RADEON

ATI Radeon HD 4650 AGP

AMD graphics card specifications and benchmark scores

512 MB
VRAM
MHz Boost
48W
TDP
128
Bus Width

ATI Radeon HD 4650 AGP Specifications

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ATI Radeon HD 4650 AGP GPU Core

Shader units and compute resources

The ATI Radeon HD 4650 AGP GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.

Shading Units
320
Shaders
320
TMUs
32
ROPs
8
Compute Units
4
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ATI Radeon HD 4650 AGP Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the ATI Radeon HD 4650 AGP's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The ATI Radeon HD 4650 AGP by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
600 MHz
Memory Clock
400 MHz 800 Mbps effective
GDDR GDDR 6X 6X

AMD's ATI Radeon HD 4650 AGP Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The ATI Radeon HD 4650 AGP's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.

Memory Size
512 MB
VRAM
512 MB
Memory Type
DDR2
VRAM Type
DDR2
Memory Bus
128 bit
Bus Width
128-bit
Bandwidth
12.80 GB/s
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ATI Radeon HD 4650 AGP by AMD Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the ATI Radeon HD 4650 AGP, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.

L1 Cache
16 KB (per CU)
L2 Cache
128 KB
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ATI Radeon HD 4650 AGP Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the ATI Radeon HD 4650 AGP against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.

FP32 (Float)
384.0 GFLOPS
Pixel Rate
4.800 GPixel/s
Texture Rate
19.20 GTexel/s
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TeraScale Architecture & Process

Manufacturing and design details

The ATI Radeon HD 4650 AGP is built on AMD's TeraScale architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the ATI Radeon HD 4650 AGP will perform in GPU benchmarks compared to previous generations.

Architecture
TeraScale
GPU Name
RV730
Process Node
55 nm
Foundry
TSMC
Transistors
514 million
Die Size
146 mm²
Density
3.5M / mm²
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AMD's ATI Radeon HD 4650 AGP Power & Thermal

TDP and power requirements

Power specifications for the ATI Radeon HD 4650 AGP determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the ATI Radeon HD 4650 AGP to maintain boost clocks without throttling.

TDP
48 W
TDP
48W
Power Connectors
None
Suggested PSU
200 W
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ATI Radeon HD 4650 AGP by AMD Physical & Connectivity

Dimensions and outputs

Physical dimensions of the ATI Radeon HD 4650 AGP are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.

Slot Width
Single-slot
Bus Interface
AGP 8x
Display Outputs
1x DVI1x HDMI 1.3a1x VGA
Display Outputs
1x DVI1x HDMI 1.3a1x VGA
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AMD API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the ATI Radeon HD 4650 AGP. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.

DirectX
10.1 (10_1)
DirectX
10.1 (10_1)
OpenGL
3.3
OpenGL
3.3
OpenCL
1.1
Shader Model
4.1
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ATI Radeon HD 4650 AGP Product Information

Release and pricing details

The ATI Radeon HD 4650 AGP is manufactured by AMD as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the ATI Radeon HD 4650 AGP by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
AMD
Release Date
Sep 2008
Production
End-of-life
Predecessor
Radeon R600
Successor
Evergreen

ATI Radeon HD 4650 AGP Benchmark Scores

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No benchmark data available for this GPU.

About ATI Radeon HD 4650 AGP

When you’re hunting for a budget card that still feels relevant, the ATI Radeon HD 4650 AGP often pops up in discussions. But does its price really match the performance you get out of the box? The 512 MB of DDR2 memory is modest, yet it can handle older titles without breaking a sweat. If you’re comparing it to newer PCIe options, the price-to-performance ratio looks surprisingly uneven. Still, some sellers list it at a bargain price that might catch your eye. So, is the ATI Radeon HD 4650 AGP a smart pick for a retro build?

You might wonder how it stacks up against the GeForce 8500 GT or the Radeon HD 5450 that arrived just a year later. Those cards offered higher clock speeds and better driver support, but they also carried a slightly higher price tag. For gamers who only needed 720p playback or light 3D workloads, the ATI Radeon HD 4650 AGP was still a viable contender. However, the newer architectures introduced features like DirectX 11 support that the older TeraScale chip lacked. So, which alternative gives you more bang for your buck in 2025? The ATI Radeon HD 4650 AGP still holds its ground in niche retro builds, but the competition is definitely more feature‑rich.

Investors in vintage hardware often ask whether a card like the ATI Radeon HD 4650 AGP will appreciate over time. Because it’s tied to a specific era of AMD’s product line, its scarcity can drive up demand among collectors. Yet the market for AGP‑only motherboards is shrinking, which limits its resale potential. If you’re buying it solely as a collector’s item, the price might be justified, but for active use it’s a risky bet. So, does the ATI Radeon HD 4650 AGP offer any real long‑term value beyond nostalgia?

Before you slot the ATI Radeon HD 4650 AGP into a rig, check that your motherboard still sports an AGP 8x slot. The card requires a 48‑W power draw, so a modest PSU can usually handle it without upgrades. You’ll also need a compatible driver set, as modern OSes sometimes struggle with legacy AGP drivers. Memory bandwidth is limited by the DDR2 interface, which can bottleneck higher‑resolution textures. If your case has enough space, the card’s passive cooling might be a plus for silent builds. Finally, verify that your

The NVIDIA Equivalent of ATI Radeon HD 4650 AGP

Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce RTX 2080 offers comparable performance and features in the NVIDIA lineup.

NVIDIA GeForce RTX 2080

NVIDIA • 8 GB VRAM

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