long term.
Trade-offs
- ❌Less VRAM, with 2 GB vs 4 GB for high-resolution textures and newer games.
- ❌2011 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌75.2% HIGHER MSRP$699 MSRPvs$399 MSRP
- ❌Lower G3D Mark per dollar, at 4.3 vs 7.5 G3D/$ ($699 MSRP vs $399 MSRP).
- ❌650% higher power demand at 375W vs 50W.
Quick Answers
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FirePro W5100 vs Radeon HD 6990 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

FirePro W5100
The FirePro W5100 is manufactured by AMD. It was released in March 31 2014. It features the GCN 2.0 architecture. The core clock speed is 930 MHz. It has 768 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,987 points.

Radeon HD 6990
The Radeon HD 6990 is manufactured by AMD. It was released in March 8 2011. It features the TeraScale 3 architecture. The core clock speed is 830 MHz. It has 1536 ×2 shading units. The thermal design power (TDP) is 375W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,014 points. Launch price was $699.
Graphics Performance
The FirePro W5100 scores 2,987 and the Radeon HD 6990 reaches 3,014 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The FirePro W5100 is built on GCN 2.0 while the Radeon HD 6990 uses TeraScale 3, both on 28 nm vs 40 nm. Shader units: 768 (FirePro W5100) vs 1,536 (Radeon HD 6990). Raw compute: 1.428 TFLOPS (FirePro W5100) vs 2.55 TFLOPS ×2 (Radeon HD 6990).
| Feature | FirePro W5100 | Radeon HD 6990 |
|---|---|---|
| G3D Mark Score | 2,987 | 3,014 |
| Architecture | GCN 2.0 | TeraScale 3 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 768 | 1536 ×2+100% |
| Compute (TFLOPS) | 1.428 TFLOPS | 2.55 TFLOPS ×2+79% |
| ROPs | 16 | 32 ×2+100% |
| TMUs | 48 | 96 ×2+100% |
| L1 Cache | 192 KB | 384 KB+100% |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | FirePro W5100 | Radeon HD 6990 |
|---|---|---|
| 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 W5100 has 4 GB of VRAM, while the Radeon HD 6990 carries 2 GB. FirePro W5100 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 W5100 and 128-bit on the Radeon HD 6990. L2 Cache: 256 KB (FirePro W5100) vs 512 KB (Radeon HD 6990) — the Radeon HD 6990 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | FirePro W5100 | Radeon HD 6990 |
|---|---|---|
| VRAM Capacity | 4 GB+100% | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 256 KB | 512 KB+100% |
Display & API Support
DirectX support: 12 (FirePro W5100) vs 11.2 (Radeon HD 6990). Vulkan: 1.2.170 vs None. OpenGL: 4.6 vs 4.4. Maximum simultaneous displays: 6 vs 5.
| Feature | FirePro W5100 | Radeon HD 6990 |
|---|---|---|
| DirectX | 12+7% | 11.2 |
| Vulkan | 1.2.170 | None |
| OpenGL | 4.6+5% | 4.4 |
| Max Displays | 6+20% | 5 |
Media & Encoding
Hardware encoder: VCE 2.0 (FirePro W5100) vs None (Radeon HD 6990). Decoder: UVD 4.2 vs UVD 3.0. Supported codecs: H.264,MPEG-2,VC-1 (FirePro W5100) vs H.264,VC-1,MPEG-2,MPEG-4 (Radeon HD 6990).
| Feature | FirePro W5100 | Radeon HD 6990 |
|---|---|---|
| Encoder | VCE 2.0 | None |
| Decoder | UVD 4.2 | UVD 3.0 |
| Codecs | H.264,MPEG-2,VC-1 | H.264,VC-1,MPEG-2,MPEG-4 |
Power & Dimensions
The FirePro W5100 draws 50W versus the Radeon HD 6990's 375W — a 152.9% difference. The FirePro W5100 is more power-efficient. Recommended PSU: 350W (FirePro W5100) vs 750W (Radeon HD 6990). Power connectors: PCIe-powered vs 2x 8-pin. Card length: 173mm vs 310mm, occupying 1 vs 2 slots. Typical load temperature: 70°C vs 85.
| Feature | FirePro W5100 | Radeon HD 6990 |
|---|---|---|
| TDP | 50W-87% | 375W |
| Recommended PSU | 350W-53% | 750W |
| Power Connector | PCIe-powered | 2x 8-pin |
| Length | 173mm | 310mm |
| Height | 111mm | 115mm |
| Slots | 1-50% | 2 |
| Temp (Load) | 70°C-18% | 85 |
| Perf/Watt | 59.7+646% | 8.0 |
Value Analysis
At launch, the FirePro W5100 came in at $399, while the Radeon HD 6990 launched at $699. On MSRP, FirePro W5100 was 42.9% cheaper ($300 less). Performance per dollar on MSRP (G3D Mark / MSRP): 7.5 (FirePro W5100) vs 4.3 (Radeon HD 6990) — the FirePro W5100 offers 74.4% better value. The newer card here is FirePro W5100 (2014 vs 2011).
| Feature | FirePro W5100 | Radeon HD 6990 |
|---|---|---|
| MSRP | $399-43% | $699 |
| Performance per Dollar | 7.5+74% | 4.3 |
| Codename | Bonaire | Antilles |
| Release | March 31 2014 | March 8 2011 |
| Ranking | #582 | #583 |
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