FireStream 9250 vs GeForce GT 640 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.
FireStream 9250 vs GeForce GT 640 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
FireStream 9250 vs GeForce GT 640: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
FireStream 9250
2008Why buy it
- ✅Competitive enough if your priority is price, power, or specific feature preference.
Trade-offs
- ❌Less VRAM, with 1 GB vs 4 GB for high-resolution textures and newer games.
- ❌2008 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌909.1% HIGHER MSRP$999 MSRPvs$99 MSRP
- ❌Lower G3D Mark per dollar, at 1.2 vs 11.8 G3D/$ ($999 MSRP vs $99 MSRP).
- ❌130.8% higher power demand at 150W vs 65W.
GeForce GT 640
2012Why buy it
- ✅Costs $900 less on MSRP ($99 MSRP vs $999 MSRP).
- ✅Delivers 912.6% more G3D Mark for each dollar spent, at 11.8 vs 1.2 G3D/$ ($99 MSRP vs $999 MSRP).
- ✅300% more VRAM for high-resolution textures and newer games (4 GB vs 1 GB).
- ✅Draws 65W instead of 150W, a 85W reduction.
- ✅Measures 145mm instead of 234mm, a 89mm shorter card that is more SFF-friendly.
Trade-offs
- ❌2012 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Quick Answers
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FireStream 9250 vs GeForce GT 640 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

FireStream 9250
The FireStream 9250 is manufactured by AMD. It was released in June 16 2008. It features the TeraScale architecture. The core clock speed is 625 MHz. It has 800 shading units. The thermal design power (TDP) is 150W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 1,165 points.

GeForce GT 640
The GeForce GT 640 is manufactured by NVIDIA. It was released in June 5 2012. It features the Kepler architecture. The core clock speed is 902 MHz. It has 384 shading units. The thermal design power (TDP) is 65W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,169 points. Launch price was $99.
Graphics Performance
The FireStream 9250 scores 1,165 and the GeForce GT 640 reaches 1,169 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The FireStream 9250 is built on TeraScale while the GeForce GT 640 uses Kepler, both on 55 nm vs 28 nm. Shader units: 800 (FireStream 9250) vs 384 (GeForce GT 640). Raw compute: 1 TFLOPS (FireStream 9250) vs 0.6927 TFLOPS (GeForce GT 640).
| Feature | FireStream 9250 | GeForce GT 640 |
|---|---|---|
| G3D Mark Score | 1,165 | 1,169 |
| Architecture | TeraScale | Kepler |
| Process Node | 55 nm | 28 nm |
| Shading Units | 800+108% | 384 |
| Compute (TFLOPS) | 1 TFLOPS+44% | 0.6927 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 40+25% | 32 |
| L1 Cache | 160 KB+400% | 32 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
The GeForce GT 640 gets NVIDIA DLSS, which still tends to look cleaner in motion. The FireStream 9250 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | FireStream 9250 | GeForce GT 640 |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | NVIDIA Reflex |
Video Memory (VRAM)
The FireStream 9250 has 1 GB of VRAM, while the GeForce GT 640 carries 4 GB. GeForce GT 640 gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the FireStream 9250 and 128-bit on the GeForce GT 640.
| Feature | FireStream 9250 | GeForce GT 640 |
|---|---|---|
| VRAM Capacity | 1 GB | 4 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 256 KB | 256 KB |
Display & API Support
DirectX support: 10.1 (FireStream 9250) vs 11.0 (GeForce GT 640). Vulkan: N/A vs 1.1. OpenGL: 3.3 vs 4.5. Maximum simultaneous displays: 1 vs 3.
| Feature | FireStream 9250 | GeForce GT 640 |
|---|---|---|
| DirectX | 10.1 | 11.0+9% |
| Vulkan | N/A | 1.1 |
| OpenGL | 3.3 | 4.5+36% |
| Max Displays | 1 | 3+200% |
Media & Encoding
Hardware encoder: None (FireStream 9250) vs NVENC 1.0 (GeForce GT 640). Decoder: UVD 2.0 vs PureVideo HD VP5. Supported codecs: H.264,VC-1 (FireStream 9250) vs MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640).
| Feature | FireStream 9250 | GeForce GT 640 |
|---|---|---|
| Encoder | None | NVENC 1.0 |
| Decoder | UVD 2.0 | PureVideo HD VP5 |
| Codecs | H.264,VC-1 | MPEG-2,H.264,VC-1,MPEG-4 ASP |
Power & Dimensions
The FireStream 9250 draws 150W versus the GeForce GT 640's 65W — a 79.1% difference. The GeForce GT 640 is more power-efficient. Recommended PSU: 350W (FireStream 9250) vs 300W (GeForce GT 640). Power connectors: PCIe-powered vs None. Card length: 234mm vs 145mm, occupying 1 vs 1 slots. Typical load temperature: Unknown vs 60°C.
| Feature | FireStream 9250 | GeForce GT 640 |
|---|---|---|
| TDP | 150W | 65W-57% |
| Recommended PSU | 350W | 300W-14% |
| Power Connector | PCIe-powered | None |
| Length | 234mm | 145mm |
| Height | 111mm | 111mm |
| Slots | 1 | 1 |
| Temp (Load) | Unknown-100% | 60°C |
| Perf/Watt | 7.8 | 18.0+131% |
Value Analysis
At launch, the FireStream 9250 came in at $999, while the GeForce GT 640 launched at $99. On MSRP, GeForce GT 640 was 90.1% cheaper ($900 less). Performance per dollar on MSRP (G3D Mark / MSRP): 1.2 (FireStream 9250) vs 11.8 (GeForce GT 640) — the GeForce GT 640 offers 883.3% better value. The newer card here is GeForce GT 640 (2012 vs 2008).
| Feature | FireStream 9250 | GeForce GT 640 |
|---|---|---|
| MSRP | $999 | $99-90% |
| Performance per Dollar | 1.2 | 11.8+883% |
| Codename | RV770 | GK107 |
| Release | June 16 2008 | June 5 2012 |
| Ranking | #840 | #837 |
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