GPU Comparison
RADEON
AMD Radeon HD 7950
CORE STATE
Tahiti
VRAM
3 GB
CLOCK SPEED
—
TDP
200 W
BUS WIDTH
384 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
VS
RADEON
Radeon R6 M255DX
CORE STATE
Jet
VRAM
System Shared
CLOCK SPEED
855 MHz
TDP
—
BUS WIDTH
System Shared
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7950
R6 M255DX
Core Specs
Shading Units
1,792
320
-82.1%
Shaders
1,792
320
-82.1%
TMUs
112
20
-82.1%
ROPs
32
8
-75.0%
Compute Units
28
5
-82.1%
Clocks
Base Clock
—
780 MHz
Boost Clock
—
855 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
System Shared
Memory
Memory Size
3 GB
System Shared
VRAM (MB)
3,072
—
Memory Type
GDDR5
System Shared
Memory Bus
384 bit
System Shared
Bandwidth
240.0 GB/s
System Dependent
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
128 KB
Performance
Pixel Rate
25.60 GPixel/s
6.840 GPixel/s
Texture Rate
89.60 GTexel/s
17.10 GTexel/s
FP32 (TFLOPS)
2.867 TFLOPS
547.2 GFLOPS
FP64 (TFLOPS)
716.8 GFLOPS (1:4)
34.20 GFLOPS (1:16)
Power
TDP
200 W
—
TDP (W)
200
—
Suggested PSU
550 W
—
Power Connectors
2x 6-pin
—
Architecture
Architecture
GCN 1.0
GCN 1.0
GPU Name
Tahiti
Jet
Generation
Southern Islands
(HD 7900)
Gem System Hybrid
(Rx M200)
Process Size
28 nm
28 nm
Transistors
4,313 million
690 million
Die Size
352 mm²
56 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
12.3M / mm²
API Support
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1 (1.2)
2.1 (1.2)
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
Dual-slot
IGP
Length
278 mm
10.9 inches
—
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
IGP
Other
Launch Price
449 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
—
Successor
Sea Islands
—