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GPU Comparison
AMD Radeon HD 7990 vs NVIDIA GeForce 8800 GS Mac Edition
AMD Radeon HD 7990 vs NVIDIA GeForce 8800 GS Mac Edition
VS
AMD Radeon HD 7990
NVIDIA GeForce 8800 GS Mac Edition
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 512MB VRAM GeForce 8800 GS Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7990 's Advantages
Released 5 years and 3 months late
Boost Clock1000MHz
Larger VRAM bandwidth (288.0GB/s vs 51.14GB/s)
1984 additional rendering cores
NVIDIA GeForce 8800 GS Mac Edition 's Advantages
Lower TDP (105W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 7990
+2460%
4.096 TFLOPS
GeForce 8800 GS Mac Edition
0.16 TFLOPS
Radeon HD 7990
VS
GeForce 8800 GS Mac Edition
Graphics Card
Apr 2013
Release Date
Jan 2008
Southern Islands
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
MXM-HE
Clock Speeds
950 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1500 MHz
Memory Clock
799 MHz
Memory
3GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
256bit
288.0GB/s
Bandwidth
51.14GB/s
Render Config
-
SM Count
8
32
Compute Units
-
2048
Shading Units
64
128
TMUs
32
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
768 KB
L2 Cache
64 KB
Theoretical Performance
32.00 GPixel/s
Pixel Rate
8.000 GPixel/s
128.0 GTexel/s
Texture Rate
16.00 GTexel/s
-
FP16 (half)
-
4.096 TFLOPS
FP32 (float)
160.0 GFLOPS
1024 GFLOPS
FP64 (double)
-
Graphics Processor
Malta
GPU Name
G92
Malta XT (215-0849026)
GPU Variant
-
GCN 1.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
65 nm
4.313 billion
Transistors
0.754 billion
365 mm²
Die Size
324 mm²
Board Design
375W
TDP
105W
750 W
Suggested PSU
300 W
1x DVI 4x mini-DisplayPort 1.2
Outputs
No outputs
2x 8-pin
Power Connectors
None
Graphics Features
12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.1
5.1
Shader Model
4.0
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