GRID M60-8A vs Radeon HD 7990

GRID M60-8A

2015Core: 557 MHzBoost: 1178 MHz
Similar parts
·······
VS
AMD

Radeon HD 7990

2013Core: 950 MHzBoost: 1000 MHz
Similar parts
·······

GRID M60-8A vs Radeon HD 7990 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.

GRID M60-8A vs Radeon HD 7990: Pros, Cons & Final Verdict

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

GRID M60-8A

2015

Why buy it

  • 33.3% more VRAM for high-resolution textures and newer games (4 GB vs 3 GB).
  • Draws 225W instead of 375W, a 150W reduction.
  • Measures 1mm instead of 305mm, a 304mm shorter card that is more SFF-friendly.

Trade-offs

  • 2015 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
  • 150.3% HIGHER MSRP
    $2,500 MSRPvs$999 MSRP
  • Lower G3D Mark per dollar, at 2.2 vs 5.6 G3D/$ ($2,500 MSRP vs $999 MSRP).

Radeon HD 7990

2013

Why buy it

  • Costs $1,501 less on MSRP ($999 MSRP vs $2,500 MSRP).
  • Delivers 152.2% more G3D Mark for each dollar spent, at 5.6 vs 2.2 G3D/$ ($999 MSRP vs $2,500 MSRP).

Trade-offs

  • Less VRAM, with 3 GB vs 4 GB for high-resolution textures and newer games.
  • 2013 hardware with 3 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
  • 66.7% higher power demand at 375W vs 225W.
  • 30400% longer card at 305mm vs 1mm.

Quick Answers

Which GPU is faster for gaming right now?
Radeon HD 7990 is the faster gaming card right now based on the synthetic data we have. It leads by 0.8% in PassMark G3D (5,566 vs 5,523), which is the best performance signal available in this matchup.
Which GPU is the safer long-term pick for 2026 and beyond?
GRID M60-8A is the safer long-term pick for 2026 and beyond. The case is simple: 4 GB vs 3 GB of VRAM and a newer 2015 generation instead of 2013. That gives it more room for heavier textures and higher settings over time.
Which GPU is the better buy today?
Radeon HD 7990 makes the most sense to buy today. It is $1,501 cheaper on MSRP at $999 vs $2,500, and it leads G3D-per-dollar by 152.2% (5.6 vs 2.2), so the value case lines up with the gaming result. If you are mainly targeting 1080p and some 1440p, Radeon HD 7990 is the easier value choice. If you care more about 1080p and some 1440p headroom, GRID M60-8A has the stronger long-term case.

GRID M60-8A vs Radeon HD 7990 Technical Specifications

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

NVIDIA

GRID M60-8A

The GRID M60-8A is manufactured by NVIDIA. It was released in August 30 2015. It features the Maxwell 2.0 architecture. The core clock ranges from 557 MHz to 1178 MHz. It has 2048 shading units. The thermal design power (TDP) is 225W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 5,523 points.

AMD

Radeon HD 7990

The Radeon HD 7990 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: 5,566 points. Launch price was $999.

Graphics Performance

The GRID M60-8A scores 5,523 and the Radeon HD 7990 reaches 5,566 in the G3D Mark benchmark — just a 0.8% difference, making them near-identical in rasterization performance. The GRID M60-8A is built on Maxwell 2.0 while the Radeon HD 7990 uses GCN 1.0, both on a 28 nm process. Shader units: 2,048 (GRID M60-8A) vs 2,048 (Radeon HD 7990). Raw compute: 4.825 TFLOPS (GRID M60-8A) vs 4.096 TFLOPS ×2 (Radeon HD 7990). Boost clocks: 1178 MHz vs 1000 MHz.

FeatureGRID M60-8ARadeon HD 7990
G3D Mark Score
5,523
5,566
Architecture
Maxwell 2.0
GCN 1.0
Process Node
28 nm
28 nm
Shading Units
2048
2048 ×2
Compute (TFLOPS)
4.825 TFLOPS+18%
4.096 TFLOPS ×2
Boost Clock
1178 MHz+18%
1000 MHz
ROPs
64+100%
32 ×2
TMUs
128
128 ×2
L1 Cache
768 KB+50%
512 KB
L2 Cache
2 MB+167%
0.75 MB

Advanced Features (DLSS/FSR)

FeatureGRID M60-8ARadeon HD 7990
Upscaling Tech
Upscaling support
FSR Upscaling / FSR 4
Frame Generation
Not Supported
Not Supported
Ray Reconstruction
No
No
Low Latency
Standard
AMD Anti-Lag
💾

Video Memory (VRAM)

The GRID M60-8A has 4 GB of VRAM, while the Radeon HD 7990 carries 3 GB. GRID M60-8A gives you 33.3% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GRID M60-8A and 384-bit x2 on the Radeon HD 7990. L2 Cache: 2 MB (GRID M60-8A) vs 0.75 MB (Radeon HD 7990) — the GRID M60-8A has significantly larger on-die cache to reduce VRAM reliance.

FeatureGRID M60-8ARadeon HD 7990
VRAM Capacity
4 GB+33%
3 GB
Memory Type
GDDR6
GDDR5
Bus Width
128-bit
384-bit x2+200%
L2 Cache
2 MB+167%
0.75 MB
🖥️

Display & API Support

DirectX support: 12_1 (GRID M60-8A) vs 12 (11_1) (Radeon HD 7990). Maximum simultaneous displays: 0 vs 5.

FeatureGRID M60-8ARadeon HD 7990
DirectX
12_1
12 (11_1)
Max Displays
0
5
🔌

Power & Dimensions

The GRID M60-8A draws 225W versus the Radeon HD 7990's 375W — a 50% difference. The GRID M60-8A is more power-efficient. Recommended PSU: 350W (GRID M60-8A) vs 750W (Radeon HD 7990). Power connectors: PCIe-powered vs 2x 8-pin. Card length: 1mm vs 305mm, occupying 0 vs 2 slots.

FeatureGRID M60-8ARadeon HD 7990
TDP
225W-40%
375W
Recommended PSU
350W-53%
750W
Power Connector
PCIe-powered
2x 8-pin
Length
1mm
305mm
Height
111mm
Slots
0-100%
2
Temp (Load)
85
Perf/Watt
24.5+66%
14.8
💰

Value Analysis

At launch, the GRID M60-8A came in at $2500, while the Radeon HD 7990 launched at $999. On MSRP, Radeon HD 7990 was 60% cheaper ($1501 less). Performance per dollar on MSRP (G3D Mark / MSRP): 2.2 (GRID M60-8A) vs 5.6 (Radeon HD 7990) — the Radeon HD 7990 offers 154.5% better value. The newer card here is GRID M60-8A (2015 vs 2013).

FeatureGRID M60-8ARadeon HD 7990
MSRP
$2500
$999-60%
Performance per Dollar
2.2
5.6+155%
Codename
GM204
Malta
Release
August 30 2015
April 24 2013
Ranking
#505
#412

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.