
P102-100

Radeon HD 6990M
P102-100 vs Radeon HD 6990M 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.
P102-100 vs Radeon HD 6990M 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
P102-100 vs Radeon HD 6990M: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
P102-100
2018Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 5.5 vs 0 G3D/$ ($600 MSRP vs Unknown MSRP).
- ✅Radeon HD 6990M is already obsolete for modern gaming, so P102-100 is the less risky modern option long term.
- ✅More future proof: Pascal (2016−2021) on 16nm with a newer platform for upcoming games.
Trade-offs
- ❌2018 hardware with 2 GB of VRAM already sits in legacy territory for modern games.
- ❌150% higher power demand at 250W vs 100W.
Radeon HD 6990M
2011Why buy it
- ✅Draws 100W instead of 250W, a 150W reduction.
Trade-offs
- ❌2011 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 5.5 G3D/$ (Unknown MSRP vs $600 MSRP).
Quick Answers
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P102-100 vs Radeon HD 6990M Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

P102-100
The P102-100 is manufactured by NVIDIA. It was released in February 12 2018. It features the Pascal architecture. The core clock ranges from 1582 MHz to 1683 MHz. It has 3200 shading units. The thermal design power (TDP) is 250W. Manufactured using 16 nm process technology. G3D Mark benchmark score: 3,301 points. Launch price was $599.

Radeon HD 6990M
The Radeon HD 6990M is manufactured by AMD. It was released in July 12 2011. It features the TeraScale 2 architecture. The core clock speed is 715 MHz. It has 1120 shading units. The thermal design power (TDP) is 100W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,264 points.
Graphics Performance
The P102-100 scores 3,301 and the Radeon HD 6990M reaches 3,264 in the G3D Mark benchmark — just a 1.1% difference, making them near-identical in rasterization performance. The P102-100 is built on Pascal while the Radeon HD 6990M uses TeraScale 2, both on 16 nm vs 40 nm. Shader units: 3,200 (P102-100) vs 1,120 (Radeon HD 6990M). Raw compute: 10.77 TFLOPS (P102-100) vs 1.602 TFLOPS (Radeon HD 6990M).
| Feature | P102-100 | Radeon HD 6990M |
|---|---|---|
| G3D Mark Score | 3,301+1% | 3,264 |
| Architecture | Pascal | TeraScale 2 |
| Process Node | 16 nm | 40 nm |
| Shading Units | 3200+186% | 1120 |
| Compute (TFLOPS) | 10.77 TFLOPS+572% | 1.602 TFLOPS |
| ROPs | 80+150% | 32 |
| TMUs | 200+257% | 56 |
| L1 Cache | 1.2 MB+445% | 0.22 MB |
| L2 Cache | 2.5 MB+400% | 0.5 MB |
Advanced Features (DLSS/FSR)
| Feature | P102-100 | Radeon HD 6990M |
|---|---|---|
| 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)
Both cards ship with 2 GB of video memory. Memory bus width is 64-bit on the P102-100 and System on the Radeon HD 6990M. L2 Cache: 2.5 MB (P102-100) vs 0.5 MB (Radeon HD 6990M) — the P102-100 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | P102-100 | Radeon HD 6990M |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | GDDR5 | Shared |
| Bus Width | 64-bit | System |
| L2 Cache | 2.5 MB+400% | 0.5 MB |
Power & Dimensions
The P102-100 draws 250W versus the Radeon HD 6990M's 100W — a 85.7% difference. The Radeon HD 6990M is more power-efficient. Recommended PSU: 350W (P102-100) vs 350W (Radeon HD 6990M). Power connectors: PCIe-powered vs 1x 6-pin.
| Feature | P102-100 | Radeon HD 6990M |
|---|---|---|
| TDP | 250W | 100W-60% |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | 1x 6-pin |
| Length | 267mm | — |
| Slots | 2 | — |
| Perf/Watt | 13.2 | 32.6+147% |
Value Analysis
The newer card here is P102-100 (2018 vs 2011).
| Feature | P102-100 | Radeon HD 6990M |
|---|---|---|
| MSRP | $600 | — |
| Codename | GP102 | Blackcomb |
| Release | February 12 2018 | July 12 2011 |
| Ranking | #560 | #691 |
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