GPU Comparison
RADEON
AMD Radeon HD 7790
CORE STATE
Bonaire
VRAM
1024 MB
CLOCK SPEED
—
TDP
85 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
RADEON
Radeon R9 M295X
CORE STATE
Amethyst
VRAM
4 GB
CLOCK SPEED
—
TDP
250 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7790
R9 M295X
Core Specs
Shading Units
896
2,048
+128.6%
Shaders
896
2,048
+128.6%
TMUs
56
128
+128.6%
ROPs
16
32
+100.0%
Compute Units
14
32
+128.6%
Clocks
GPU Clock
1000 MHz
723 MHz
Memory Clock
1500 MHz
6 Gbps effective
1250 MHz
5 Gbps effective
Memory
Memory Size
1024 MB
4 GB
VRAM (MB)
1,024
4,096
+300.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
96.00 GB/s
160.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
512 KB
Performance
Pixel Rate
16.00 GPixel/s
23.14 GPixel/s
Texture Rate
56.00 GTexel/s
92.54 GTexel/s
FP32 (TFLOPS)
1.792 TFLOPS
2.961 TFLOPS
FP64 (TFLOPS)
112.0 GFLOPS (1:16)
185.1 GFLOPS (1:16)
FP16 (TFLOPS)
—
2.961 TFLOPS (1:1)
Power
TDP
85 W
250 W
TDP (W)
85
250
+194.1%
Suggested PSU
250 W
—
Power Connectors
1x 6-pin
None
Architecture
Architecture
GCN 2.0
GCN 3.0
GPU Name
Bonaire
Amethyst
Generation
Southern Islands
(HD 7700)
Gem System
(R9 M200)
Process Size
28 nm
28 nm
Transistors
2,080 million
5,000 million
Die Size
160 mm²
366 mm²
Foundry
TSMC
TSMC
Density
13.0M / mm²
13.7M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1
2.1
Shader Model
6.5
6.5
Physical
Slot Width
Dual-slot
MXM Module
Length
183 mm
7.2 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Other
Launch Price
149 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Solar System
Successor
Sea Islands
Polaris Mobile