ATI Radeon HD 4650 vs GeForce 7950 GX2
Aggregate performance score
We've compared GeForce 7950 GX2 and Radeon HD 4650, covering specs and all relevant benchmarks.
ATI HD 4650 outperforms 7950 GX2 by a significant 23% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1280 | 1245 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 0.33 | 0.94 |
| Architecture | Curie (2003−2013) | TeraScale (2005−2013) |
| GPU code name | G71 | RV730 |
| Market segment | Desktop | Desktop |
| Release date | 5 June 2006 (19 years ago) | 10 September 2008 (16 years ago) |
| Launch price (MSRP) | $599 | no data |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
Performance to price scatter graph
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | no data | 320 |
| Core clock speed | 500 MHz | 600 MHz |
| Number of transistors | 278 million | 514 million |
| Manufacturing process technology | 90 nm | 55 nm |
| Power consumption (TDP) | 110 Watt | 48 Watt |
| Texture fill rate | 12.00 ×2 | 19.20 |
| Floating-point processing power | no data | 0.384 TFLOPS |
| ROPs | 16 ×2 | 8 |
| TMUs | 24 ×2 | 32 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Length | 270 mm | 193 mm |
| Width | 2-slot | 1-slot |
| Supplementary power connectors | 1x 6-pin | no data |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR3 | GDDR3 |
| Maximum RAM amount | 512 MB ×2 | 256 MB |
| Memory bus width | 256 Bit ×2 | 128 Bit |
| Memory clock speed | 600 MHz | 700 MHz |
| Memory bandwidth | 38.4 GB/s ×2 | 22.4 GB/s |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | 2x DVI, 1x S-Video | 2x DVI, 1x S-Video |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0c (9_3) | 10.1 (10_1) |
| Shader Model | 3.0 | 4.1 |
| OpenGL | 2.1 | 3.3 |
| OpenCL | N/A | 1.1 |
| Vulkan | N/A | N/A |
Synthetic benchmark performance
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 0.48 | 0.59 |
| Recency | 5 June 2006 | 10 September 2008 |
| Maximum RAM amount | 512 MB | 256 MB |
| Chip lithography | 90 nm | 55 nm |
| Power consumption (TDP) | 110 Watt | 48 Watt |
7950 GX2 has a 100% higher maximum VRAM amount.
ATI HD 4650, on the other hand, has a 22.9% higher aggregate performance score, an age advantage of 2 years, a 63.6% more advanced lithography process, and 129.2% lower power consumption.
The Radeon HD 4650 is our recommended choice as it beats the GeForce 7950 GX2 in performance tests.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
