
GeForce 705M

Radeon HD 7640G
GeForce 705M vs Radeon HD 7640G 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.
GeForce 705M vs Radeon HD 7640G 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
GeForce 705M vs Radeon HD 7640G: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce 705M
2015Why buy it
- ✅41.9% more average FPS across 50 tracked games in our benchmark data.
- ✅More future proof: Maxwell (2014−2017) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌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 9.1 G3D/$ (Unknown MSRP vs $50 MSRP).
- ❌66.7% higher power demand at 75W vs 45W.
Radeon HD 7640G
2012Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 9.1 vs 0 G3D/$ ($50 MSRP vs Unknown MSRP).
- ✅Draws 45W instead of 75W, a 30W reduction.
Trade-offs
- ❌Lower average FPS than GeForce 705M across 50 tracked games in our benchmark data.
- ❌2012 hardware with 512 MB 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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GeForce 705M vs Radeon HD 7640G Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 705M
The GeForce 705M is manufactured by NVIDIA. It was released in October 27 2015. It features the Maxwell architecture. The core clock ranges from 928 MHz to 1020 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 456 points.

Radeon HD 7640G
The Radeon HD 7640G is manufactured by AMD. It was released in January 5 2012. It features the TeraScale 2 architecture. The core clock speed is 600 MHz. It has 480 shading units. The thermal design power (TDP) is 45W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 454 points.
Graphics Performance
The GeForce 705M scores 456 and the Radeon HD 7640G reaches 454 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The GeForce 705M is built on Maxwell while the Radeon HD 7640G uses TeraScale 2, both on 28 nm vs 40 nm. Shader units: 640 (GeForce 705M) vs 480 (Radeon HD 7640G). Raw compute: 1.306 TFLOPS (GeForce 705M) vs 0.576 TFLOPS (Radeon HD 7640G).
| Feature | GeForce 705M | Radeon HD 7640G |
|---|---|---|
| G3D Mark Score | 456 | 454 |
| Architecture | Maxwell | TeraScale 2 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 640+33% | 480 |
| Compute (TFLOPS) | 1.306 TFLOPS+127% | 0.576 TFLOPS |
| ROPs | 16+100% | 8 |
| TMUs | 40+67% | 24 |
| L1 Cache | 320 KB+567% | 48 KB |
| L2 Cache | 2 MB+700% | 0.25 MB |
Advanced Features (DLSS/FSR)
The GeForce 705M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon HD 7640G leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce 705M | Radeon HD 7640G |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
Both cards ship with 512 MB of GDDR5. Memory bus width is 128-bit on the GeForce 705M and 128-bit on the Radeon HD 7640G. L2 Cache: 2 MB (GeForce 705M) vs 0.25 MB (Radeon HD 7640G) — the GeForce 705M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 705M | Radeon HD 7640G |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 2 MB+700% | 0.25 MB |
Display & API Support
DirectX support: 11.0 (GeForce 705M) vs 11 (11_0) (Radeon HD 7640G). OpenGL: 4.1 vs 4.4. Maximum simultaneous displays: 2 vs 2.
| Feature | GeForce 705M | Radeon HD 7640G |
|---|---|---|
| DirectX | 11.0 | 11 (11_0) |
| OpenGL | 4.1 | 4.4+7% |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: No (GeForce 705M) vs VCE 1.0 (Radeon HD 7640G). Decoder: PureVideo HD VP4 vs UVD 3.2. Supported codecs: H.264,VC-1,MPEG-2 (GeForce 705M) vs H.264,VC-1,MPEG-2,DivX (Radeon HD 7640G).
| Feature | GeForce 705M | Radeon HD 7640G |
|---|---|---|
| Encoder | No | VCE 1.0 |
| Decoder | PureVideo HD VP4 | UVD 3.2 |
| Codecs | H.264,VC-1,MPEG-2 | H.264,VC-1,MPEG-2,DivX |
Power & Dimensions
The GeForce 705M draws 75W versus the Radeon HD 7640G's 45W — a 50% difference. The Radeon HD 7640G is more power-efficient. Recommended PSU: 350W (GeForce 705M) vs 350W (Radeon HD 7640G). Power connectors: Legacy vs 1x 6-pin. Typical load temperature: 80°C vs 70°C.
| Feature | GeForce 705M | Radeon HD 7640G |
|---|---|---|
| TDP | 75W | 45W-40% |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | 1x 6-pin |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | 0 |
| Temp (Load) | 80°C | 70°C-13% |
| Perf/Watt | 6.1 | 10.1+66% |
Value Analysis
The newer card here is GeForce 705M (2015 vs 2012).
| Feature | GeForce 705M | Radeon HD 7640G |
|---|---|---|
| MSRP | — | $50 |
| Codename | GM107 | Turks |
| Release | October 27 2015 | January 5 2012 |
| Ranking | #671 | #870 |
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