Radeon Pro 455 vs Radeon HD 7790

Radeon Pro 455

2016Core: 855 MHz

Radeon HD 7790

2013Core: 1000 MHz

Performance Spectrum - GPU

Radeon Pro 455

3,113

+0.7%

3,090

0.0%

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

Based on actual market prices and performance benchmarks.

Performance Per Dollar

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The Radeon Pro 455 is the superior choice for raw performance. It leads with a 0.7% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7790.

Insight	Radeon Pro 455	Radeon HD 7790
Performance	✅Leading raw performance (+0.7%)	❌Lower raw frame rates (-0.7%)
Longevity	🛑Obsolete Architecture (2016 / GCN 4.0 (2016−2020))	🛑Obsolete Architecture (2013 / GCN 2.0 (2013−2017))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+0%)
Efficiency	💡 Excellent Perf/Watt	⚡ Higher Power Consumption
Case Fit	📏 Compact / SFF Friendly	📏 Compact / SFF Friendly

💎 Value Proposition

The Radeon Pro 455 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon Pro 455 holds the technical lead. Priced at $40 (vs $40), it costs 0% less, resulting in a 0.7% higher cost efficiency score.

Insight	Radeon Pro 455	Radeon HD 7790
Cost Efficiency	✅Better overall value (+0.7%)	❌Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

Performance Check

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

Radeon Pro 455 Benchmark Check

Radeon HD 7790 Benchmark Check

Technical Specifications

Side-by-side comparison of Radeon Pro 455 and Radeon HD 7790

Radeon Pro 455

The Radeon Pro 455 is manufactured by AMD. It was released in October 30 2016. It features the GCN 4.0 architecture. The core clock speed is 855 MHz. It has 768 shading units. The thermal design power (TDP) is 35W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 3,113 points.

Radeon HD 7790

The Radeon HD 7790 is manufactured by AMD. It was released in March 22 2013. It features the GCN 2.0 architecture. The core clock speed is 1000 MHz. It has 896 shading units. The thermal design power (TDP) is 85W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,090 points. Launch price was $149.

⚡

Graphics Performance

The Radeon Pro 455 scores 3,113 and the Radeon HD 7790 reaches 3,090 in the G3D Mark benchmark — just a 0.7% difference, making them near-identical in rasterization performance. The Radeon Pro 455 is built on GCN 4.0 while the Radeon HD 7790 uses GCN 2.0, both on 14 nm vs 28 nm. Shader units: 768 (Radeon Pro 455) vs 896 (Radeon HD 7790). Raw compute: 1.313 TFLOPS (Radeon Pro 455) vs 1.792 TFLOPS (Radeon HD 7790).

Feature	Radeon Pro 455	Radeon HD 7790
G3D Mark Score	3,113	3,090
Architecture	GCN 4.0	GCN 2.0
Process Node	14 nm	28 nm
Shading Units	768	896+17%
Compute (TFLOPS)	1.313 TFLOPS	1.792 TFLOPS+36%
ROPs	16	16
TMUs	48	56+17%
L1 Cache	192 KB	224 KB+17%
L2 Cache	1 MB+300%	0.25 MB

✨

Advanced Features (DLSS/FSR)

Feature	Radeon Pro 455	Radeon HD 7790
Upscaling Tech	FSR 1.0 (Software)	FSR 1.0 (Software)
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards feature 2 GB of GDDR5. Bus width: 64-bit vs 128-bit. L2 Cache: 1 MB (Radeon Pro 455) vs 0.25 MB (Radeon HD 7790) — the Radeon Pro 455 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon Pro 455	Radeon HD 7790
VRAM Capacity	2 GB	2 GB
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	128-bit+100%
L2 Cache	1 MB+300%	0.25 MB

🖥️

Display & API Support

DirectX support: 12_0 (Radeon Pro 455) vs 12 (12_0) (Radeon HD 7790). Maximum simultaneous displays: 0 vs 5.

Feature	Radeon Pro 455	Radeon HD 7790
DirectX	12_0	12 (12_0)
Max Displays	0	5

🎬

Media & Encoding

Hardware encoder: VCE 3.4 (Radeon Pro 455) vs VCE 2.0 (Radeon HD 7790). Decoder: UVD 6.3 vs UVD 4.2.

Feature	Radeon Pro 455	Radeon HD 7790
Encoder	VCE 3.4	VCE 2.0
Decoder	UVD 6.3	UVD 4.2
Codecs	—	H.264,VC-1,MPEG-2,MPEG-4

🔌

Power & Dimensions

The Radeon Pro 455 draws 35W versus the Radeon HD 7790's 85W — a 83.3% difference. The Radeon Pro 455 is more power-efficient. Recommended PSU: 350W (Radeon Pro 455) vs 400W (Radeon HD 7790). Power connectors: PCIe-powered vs 1x 6-pin. Card length: 1mm vs 183mm, occupying 0 vs 2 slots.

Feature	Radeon Pro 455	Radeon HD 7790
TDP	35W-59%	85W
Recommended PSU	350W-13%	400W
Power Connector	PCIe-powered	1x 6-pin
Length	1mm	183mm
Height	—	111mm
Slots	0-100%	2
Temp (Load)	—	70
Perf/Watt	88.9+144%	36.4

💰

Value Analysis

The Radeon Pro 455 launched at $0 MSRP and currently averages $40, while the Radeon HD 7790 launched at $149 and now averages $40. Performance per dollar (G3D Mark / price): 77.8 (Radeon Pro 455) vs 77.3 (Radeon HD 7790) — the Radeon Pro 455 offers 0.6% better value. The Radeon Pro 455 is the newer GPU (2016 vs 2013).