Radeon HD 8990 vs Radeon RX 6300

AMD

Radeon HD 8990

2013Core: 950 MHzBoost: 1000 MHz
Similar parts
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VS
AMD

Radeon RX 6300

2022Core: 2000 MHzBoost: 2400 MHz
RX family
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Radeon HD 8990 vs Radeon RX 6300 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.

Radeon HD 8990 vs Radeon RX 6300 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.

Radeon HD 8990 vs Radeon RX 6300: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

Radeon HD 8990

2013

Why buy it

  • 19.6% more average FPS across 50 tracked games in our benchmark data.

Trade-offs

  • Less VRAM, with 3 GB vs 4 GB for high-resolution textures and newer games.
  • No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
  • 2013 hardware with 3 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
  • 1565% HIGHER MSRP
    $999 MSRPvs$60 MSRP
  • Lower G3D Mark per dollar, at 5.2 vs 88.7 G3D/$ ($999 MSRP vs $60 MSRP).

Radeon RX 6300

2022

Why buy it

  • Costs $939 less on MSRP ($60 MSRP vs $999 MSRP).
  • Delivers 1598.5% more G3D Mark for each dollar spent, at 88.7 vs 5.2 G3D/$ ($60 MSRP vs $999 MSRP).
  • Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
  • 33.3% more VRAM for high-resolution textures and newer games (4 GB vs 3 GB).
  • Better long-term bet: RDNA 2.0 (2020−2025) on 6nm gives it a newer hardware base for upcoming games.

Trade-offs

  • Lower average FPS than Radeon HD 8990 across 50 tracked games in our benchmark data.

Quick Answers

Which GPU is faster for gaming right now?
Radeon HD 8990 is the faster gaming card right now. In our data, it leads by 19.6% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Radeon RX 6300 instead at 5,319 vs 5,214, so for this question the real-game FPS result matters more than the synthetic split.
Which GPU is the safer long-term pick for 2026 and beyond?
Radeon RX 6300 is the safer long-term pick for 2026 and beyond. The case is simple: 4 GB vs 3 GB of VRAM, native frame generation with FSR Frame Generation + AFMF (2023), while Radeon HD 8990 has no comparable frame-generation support, a 6nm process instead of 28nm, and 12 vs 0 ray-tracing units. That gives it more room for heavier textures and higher settings over time.
Which GPU is the better buy today?
Radeon RX 6300 makes the most sense to buy today. It is $939 cheaper on MSRP at $60 vs $999, and it leads G3D-per-dollar by 1598.5% (88.7 vs 5.2), which is enough to swing the recommendation its way. Radeon HD 8990 still makes more sense if max raw gaming performance matters more than value.

Radeon HD 8990 vs Radeon RX 6300 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

AMD

Radeon HD 8990

The Radeon HD 8990 is manufactured by AMD. It was released in April 24 2013. It features the GCN 1.0 architecture. The core clock ranges from 950 MHz to 1000 MHz. It has 2048 ×2 shading units. The thermal design power (TDP) is 375W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 5,214 points. Launch price was $999.

AMD

Radeon RX 6300

The Radeon RX 6300 is manufactured by AMD. It was released in January 4 2022. It features the RDNA 2.0 architecture. The core clock ranges from 2000 MHz to 2400 MHz. It has 768 shading units. The thermal design power (TDP) is 35W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 5,319 points.

Graphics Performance

The Radeon HD 8990 scores 5,214 and the Radeon RX 6300 reaches 5,319 in the G3D Mark benchmark — just a 2% difference, making them near-identical in rasterization performance. The Radeon HD 8990 is built on GCN 1.0 while the Radeon RX 6300 uses RDNA 2.0, both on 28 nm vs 6 nm. Shader units: 2,048 (Radeon HD 8990) vs 768 (Radeon RX 6300). Raw compute: 4.096 TFLOPS ×2 (Radeon HD 8990) vs 3.686 TFLOPS (Radeon RX 6300). Boost clocks: 1000 MHz vs 2400 MHz.

FeatureRadeon HD 8990Radeon RX 6300
G3D Mark Score
5,214
5,319+2%
Architecture
GCN 1.0
RDNA 2.0
Process Node
28 nm
6 nm
Shading Units
2048 ×2+167%
768
Compute (TFLOPS)
4.096 TFLOPS ×2+11%
3.686 TFLOPS
Boost Clock
1000 MHz
2400 MHz+140%
ROPs
32 ×2
32
TMUs
128 ×2+167%
48
L1 Cache
512 KB+100%
256 KB
L2 Cache
0.75 MB
1 MB+33%
Frame Generation
FSR upscaling
FSR 3 + AFMF

Advanced Features (DLSS/FSR)

The clearest feature edge for the Radeon RX 6300 is support for FSR Frame Generation + AFMF. In games that support it, that can smooth out motion and lift perceived FPS. The Radeon HD 8990 does not have comparable native support in the same tier.

FeatureRadeon HD 8990Radeon RX 6300
Upscaling Tech
FSR Upscaling / FSR 4
FSR 3
Frame Generation
Not Supported
FSR Frame Generation + AFMF
Ray Reconstruction
No
No
Low Latency
AMD Anti-Lag
AMD Anti-Lag
💾

Video Memory (VRAM)

The Radeon HD 8990 has 3 GB of VRAM, while the Radeon RX 6300 carries 4 GB. Radeon RX 6300 gives you 33.3% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bandwidth: 288 GB/s x2 (Radeon HD 8990) vs 64 GB/s (Radeon RX 6300) — a 4403.1% advantage for the Radeon HD 8990. Memory bus width is 384-bit x2 on the Radeon HD 8990 and 32-bit on the Radeon RX 6300. L2 Cache: 0.75 MB (Radeon HD 8990) vs 1 MB (Radeon RX 6300) — the Radeon RX 6300 has significantly larger on-die cache to reduce VRAM reliance.

FeatureRadeon HD 8990Radeon RX 6300
VRAM Capacity
3 GB
4 GB+33%
Memory Type
GDDR5
GDDR6
Memory Bandwidth
288 GB/s x2+350%
64 GB/s
Bus Width
384-bit x2+1100%
32-bit
L2 Cache
0.75 MB
1 MB+33%
🔌

Power & Dimensions

The Radeon HD 8990 draws 375W versus the Radeon RX 6300's 35W — a 165.9% difference. The Radeon RX 6300 is more power-efficient. Recommended PSU: 750W (Radeon HD 8990) vs 300W (Radeon RX 6300). Power connectors: 2x 8-pin vs PCIe-powered.

FeatureRadeon HD 8990Radeon RX 6300
TDP
375W
35W-91%
Recommended PSU
750W
300W-60%
Power Connector
2x 8-pin
PCIe-powered
Length
160mm
Slots
1
Perf/Watt
13.9
152.0+994%
💰

Value Analysis

At launch, the Radeon HD 8990 came in at $999, while the Radeon RX 6300 launched at $60. On MSRP, Radeon RX 6300 was 94% cheaper ($939 less). Performance per dollar on MSRP (G3D Mark / MSRP): 5.2 (Radeon HD 8990) vs 88.7 (Radeon RX 6300) — the Radeon RX 6300 offers 1605.8% better value. The newer card here is Radeon RX 6300 (2022 vs 2013).

FeatureRadeon HD 8990Radeon RX 6300
MSRP
$999
$60-94%
Performance per Dollar
5.2
88.7+1606%
Codename
Malta
Navi 24
Release
April 24 2013
January 4 2022
Ranking
#412
#379

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